terabeam gigalink field installation and service manual

Terabeam Gigalink Field Installation and Service Manual

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS. (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. IF THIS PRODUCT IS SUSPECTED OF CAUSING HARMFUL INTERFERENCE WITH OTHER EQUIPMENT, DISCONTINUE OPERATION IMMEDIATELY AND CONTACT TERABEAM. THE INSTALLER OF THIS RADIO EQUIPMENT MUST ENSURE THAT THE ANTENNA IS LOCATED OR POINTED SUCH THAT IT DOES NOT EMIT RF FIELD IN EXCESS OF HEALTH CANADA LIMITS FOR THE GENERAL POPULATION; CONSULT SAFETY CODE 6, OBTAINABLE FROM HEALTH CANADAS WEBSITE WWW.HC-SC.GC.CA/RPB. FCC ID # O2700000-30-30, IC ID #: 4505A-00003030

Terabeam Gigalink Field Installation and Service Manual

December 2005

Document Number: 040-1203-0000 Revision: C

This manual is valid for the Terabeam Gigalink 6221e, 6421e, 6232e, 6432e, and 6442e.

Copyright 2005 Terabeam Wireless All Rights Reserved

Terabeam is a registered trademark of Terabeam Wireless. Gigalink and Gigamon are trademarks of Terabeam Wireless.

Federal Communications Commission (FCC) Compliance Statement This equipment is designed to comply with the limits for a Class A digital device, pursuant to Title 47, Volume 1, Part 15.255 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the field installation manual, could cause interference with radio communications. Operation of this equipment in a residence may cause interference with other devices, in such case the user will be required to correct the interference at his own expense. Furthermore, any changes or modifications to this equipment without the expressed approval of Terabeam Corporation are strictly prohibited and would void the users authority to operate the equipment. Operation is subject to the following two conditions: this device may not cause harmful interference and this device must accept any interference received, including interference that may cause undesired operation. If this product is suspected of causing harmful interference with other equipment, discontinue operation immediately and contact Terabeam. The information in this document is subject to change without notice. Although every effort has been made to make this field installation and service manual accurate and complete, Terabeam Corporation assumes no responsibility for any errors that may appear in this document.

Terabeam Wireless 22 Parkridge Road

Haverhill, MA 01835

www.proxim.com

Table of Contents iii Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

Table of Contents 1 Introduction.............................................................................................................. 1-1 1.1 Purpose ...................................................................................................................................1-1 1.2 Organization ...........................................................................................................................1-1 1.3 Installation Assumptions ........................................................................................................1-2 1.4 Job Site Safety ........................................................................................................................1-2 1.5 Revisions ................................................................................................................................1-2 1.6 Technical Assistance ..............................................................................................................1-2 2 System Overview...................................................................................................... 2-1 2.1 General Description................................................................................................................2-1 2.2 System Components ...............................................................................................................2-2 3 Pre-Installation Planning ........................................................................................ 3-1 3.1 Location Criteria.....................................................................................................................3-1 3.2 Mounting Options...................................................................................................................3-2 3.3 Electrical Service....................................................................................................................3-4 3.4 Network Planning...................................................................................................................3-5 3.5 Tools and Equipment..............................................................................................................3-7 4 Installation................................................................................................................ 4-1 4.1 Unpacking ..............................................................................................................................4-1 4.2 Mount Installation ..................................................................................................................4-1 4.3 Transceiver Installation ..........................................................................................................4-2 4.4 Rough Alignment ...................................................................................................................4-5 4.5 Electrical Connections............................................................................................................4-5 4.6 Network Connections .............................................................................................................4-6 5 Setup and Operation................................................................................................ 5-1 5.1 Gigamon Software Installation and Setup..............................................................................5-1 5.2 Final Alignment......................................................................................................................5-4 5.3 Gigamon Software Removal ..................................................................................................5-3 5.4 Transceiver MIB.....................................................................................................................5-4 6 Gigamon Software ................................................................................................... 6-1 6.1 Overview ................................................................................................................................6-1 6.2 Main Window.........................................................................................................................6-1 6.3 Monitoring Gigalink Terminals..............................................................................................6-5 6.4 Configuring Gigalink Terminals ............................................................................................6-7

iv Table of Contents Terabeam Gigalink Field Installation and Service Manual

Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06

Proprietary and Confidential

7 Monitoring and Routine Maintenance................................................................... 7-1 7.1 Monitoring ............................................................................................................................. 7-1 7.2 Maintenance........................................................................................................................... 7-1 8 Troubleshooting and Repair ................................................................................... 8-1 8.1 Troubleshooting Guidance..................................................................................................... 8-1 8.2 Technical Assistance.............................................................................................................. 8-4

Appendixes

A Site Survey Checklist

B Handling and Connecting Fiber Optic Cable

C Transceiver MIB

Table of Contents v Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/8/05 / Print Date: 03/03/06 Proprietary and Confidential

Tables 2-1 System Specifications.............................................................................................................2-2 3-1 Values for Gigalink Optical Interface Parameters..................................................................3-5 3-2 SNMP Cable Wiring Configuration .......................................................................................3-6 8-1 Gigalink Installation Troubleshooting Guide.........................................................................8-3

Figures 2-1 Gigalink Transceiver with Patch Antenna..............................................................................2-1 2-2 Gigalink Transceiver with Parabola Antenna.........................................................................2-2 2-3 Gigalink Transceiver Interfaces .............................................................................................2-3 2-4 AC/DC Power Module ...........................................................................................................2-4 2-5 Fiber Loop-Back Jumper Cable..............................................................................................2-4 2-6 Adapter Cable.........................................................................................................................2-5 2-7 10Base-T Adapter Cable ........................................................................................................2-5 2-8 Custom Connector..................................................................................................................2-5 2-9 Gimbal Mount ........................................................................................................................2-6 2-10 Mounting Bracket...................................................................................................................2-7 3-1 Standard Pole Mount ..............................................................................................................3-3 3-2 Typical Wall Mount ...............................................................................................................3-4 3-3 Electrical Power Cabling Diagram.........................................................................................3-4 3-4 Network Cabling Diagram .....................................................................................................3-5 3-5 Wiring Diagram for Permanent SNMP Cable........................................................................3-6 4-1 Schematic of Mounting Bracket Assembly for Pole Mount...................................................4-2 4-2 Gimbal Optimized for Upward and Downward Angles.........................................................4-2 4-3 Transceiver Optimized for Side to Side Angles .....................................................................4-3 4-4 Attaching the Gimbal Mount to the Base of the Transceiver .................................................4-4 4-5 Attaching the Gimbal Base to the Mounting Bracket.............................................................4-4 4-6 Gigalink Network and Power Connections ............................................................................4-5 5-1 Initial Gigamon Main Window ..............................................................................................5-1 5-2 Select Gigalink Dialog Box....................................................................................................5-2 5-3 Gigamon Main Window (Run Mode) ....................................................................................5-2 6-1 Main Window with RX Power in A/D Count ........................................................................6-2 6-2 Main Window with RX Power in Decibels ............................................................................6-4 6-3 Select Gigalink Dialog Box ...................................................................................................6-5 6-4 Save Gigalink Info in a File as Dialog Box............................................................................6-6 6-5 Sample of Saved Gigalink Data .............................................................................................6-7

vi Table of Contents Terabeam Gigalink Field Installation and Service Manual



6-6 Network and Security Settings Dialog Box ........................................................................... 6-7 6-7 Triggering Parameters and Setting Threshold Dialog Box.................................................... 6-9 8-1 Gigamon Main Window ........................................................................................................ 8-1 8-2 Select Gigalink Dialog Box ................................................................................................... 8-2 8-3 Gigamon Main Window (Run Mode).................................................................................... 8-2

Acronyms and Abbreviations vii Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/8/05 / Print Date: 03/03/06 Proprietary and Confidential

Acronyms and Abbreviations

AWG American Wire Gauge BER bit error rate DTE data terminal equipment NIC network interface card FCC Federal Communications

Commission FE Fast Ethernet GFI ground fault interrupt Mbps Megabits per second M micrometer MMW millimeter wave OD outside diameter PLL phase lock loop RF radio frequency RX receive SNMP simple network management

protocol TX transmit

Chapter 1 Introduction 1-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05/ Print Date: 03/03/06 Proprietary and Confidential

1 Introduction 1.1 Purpose

The purpose of this document is to present guidance for the installation, alignment, and maintenance of Terabeam Gigalink terminal, a high-performance, millimeter wave (MMW) radio communication system. This manual is applicable to the Terabeam Gigalink models identified below. 6221e/6421e 125 Mbps (Fast Ethernet (FE)/100Base-FX) 6232e/6432e 155 Mbps (OC-3/STM-1) This document presents a brief overview of the Gigalink and its components and includes discussions of system requirements, installation, alignment, software setup, routine maintenance, and troubleshooting. Information relevant to safety is also provided. It is recommended that users read this manual in its entirety prior to installation.

1.2 Organization This field installation and service manual is organized into chapters, with discussions of individual topics clearly identified. Tables and figures are provided, as appropriate. Chapters are organized as follows: Chapter 1, Introduction. Summarizes the purpose and organization of the document. Chapter 2, System Overview. Describes system components. Chapter 3, Pre-Installation Planning. Outlines planning activities to be completed prior to

installation, including the verification of equipment location and mount selection, network design, and determination of materials and tools that will be needed for assembly, installation, and alignment.

Chapter 4, Installation. Provides guidelines for unpacking and procedures for terminal installation.

Chapter 5, Setup and Operation. Provides step-by-step procedures for equipment pointing, power up, configuration setup, and link alignment.

Chapter 6, Gigamon Software. Details Gigamon software use, including selecting, configuring, and monitoring terminals, and saving monitoring data.

Chapter 7, Monitoring and Routine Maintenance. Presents recommendations for the inspection, monitoring, and maintenance of system components.

Chapter 8, Troubleshooting and Repair. Provides troubleshooting guidelines and procedures for the removal and replacement of system components.

1-2 Chapter 1 Introduction Terabeam Gigalink Field Installation and Service Manual



1.3 Installation Assumptions This manual has been prepared to permit technicians who have no prior experience with MMW radio equipment to install, align, troubleshoot, and maintain Gigalink terminals. It is assumed that individuals using this manual are knowledgeable and experienced in the following areas: Installation of electronic equipment and associated mounting structures in a variety of

building environments, including the use of standard tools (e.g., drills) required for installation

Installation and launching of software applications and configuring network settings on a laptop computer

Basic problem-isolation and troubleshooting IP networking Handling, cleaning, inspection, and connection of fiber optic cable

1.4 Job Site Safety The installation of the Terabeam Gigalink involves activities, such as rooftop construction, which, if done improperly, could pose a safety hazard to the installer. The installer is responsible for compliance with all applicable laws, regulations, and building and safety codes. Furthermore, in general, employers are responsible for the safety of their employees and must comply with all applicable worker safety regulations, including the need to provide training and personal protective equipment.

1.5 Revisions Changes to this manual may be made from time to time. When this occurs, these changes will be issued as errata and posted on the Terabeam/Proxim Extranet (www.proxim.com). Customers are advised to check the Web site periodically and prior to installation for applicable errata.

1.6 Technical Assistance Terabeam provides technical assistance through Proxim Wireless to answer questions and provide guidance regarding installation and service. To contact the Proxim Technical Service staff during normal business hours of 8:00 AM to 6:00 PM M-F Pacific Time from within the United States, the toll-free number is 1-866-674-6626. For calls from outside the United States, the number is the international direct dial code followed by +1-408-542-5390. Online Technical support is also available via the Proxim Wireless Website http://www.proxim.com/support/contact.html

Chapter 2 System Overview 2-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

2 System Overview 2.1 General Description

The Terabeam Gigalink MMW system operates in the FCC Part 15.255 unlicensed band that covers the frequency range of 57.05 to 64.0 GHz. In view of the unlicensed status of this band, a Federal Communications Commission (FCC) license or special authorization is not required to operate Gigalink systems.

Note: Changes or modifications not expressly approved by the party responsible for FCC compliance could void the users authority to operate this equipment.

Gigalink systems are available in two full duplex data rates (125 Mbps [FE/100Base-FX] and155 Mbps [OC-3/STM-1]. These systems are available with two different antenna configurations, patch or parabolic, to accommodate various link ranges (see Figures 2-1 and 2-2). Both the patch and parabolic transceivers are designed to be operated using facility AC power. Specifications for both the patch and parabola transceivers are provided in Table 2-1.

2-2 Chapter 2 System Overview Terabeam Gigalink Field Installation and Service Manual



Figure 2-1: Gigalink Transceiver with Patch Antenna

Figure 2-2: Gigalink Transceiver with Parabola Antenna

Table 2-1: System Specifications Parameter Specification

Transceiver dimensions (H x W x D) Patch 16 x 24 x 12 cm (6.3 x 9.4 x 4.7 in.) Parabola 33 x 33 x 20 cm (13 x 13 x 7.9 in.)

Transceiver weight Patch 5.9 kg (13 lbs) Parabola 7.7 kg (17 lbs)

AC/DC power module dimensions (H x W x D) 16 x 16 x 10 cm (6.3 x 6.3 x 3.9 in.) AC/DC power module weight 3.2 kg (7 lbs) AC power consumption 110 watts AC input voltage 100 to 120 VAC, 50 to 60 Hz Maximum AC input current 1 amp Environmental -20 C to 50 C (-4 F to 122 F) operating temperature

-30 C to 85 C (-22 F to 185 F) storage temperature Humidity up to 95%, non-condensing


2.2 System Components The primary components of the Gigalink are listed below and discussed in greater detail in the subsections that follow. Gigalink transceiver Gigalink AC/DC power module with mounting kit Fiber loop-back jumper cable Adapter cable and SC-SC coupler 10Base-T adapter cable and spare connector kit Gimbal mount Mounting bracket Mounting Hardware kit

2.2.1 Transceiver Gigalink transceivers have either a patch or a parabola antenna (see Figures 2-1 and 2-2). The type of antenna appropriate for each application is dependent on the range. All electrical and network connections are made at the base of the transceiver. The transceiver can only be used in conjunction with the provided AC/DC power module and operated with facility AC power. The terminal interfaces are shown in Figure 2-3.

Figure 2-3: Gigalink Transceiver Interfaces

Note: The Gigalink transceiver is designed to be used in conjunction with the provided AC/DC power module and operated with facility AC power.




2.2.2 AC/DC Power Module Each Gigalink is supplied with an AC/DC power module that comes equipped with two permanently attached cables (see Figure 2-4). The cable that runs between the power module and the transceiver is 1.9 m (75 in.) in length and terminates in a weatherproof DC multi-conductor connector for connection to the transceiver. The cable that connects the power module to the main AC power source (i.e., roof-mounted outlet box) is 2.8 m (110 in.) in length and terminates in a standard U.S. three-prong plug. The AC/DC power module and cables are suitable for outdoor use, and no special provisions are required to shelter these components. The power module mounting kit supplied should be used to mount the module so that it is clear of standing water with the cable penetrations on the bottom edge.

Figure 2-4: AC/DC Power Module

2.2.3 Fiber Loop-Back Jumper Cable The fiber loop-back jumper cable is used during initial alignment or to facilitate troubleshooting (see Figure 2-5). The two FC connectors on the cable attach to the FC data ports on the Gigalink transceiver to loop back the data.

Figure 2-5: Fiber Loop-Back Jumper Cable

FCconnectors


2.2.4 Adapter Cable The adapter cable is used to temporarily connect the transceiver to test or other equipment during initial alignment or to facilitate troubleshooting (see Figure 2-6). The two FC connectors on the cable attach to the FC data ports on the Gigalink transceiver. The two SC connectors attach to standard SC-terminated cables through use of provided SC-SC coupler.

Note: The adapter cable is not a weatherproof cable type and must not be used to permanently connect to network services.

Figure 2-6: Adapter Cable

2.2.5 10Base-T Adapter Cable A 10Base-T adapter cable is provided with each Gigalink terminal and is used to connect the transceiver to the field service laptop for installation and monitoring (see Figure 2-7). The 2.2-m (86-in.) cable is fitted with an RJ-45 connector at one end for connection to the laptop and has a weatherproof DC connector at the other end for connection to the transceiver.

Figure 2-7: 10Base-T Adapter Cable

SC connectors

FC connectors

RJ-45 connector

Weatherproof DC connector




2.2.6 Custom Connector A stand-alone custom, weatherproof connector is provided to allow for permanent management (through the transceivers 10Base-T SNMP port) when connected to customer-provided CAT5 cable (see Figure 2-8). Instructions for attaching the connector to the cable are provided in Chapter 3.

Figure 2-8: Custom Connector

2.2.7 Gimbal Mount The gimbal mount is used to attach the transceiver to the mounting bracket. It consists of two primary components that come preassembled with four M8 x 18-mm bolts, lock washers, and flat washers (two on each side). Each side of the upper bracket features a hole near the top and a curved slot near the middle of the side plate (see Figure 2-9). This arrangement allows the transceiver to be tilted at an upward or downward angle, with the upper bolt on each side serving as a pivot point. Four M8 bolts are used to attach the gimbal mount to the transceiver by means of holes that are tapped into the aluminum transceiver housing. These bolts are provided and are packaged with the gimbal mount. Three 5/16-18 bolts are required to attach the base of the gimbal mount to the mounting plate. These bolts also are provided but are packaged with the U-bolts.

Figure 2-9: Gimbal Mount


2.2.8 Mounting Bracket The mounting bracket is an aluminum, L-shaped bracket that is used to mount the transceiver to a mounting structure (i.e., a pole or wall) (see Figure 2-10). The top plate of the bracket features five holes near the edge of the plate. These are used to attach the gimbal mount to the bracket. The back plate includes two sets of holes that are used to attach the mount to the mounting structure.

Figure 2-10: Mounting L- Bracket

Included with the mounting bracket are two U-bolts to accommodate mounting pipe diameter from 6.35-cm (2.5-in.) to 10.16-cm (4.0-in.). The U-bolts are attached to the mounting bracket with - 13 nuts and washers. These items are supplied as a hardware kit packaged separately in the terminal shipping carton. The Mounting L-Bracket can also be used for wall mounting by drilling holes in a suitably secure masonary wall and using wall anchors of a minimum size of -13 thread. The backside of the mounting L-Bracket can be used as a template to locate the holes while drilling.

Note: All hardware supplied with the Gigalink radio system is either stainless steel or iridited aluminum to prevent corrosion. Terabeam recommends replacing any lost items with similar corrosion resistant materials to prevent seizure or galling.

Chapter 3 Pre-Installation Planning 3-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

3 Pre-Installation Planning It is recommended that installers perform an onsite inspection and complete pre-installation planning prior to the installation of the Gigalink terminals. Pre-installation planning tasks include: Selecting appropriate locations for all equipment based on the location criteria (see

Section 3.1) Identifying and procuring (as necessary) a suitable mounting structure (i.e., pole or wall) for

each terminal Identifying any facility improvements (e.g., power) that will be required prior to installation Developing a detailed cable routing and installation plan, including lengths and types of

cables and conduit that will be needed Obtaining any necessary permissions and verifying regulatory and safety compliance Verifying that any network system equipment provided by others will be available at the

specified locations during installation Determining the network configuration for equipment Identifying additional tools and equipment, if any, that will be needed to support equipment

installation It is also recommended that installers prepare sketches that show where all system components will be located and how cables will be routed between components. A sample site survey checklist that addresses these issues is included in Appendix A. The procedures described in Chapters 4 and 5 of this manual are based on the assumption that the equipment locations have been identified and all facility improvements have been made.

Note: Guidance provided in this section should not be construed to be comprehensive or to cover the full range of issues applicable to all site conditions that might be encountered. Installers must evaluate each site and select appropriate equipment locations on a case-by-case basis.

3-2 Chapter 3 Pre-Installation Planning Terabeam Gigalink Field Installation and Service Manual



3.1 Location Criteria Considerations for locating the Gigalink terminal include the following: Line of Sight. The location of the transceiver must have an unobstructed line of sight to the

opposite end of the link. Potential obstructions include but are not limited to the following: Onsite Obstructions. The transceiver should be sufficiently high and at a location such that

the line of sight will not be compromised by conditions or activities on the roof. At a minimum, the line of sight should clear the edge of the building (or parapet) by no less than 30 cm (12 in.). Possible obstructions include potential snow buildup on raised structures (e.g., parapet walls) and periodic rooftop activities, such as staging for window washing. In addition, a mounting elevation of greater than 2.4 m (8 ft) is recommended in order to prevent individuals on the roof from bumping into the transceiver or interrupting the beam.

Obstructions Across Link. The line of sight across the link must clear all intervening obstacles. Considerations include seasonal vegetation, potential tree growth, planned building construction, or partial obstructions such as power lines or fences. Obstructions in the main beam reduce the power received at the opposite terminal.

Multi-path Interference. The transceiver line of sight should be free of reflections from nearby objects or surfaces, such as buildings, towers, roofs, or asphalt. Multi-path interference occurs when the transmitted signal arrives at the receiver via two or more paths the main beam and reflections from the main beam or antenna side-lobes. Such interference is highly dependent on location so relocating one or both terminals by as little as a few feet can usually correct the problem. If possible, extended paths less than 5 m (16.4 ft) above rooftops or asphalt should be avoided.

Mounting Surface. Preferred mounting surfaces for the Gigalink transceiver include a pole or solid wall, including a building parapet or other structural component of the buildings framework. If the terminal will be mounted on a pole, the pole must be attached to a structurally stable foundation.

Environmental Conditions. The Gigalink radio terminal is weatherproof but not watertight. The height of the terminal must be adequate to protect the radio from standing water, rain splash, and snow buildup. The Gigalink terminal must be mounted so that all interfaces remain on the bottom edge with cable service loops to prevent moisture wicking into the terminal housing.

Regulatory Compliance and Permissions. The selected transceiver location must comply with all applicable regulatory and zoning requirements as well as rules and restrictions imposed by the building owner or manager.

Note: The installer is responsible for identifying and complying with all applicable regulatory, zoning or other restrictions and obtaining the necessary permissions from the appropriate authorities and building management prior to installation.


3.2 Mounting Options There are two standard mounting options for the Gigalink terminal: pole mount and wall mount. Both alternatives are discussed in detail below.

3.2.1 Standard Pole Mount The Gigalink comes with a mounting bracket, two sizes of U-bolts, and all of the hardware (i.e., washers, lock washers, and nuts) necessary to mount the transceiver to a pole (see Figure 3-1). The pole must be made of structural steel with an outside diameter (OD) of 6.3 cm (2.5 in.) to 10.16 cm (4.0 in.) and provide the stability necessary to maintain terminal alignment under severe wind conditions. In addition, the selected mount must be of sufficient height to achieve a clear line of sight. A mounting elevation of greater than 2.4 m (8 ft) is recommended to prevent individuals on the roof from bumping into the transceiver or breaking the beam. For most installations, a 10.1-cm (4-in.)-diameter or greater pole is recommended to provide elevation up to 3 m (10 ft).




Figure 3-1: Standard Pole Mount

In most cases, it is advisable to use a mounting system that does not penetrate the roof membrane material. Generally, a roofers warranty is void if a non-roofing contractor penetrates the roof. A recommended non-penetrating roof mount is the Valmont Microflect Model 99281 tripod mount. Capable of supporting a 2.4 m (8-ft) dish under winds of 200 kilometers per hour (125 miles per hour), the Model 99281 is adequate to maintain precise alignment for up to four Gigalink patch terminals or two Gigalink parabolic terminals when maximum ballast (40.6-cm [16-in.] cinder blocks) is used. A protective rubber mat, such as the Valmont Microflect Model B1564, must also be installed to protect the roof membrane. When mounting more than one Gigalink terminal on the same pole, the following procedures must be followed to avoid interference between links: Parallel Links. Interpose the frequencies (i.e., mount one high-band and one low-band radio on

the same pole) Non-parallel Links. Mount the same frequency (i.e., both high band or both low band) with an

angular separation of greater than 3 degrees for parabola terminals and 9 degrees for patch antennas.

3.2.2 Typical Wall Mount The Gigalink also can be mounted to a stable, secure wall. The hardware necessary to attach the mounting bracket to the wall is not provided with the Gigalink. A typical installation, using four stainless steel bolts with a greater than 3.5 wall anchor depth, is shown in Figure 3-2. If the wall does not support an 3.5 depth or greater wall anchor, a through bolt to a backing plate must be used. It is also recommended that the transceiver be positioned at least 8 ft above the roof surface.

If the wall mount is selected, it is recommended that a safety chain or cable be threaded through the gimbal mount and attached to the wall as an extra security measure. This is of particular importance if the radio is to be mounted above an area that does not have restricted access.


Figure 3-2: Typical Wall Mount

WARNING It is the responsibility of the installer to ensure that the radio is mounted securely. Particular care must be exercised when mounting the radio to a wall above areas that are easily accessible. In some cases, it may be advisable to attach a safety chain or lanyard through the gimbal mount to provide an extra level of security.

3.3 Electrical Service Gigalink terminals require dedicated, 20-amp, 110-VAC service that terminates in a weatherproof outlet box within 1.8 m (6 ft) of the transceiver. A typical electrical cabling diagram is presented as Figure 3-3.

Figure 3-3: Electrical Power Cabling Diagram

Note: All cables must be installed in accordance with applicable local building and electrical codes. In addition, all electrical work must be performed by a licensed electrician.




3.4 Network Planning

The Gigalink uses industry-standard FC connectors for data fiber connection (see Figure 3-4). The network data cables must terminate in an FC male connector with a metal housing and must match the fiber type for the particular terminal as specified in Table 3-1. Data cables are not supplied with the Gigalink. Installers are responsible for identifying and providing the lengths of outdoor-rated cables needed and determining how the cables will be routed. Each network device connecting to the Gigalink terminal will have published specifications for the parameters shown in Table 3-1. An optical power calculation must be performed for each transmit and receive fiber segment between network devices to ensure that power levels fall within an acceptable range.

Figure 3-4: Network Cabling Diagram

Table 3-1: Gigalink Optical Interface Parameters

Model Number Data Rate and Fiber Type

Transmitter Output Power

(dBm)

Maximum Receiver Sensitivity

(dBm)

Minimum Receiver Saturation Point

(dBm) 6221e, 6421e 125 Mbps/155 Mbps, multi-mode

(62.5/125-m or 50/125-m multi-mode fiber) -20 to -14 -31 -14

6232e, 6432e 155 Mbps, single-mode (9/125-m single-mode fiber)

-15 to -8 -29 -8


A 10Base-T adapter cable that is fitted with a custom, weatherproof connector is provided for temporary connection of the transceivers 10-Base-T SNMP port to a field service laptop for use during installation or troubleshooting (see Figure 3-4). In addition, a stand-alone custom connector is provided to allow for permanent management (through the transceivers 10Base-T SNMP port) when connected to customer-provided CAT5 cable (see Figure 3-5). The maximum allowable cable length is 100 m (328 ft). Two wiring configurations for attaching the custom connector to the cable are provided in Table 3-2. The two configuration options are for a cable that: Connects the transceiver to a laptop or other data terminal equipment (DTE) Connects the transceiver directly to a switch or repeater Once the cable has been configured for either option, it can be used for the alternate purpose through the addition of a crossover cable.

Figure 3-5: Wiring Diagram for Permanent SNMP Cable

CAT5 cable (100 m max.)(not provided)

PIN 1

PIN 81

2 3

4

Keyway

Custom connector(provided) RJ-45 connector

(not provided)

Table 3-2: SNMP Cable Wiring Configuration Wiring Configuration When Cable Is

Used to Connect Transceiver to Laptop (DTE)

Wiring Configuration When Cable Is Used to Connect Transceiver to

Switch (Repeater) RJ-45 Pin No./

Wire No. Color Signal Name Custom Connector

Pin No. Signal Name Custom Connector

Pin No. 1 Orange/white Rx D+ 2 Tx D+ 3 2 Orange Rx D- 1 Tx D- 4 3 Green/white Tx D+ 3 Rx D+ 2 4 Blue/white N/A NC N/A NC 5 Blue N/A NC N/A NC 6 Green Tx D- 4 Rx D- 1 7 Brown/white N/A NC N/A NC 8 Brown N/A NC N/A NC N/A = Not applicable. NC = No connection.




3.4 Tools and Equipment The tools and equipment required for installation of the Gigalink terminal are listed below. Installers are responsible for providing all listed items. Installers are encouraged to read through this manual prior to installation and bring any additional tools and equipment, as appropriate. Field service laptop computer that meets the specifications listed below SC-SC fiber adapter SC-FC fiber adapter 19-mm (3/4-in.) combination wrench 13-mm (1/2-in.) combination wrench Media converter or optical modulator UV-rated tie wraps and automotive split-loom sheathing to provide fiber cable protection and

strain relief The field service laptop that is needed for the installation and setup of the Gigalink must meet the following system requirements: CD-ROM drive Microsoft Windows 2000 (while some early releases of Microsoft Windows XP may work

with the Gigamon Software, Gigamon version 1.8.8 does not fully support operation with the Windows XP operating system).

10/100 Ethernet adapter card Screen resolution of 1024 x 768 or higher 128 MB RAM

Note: It is highly recommended that two installers, each equipped with a cell phone and a laptop with Gigamon software, be available for Gigalink installations. While it is possible for one technician to align a pair of Gigalink transceivers, the alignment time can be greatly reduced by using two technicians, one located at each side of the link.

Chapter 4 Installation 4-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

4 Installation 4.1 Unpacking

All of the components for each Gigalink terminal will arrive in a single shipping container. When unpacking the Gigalink terminal, installers should inspect the components to ensure that everything has been received and is intact. If any item is missing, installers should Proxim technical support. The following components are included with each Gigalink terminal. Gigalink radio terminal Gigalink AC/DC power module with attached cables and mounting kit Fiber loop-back jumper cable FC/SC adapter cable and SC-SC coupler 10Base-T adapter cable Custom 10Base-T connector Gimbal mount (packaged with (4) M8 bolts, lock and flat washers) Mounting bracket Hardware kit - (2) U-bolts, nuts, flat and lock washers, (3) 5/16-18 bolts, lock and flat washers Gigamon software CDROM Version 1.8.8 Terabeam Gigalink Field Installation and Service Manual

Note: During unpacking and inspection, keep the hardware that accompanies the gimbal mount separate from the hardware that is provided in the hardware kit for the purpose of attaching the gimbal mount to the mounting plate. Do not mix up the two types of bolts.

4.2 Mount Installation

4.2.1 Pole Mount Locate and orient the mounting pole according to the guidelines in Section 3.2, Mounting Options. The steps for installing the mounting bracket follow. 1. Install two U-bolts around the pole through the appropriate holes in the mounting bracket (see

Figure 4-1). 2. Install the lock washers, washers, and nuts on the U-bolts and tighten them securely.

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Figure 4-1: Schematic of Mounting Bracket Assembly for Pole Mount

4.2.1 Wall Mount The Gigalink also can be mounted to a stable, secure wall. The hardware necessary to attach the mounting bracket to the wall is not provided with the Gigalink. A typical installation, using four stainless steel bolts with greater than 3.5 deep wall anchors, is shown in Figure 3-2. If the wall does not support a 3.5depth or greater wall anchor, a through bolt to a backing plate must be used. If the wall mount is selected, it is recommended that a safety chain or cable be threaded through the gimbal mount and attached to the wall as an extra security measure. This is of particular importance if the transceiver is to be mounted above an area that does not have restricted access.

4.3 Transceiver Installation The first step in installing the transceiver is to attach the gimbal mount to the base of the transceiver. The orientation of the gimbal mount can be optimized for either upward or downward facing links based on the orientation of the curved slot in the gimbal mount (see Figure 4-2). These elevation adjustments are limited to 45 degrees from the neutral position in both directions.

Figure 4-2: Transceiver Optimized for Upward and Downward Angles


The transceiver also can be optimized by making azimuth adjustments. The azimuth adjustments are made by rotating the transceiver side to side using the two slots at the base of the gimbal mount, which is attached to the mounting bracket (see Figure 4-3). The azimuth adjustments are limited to 45 degrees from the neutral position in both directions. The orientation of the transceiver that is required to maintain line of sight between the two terminal locations must be determined based on both the elevation and azimuth adjustment limitations. However, it should be noted that 360 azimuth adjustments can be carried out on pole-mounted terminals by loosening the mounting bracket hardware and turning the mount. The significance of these adjustments is discussed in Section 5.2, Final Alignment.

Figure 4-3: Transceiver Optimized for Side to Side Angles

Note: Views of transceiver are from underside of mounting bracket to show the

position the of gimbal mount. Details in gray are normally obscured from view.

Once the appropriate elevation and azimuth orientations have been determined, installation can proceed according to the following steps: 1. Attach the gimbal mount to the base of the transceiver using the four M8 x 1.5-cm stainless steel

bolts, lock washers, and flat washers that have been provided with the gimbal mount (see Figure 4-4). These four bolts should be tightened enough to fully compress the lock washers.

WARNING The four M8 gimbal bolts are attached to the body of the transceiver by means of tapped holes in the cast aluminum housing. These four bolts should be tightened only enough to fully compress the lock washers. Care should be taken not to over-tighten these bolts because of possible damage to the tapped threads.

WARNING The three 5/16-18 bolts supplied in the hardware kit cannot be interchanged with the M8 bolts supplied with the gimbal mount because they are of a different thread and will damage the radio housing tapped holes or the threads in the mounting bracket. The 5/16-18 bolts can be identified by markings on the bolt head. The M8 bolts have no markings on the bolt head.




Figure 4-4: Attaching the Gimbal Mount to the Base of the Transceiver

2. Carefully invert the transceiver and place it on the mount bracket, aligning the single hole on the base of the gimbal mount with the center hole on the edge of the mounting bracket.

3. Using one of the three stainless steel 5/16-18 bolts with flat washers and lock washers that have been provided with the hardware kit, attach the gimbal mount to the mounting bracket beginning with the center hole. Hand tighten the bolt so that it is secure but not so tight that the gimbal mount cannot be moved from side to side using the center bolt as a pivot point (see Figure 4-5).

4. Point the transceiver in the general direction of the opposing terminal and then using two of the remaining four holes in the mounting bracket that are visible through the slots in the gimbal mount (one for each slot), insert the remaining two 5/16-18 bolts with flat washers and lock washers and hand tighten until just snug. Do not tighten the bolts completely.

Figure 4-5: Attaching the Gimbal Base to the Mounting Bracket


4.4 Rough Alignment Once the Gigalink transceiver has been securely mounted, it should be visually aligned with the opposing terminal according to the following procedures: 1. Loosen both the gimbal base mounting bolts and gimbal side adjustment bolts slightly (see

Figure 2-9). 2. Roughly point the transceiver toward the opposing transceiver using the outside edge of the

transceiver housing to sight the opposing transceiver. 3. Once satisfied that both terminals are roughly pointed at each other, retighten the gimbal base

mounting bolts and the gimbal side adjustment bolts by hand just enough to hold the desired position.

4.5 Electrical Connections Once both transceivers in a link have been securely mounted and visually aligned, all power

connections can be made. The procedures for powering up the Gigalink are as follows.

1. Attach the DC power cord from the AC/DC power module securely to the base of the transceiver at the DC power interface (see Figure 4-6).

WARNING The electrical connection at the radio terminal must be made first in order to avoid arcing and possible damage to the radio terminal connector. Once the radio connection has been made, power may be applied to the circuit. Never Unplug or Connect the DC cable at the radio terminal with the AC circuit powered up as this may permanently damage the radio transceiver or power module.

2. Plug the AC cord from the AC/DC power module into the main AC power outlet and apply

power to the AC circuit. 3. Verify that the green LED on the AC/DC power module is illuminated.

Figure 4-6: Gigalink Network and Power Connections




4.6 Network Connections Once the power has been applied to the Gigalink terminal, network services can be connected. The procedures for making the network connections are presented below. 1. Clean the fiber connectors with the CLETOP fiber cleaner. 2. Connect the fiber optic cables by inserting the FC male connectors into the appropriate data

transmit and receive FC fiber ports (see Figure 4-6) taking care to align the index tab, and then tighten the outer collar of the connectors in a clockwise rotation (see Appendix B).

3. Route the opposite end of the fiber optic cables to the customers network switch room or rooftop patch box and insert the other end of each fiber optic cable into the transmit and receive switch ports, as appropriate.

Chapter 5 Setup and Operation 5-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

5 Setup and Operation The Gigamon software is the primary tool for the precision alignment of the Gigalink. Although it is possible for a single installer to perform final alignment, it is recommended that two installers, each with a cellular phone (or two-way radio) and a laptop with Gigamon software, be available to complete this task. If only one installer is available, final alignment will require travel between sites.

5.1 Gigamon Software Installation and Setup The procedures for installing and starting the Gigamon software are as follows: 1. Log on to the laptop computer with administrative rights and install the Gigamon software.

- Insert the Gigamon CD-ROM into the laptop CD-ROM drive. - If the Gigamon installation program does not start automatically, open the CD-ROM file

system directory and double-click the setup.exe file to run the program. - Follow the steps on the InstallShield Wizard. Terabeam recommends selecting the

default settings. If non-default settings are used, the instructions for removing Gigamon software may not apply.

2. Connect the laptop to an installed and powered terminal using the supplied 10Base-T adapter cable.

3. Double-click the Gigamon icon on the Windows desktop. The Gigamon Main window will open (see Figure 5-1). If more than one Ethernet adapter is detected, the Select Ethernet Adapter pop-up will open. Select an adapter and click OK.

Figure 5-1: Initial Gigamon Main Window

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4. On the Action menu, click Select. The Select Gigalink dialog box displays the information from the terminal to which the laptop is connected (see Figure 5-2). Click OK.

5. On the Action menu, select Align>Run. The Gigamon Main window will display continuously updated data from the selected Gigalink terminal (see Figure 5-3).

Figure 5-2: Select Gigalink Dialog Box

Figure 5-3: Gigamon Main Window (Run Mode)

Chapter 5 Setup and Operation 5-3 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

5.2 Final Alignment The most critical factor in achieving the desired reliability level is the precise alignment of the antenna during installation. Failure to align both terminals on the center (optimum) region of the receive area will greatly reduce the level of signal received and, in turn, the available fade margin. Likewise, if the Gigalink terminals are not mounted securely enough, misalignment from terminal movement due to wind or vibration could also result in intermittent operation. In run mode, the Gigamon software continuously updates the data in the Main window. The goal of precision alignment is to maximize or peak the receive level. Optimum terminal alignment is best accomplished by slight incremental adjustments at both terminal sites. Precision alignment is made in the vertical and horizontal planes (up and down, left and right) separately, one terminal at a time. Care must be taken not to over adjust the alignment. To facilitate precision alignment, tighten all adjustment bolts to allow movement only when the transceiver is grasped with a firm hand. Side lobes occur in both vertical and horizontal planes. If the link is nearly horizontal, and the rough alignment is close to the neutral position (see Figure 4-2), then additional vertical adjustment range can be achieved by removing the bottom elevation bolts in the curved slots of the gimbal mount. Once both vertical side lobes have been positively identified and the terminal aligned on the main beam (detailed in the steps below), the bolts can be re-installed and tightened to hold the alignment. If, after precision alignment, the threaded insert is not visible in the slot, the gimbal mount must be reversed to accommodate the proper alignment setting. It is essential that all four side mounting bolts be installed to preserve alignment accuracy in heavy wind. Final alignment is an iterative process that requires adjustments on both terminals. If only one installer is available, several trips between the terminals will be required to complete final alignment. 1. Install an active, modulated optical source such as a media converter sending idle patterns

(6221e/6421e [FE] only) or network equipment. 2. Beginning with Side A, loosen the gimbal side adjustment bolts slightly and raise the transceiver

slowly while observing the change in receive level on the computer screen. Typically, the receive level will rise, then fall and then rise again slightly on both sides of the optimum alignment as the receiver moves from the center main beam to the edge side-lobes of the radiation pattern. It is recommended that the technician move the alignment through the main lobe and into both side-lobes until returning to the center peak receive level of the main lobe.

3. When satisfied that the maximum receive level has been reached, tighten the gimbal side adjustment bolts to maintain the desired vertical alignment angle. The Gigamon software displays the highest receive level recorded as a magenta bar at the top of the receive level bar (see Figure 5-3).

4. Repeat this procedure for the horizontal alignment by slightly loosening the gimbal base mounting bolts and slowly moving the transceiver to the right and then to the left. Observe changes in the receive level monitor, identify both side-lobe areas, and return the alignment to the center peak position of the main lobe.

5. When satisfied that optimum alignment has been achieved, tighten the three gimbal base mounting bolts and the four gimbal side adjustment bolts to secure the desired position.

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6. Repeat Steps 1 through 4 on Side B (i.e., the opposing terminal) while maintaining the position of Side A. During the final alignment process, the receive level should continuously improve. The current receive power level is displayed by the blue receive level indicator that appears in the RX Power status bar. An acceptable clear air receive power would be a level above 400 to 450 A/D count. The magenta line indicates the maximum RX power level achieved during the current Gigamon session.

7. Repeat Steps 1 through 5 until power is optimized, typically about two to four iterations. 8. Close the Gigamon software on each side. The Save Gigalink Info in a File As dialog box will

open. Click Save to save the current Gigalink information in a text file for later review. This information can be used to evaluate ongoing transceiver performance.

9. Verify that the network equipment link light is illuminated. If the link light is not illuminated, verify that the Gigalink terminal is receiving the correct power according to Table 3-1. If necessary, interchange the transmit and receive fiber optic cables.

Once an acceptable receive level has been achieved on each Gigalink terminal, the established link should operate error-free. If a link cannot be established, or if an error-free link cannot be achieved, installers should refer to Chapter 8, Troubleshooting and Repair.

5.3 Gigamon Software Removal The instructions for removing the Gigamon software are as follows: 1. Insert the Gigamon CD-ROM into the CD-ROM drive. 2. Run setup.exe. 3. On the Welcome screen, click Remove. Click Next. The software will be removed. Alternately, open Add/Remove Programs on the Windows Control Panel, select Gigamon, and select the Change/Remove option.

5.4 Transceiver MIB The Management Information Base (MIB) for the transceiver is available on the CD-ROM in the SNMP/MIBS folder. Open the MIB text file and copy it into the management system. Additional information on the MIB and traps is provided in Appendix C.

Chapter 6 Gigamon Software 6-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

6 Gigamon Software 6.1 Overview

Gigamon is used to detect, monitor, and configure Gigalink terminals connected within the same network. Although Gigamon can detect and read the parameters of up to eight Gigalink terminals at once, the software can only monitor and configure one Gigalink terminal at a time. The Gigamon Main window displays status readings and parameter values for the active Gigamon terminal. Choosing a different Gigalink terminal as the active terminal is accomplished using the Action menu. This chapter provides descriptions of the status readings and parameter values displayed in the software, as well as procedures for monitoring and configuring Gigalink terminals using the Gigamon software. Features of the software include: Monitoring when Alignment is in run mode. In run mode, Gigamon reads the Gigalink

terminal parameters (specifically receive power and receive level) while updating the display. Configuring of network parameters and threshold parameters (e.g., SNMP traps). When a

parameter is set, it is stored in the EEPROM image of the Gigalink terminal. Saving of Gigalink information. A dialog box displays automatically when exiting the

Gigamon software.

6.1.1 Starting Gigamon Instructions for starting Gigamon are provided in this section. Refer to Section 5.1, Gigamon Software Installation and Setup, for instructions on installing the Gigamon software. 1. Power up the Gigalink terminal. 2. Before starting the Gigamon software, connect the field service laptop to the transceiver

using the provided 10Base-T adapter cable. 3. On the computer, double-click the Gigamon icon. The Gigamon software program will start.

6.1.2 Selecting an Ethernet Adapter The Select Ethernet Adapter dialog box automatically displays if Gigamon is started on a computer with multiple network adapters. The dialog box also can be opened by choosing Select Ethernet Adapter on the File menu. The dialog box shows the device names and descriptions for the network adapters detected by Gigamon. To recognize only one Ethernet adapter, choose the Ethernet adapter name and click Select. Click OK.

6.2 Main Window The Main window (see Figure 6-1) can display data for one Gigalink terminal at a time. When Gigamon is started, none of the Gigalink terminals in the network is selected. The first Gigalink terminal selected via the Action>Select command is the active Gigalink terminal in Gigamon. All data displayed in Gigamon are for the active Gigalink terminal.

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Figure 6-1: Main Window with RX Power in A/D Count

The components of the Main window are described below. MAC Address. The MAC address of the Gigalink terminal is one of the identification

parameters displayed in Gigamon. This unique address is set at the factory and cannot be changed. On startup, Gigamon does not recognize the MAC address of the connected Gigalink(s); the value Unknown is displayed in the MAC address field. In the Select Gigalink dialog box (accessed via the Action>Select command), the software attempts to retrieve the MAC addresses of up to eight Gigalink terminals connected to the network segment. In the Main window, the MAC address of the selected Gigalink terminal is displayed in the MAC address field.

Serial Number. This unique identification parameter is set at the factory and cannot be changed. RX Power Status Bar. This status bar represents the current level of receive signal strength.

When in run mode, Gigamon updates the RX Power status bar continuously. The blue indicator inside the RX Power status bar represents the current receive power level; the numeric value is displayed near the top of the indicator. The horizontal magenta line above the blue receive level indicator displays the maximum value reached during the current session. The numeric value of the maximum receive level is displayed just above the magenta line. As adjustments are made to the Gigalink alignment, the receive level decreases and increases. During terminal alignment, both terminals will need to be adjusted incrementally and iteratively until a peak receive signal level is achieved. A receive level in the green range of the RX Power status bar generally indicates that the receive level is strong enough to enable error-free operation. The peak receive level should remain fairly constant (within 10 points) during operation, except for an occasional decrease caused by rain attenuation.


Status Indicators. Four status indicators represent critical monitoring points within the Gigalink radio terminal. Three colors are used to display the status. Green indicates normal operation; red indicates abnormal operation; and black indicates that no terminal has been selected. Descriptions of the status indicators follow. - Synthesizer. Displays the lock status of the synthesizer circuit. This indicator should be

green. - PLL Lock. Displays the lock status of the Gunn diode oscillator PLL circuit. This indicator

should be green. - TX Link. Indicates the presence of an optical signal at the transceiver fiber interface from

the customer network. When this indicator is green, sufficient optical signal is present to perform alignment, and the fiber connected to the port is active. If the indicator is red, the radio is not receiving an optical signal from the connected network device.

- RX Link. Indicates the presence of a synchronized clock signal received from the remote terminal. During alignment, this indicator will cycle from green to red until a minimum alignment is achieved. Once alignment has been achieved, this indicator should remain green.

Status Bars. Five status bars display the operating voltages and Gunn current.1 The voltage levels include 6-volt, 15-volt, and -15-volt internal supplies, as well as the voltages for the Gunn oscillator tuning varactor diode (Vtune) and the current for the Gunn diode oscillator. The status bars are divided into three regions: safe (green), warning (yellow), and severe (red). The current values are indicated by horizontal blue lines on the status bars, with the optimum position being in the middle of the bar. The numeric values associated with these blue bars are listed in the text-based status display. When Gigamon is in run mode, each of these readings should fall within the green range. Yellow indicates performance may be degraded. Red indicates a fault has occurred and the unit may require service.

Text-Based Status Display. The text-based status display at the bottom of the screen provides summary data and errors. The link status and any errors are presented on the left side; summary data in the form of numeric values are presented on the right side.

Menu. The Gigamon menu structure is as follows: - File. The available File commands are:

Save Info As Select Ethernet Adapter Exit

1 Earlier-generation transceiver types may display the voltage level for a 24-volt internal supply rather than the voltage for Vtune.




- Settings. The Settings commands are: Factory Settings (disabled) SNMP

Network and Security Threshold and Trigger

- Action. The available Action commands are: Select Align

Run Stop

- Display. The available Display modes are: RX Power in A/D Count RX Power in dB (decibels)

- Help. The available Help command is: About Gigamon

The Main window can display the RX power values in relative numeric values or in decibels. By default, Gigamon displays receive level in relative numeric values. To change the numeric output, select RX Power in dB on the Display menu. If RX Power in dB is chosen, Gigamon converts the relative numeric values to a decibel scale and changes the display of RX Power accordingly (see Figure 6-2).

Figure 6-2: Main Window with RX Power in Decibels


6.3 Monitoring Gigalink Terminals Monitoring of Gigalink terminals is performed using the Gigamon Main window.

Note: Click Select on the Action menu to command Gigamon to detect the Gigalink terminals in the network. The Gigalink terminal selected will be the active terminal and its data will display on the Main window. Select Align>Run on the Action menu to continuously update the displayed data.

6.3.1 Selecting a Gigalink Terminal To select a Gigalink terminal, choose Select on the Action menu. The Select Gigalink dialog box will display, as shown in Figure 6-3. The dialog box lists the identification values of the active Gigalink and provides an interface to choose a different Gigalink terminal as the current selection. 2


To select a new active radio, choose the MAC address of the Gigalink terminal from the list. The serial number field updates automatically based on the MAC address selected. To make a Gigalink terminal the active terminal, select it in the Gigalink Radio MAC address list box and click OK. If an incompatible Gigalink transceiver is detected on the local subnet, its MAC address will display in the MAC address of incompatible device(s) list box.

2 Earlier-generation transceiver types may display the voltage level for a 24-volt internal supply rather than the voltage for Vtune.




6.3.2 Gigamon Run Mode In run mode, Gigamon continuously updates the display of receive level and other data from the active Gigalink terminal. To enter run mode, select Action>Align>Run. Run mode will continue until stopped or until the Select Gigalink dialog box is opened. To stop run mode, select Action>Align>Stop.

6.3.3 Saving Gigalink Terminal Data To facilitate regular maintenance of the Gigalink terminals, it is recommended that data be saved periodically. When exiting the Gigamon software, the Save Gigalink Info in a File As dialog box displays automatically. To manually open the dialog box, select Save Info As on the File menu. The Save Gigalink Info in a File As dialog box will display (see Figure 6-4). Any text file saved will include the parameters as shown in Figure 6-5 for the Gigalink terminals detected.

Figure 6-4: Save Gigalink Info in a File As Dialog Box

1. In the dialog box, select a location to save the text file. It is recommended that a Gigalink folder be created for storing the text files.

2. The default file name is Gigalink.txt. This File name should be edited by adding the terminal serial number in the format Gigalink .txt where XXXX is the 4-digit terminal serial number. Gigamon will then create the file and add data from future sessions to that same file without deleting existing data. This feature is an extremely important maintenance and troubleshoot tool as it provides a historical record of operational parameters.

3. The saved file will include a line of parameter values for each Gigalink terminal detected in a session. These values are space-delimited and can be copied into a Microsoft Excel spreadsheet. Each record is time stamped by date and time. A saved file may have several records for the same Gigalink terminal if the file saving format is consistent and data is appended to an existing file. Figure 6-5 shows sample data stored in a saved file.


Figure 6-5: Sample of Saved Gigalink Data

6.4 Configuring Gigalink Terminals Configuring a Gigalink terminal consists of specifying network and security settings, including the setting of thresholds for the sending of system-related SNMP traps.3 To open the Network and Security Settings dialog box (see Figure 6-6), select Settings>SNMP>Network and Security. This dialog box provides for setting SNMP network configuration for the active Gigalink terminal.

Figure 6-6: Network and Security Settings Dialog Box

3 Transceivers with firmware 0.9.1 or 0.9.2 do not support get and set operations.




The following network configuration values can be set in the Network and Security Settings dialog box. Click Apply once the values are defined to send the parameter values to the active Gigalink terminal. Gigalink SNMP Agent IP. This value is required for the SNMP monitoring software to request

SNMP get and set functions on the Gigalink terminal. Gigalink Subnet Mask. This required parameter works in conjunction with gateway IP to define

which IP address range will be local for the Gigalink terminal. Gigalink Gateway IP. This required parameter defines which IP address range will be local for

the Gigalink terminal. SNMP Manager IP 1. The IP address of the host acting as SNMP manager must be defined

before the Gigalink terminal can send SNMP traps to the host. SNMP Manager IP 2. Not supported in this release. Report Frequency. This required value specifies how often each radio terminal will send SNMP

trap packets to the SNMP manager. SNMP Get and Set Operations. The parameters community string, net, and mask ensure

security of the SNMP get/set operations. The Gigalink terminal will match the community string in the SNMP manager's get/set request packet and verify whether the SNMP manager's IP address is within the range defined by the values net and mask. If any of these validations fail, the Gigalink terminal will not respond to the request. Community string, net, and mask can be different for get and set operations. - Community String. The community string serves as a password for the SNMP get/set

operation. If a community string is set, the SNMP manager must provide that community string to the Gigalink terminal when sending a get or set request. When the Gigalink terminal receives a request, it will compare the community string. If the comparison fails, the Gigalink terminal will not send the requested parameter value(s) to the SNMP manager on a get request and will not change its parameter values on a set request. The community string must be alphanumeric and a maximum length of 16 characters.4

- Net. The net and mask parameters define the range of IP addresses acceptable to the Gigalink terminal when responding to SNMP get/set requests. The format is n.n.n.n where n is a digit from 0 to 255. For example, if net is defined as 10.0.0.0 and mask as 255.255.255.0, the range of IP addresses the Gigalink terminal will accept is 10.0.0.n where n is 1 through 254.

- Mask. This parameter works in conjunction with net in defining the range of IP addresses acceptable to the Gigalink terminal when responding to SNMP get/set requests.

4 The community string specified for transceivers with firmware 0.9.9 must be 11 characters or fewer in length.


6.4.1 SNMP Settings Select Settings>SNMP>Threshold and Trigger from the menu to open the Triggering Parameters and Setting Threshold dialog box (see Figure 6-7). These settings toggle on and off the SNMP trap parameters and define the threshold range for selected parameters. The Gigalink terminal monitor will send the SNMP host/manager an SNMP alert trap when an enabled parameter falls outside the set threshold range.

Figure 6-7: Triggering Parameters and Setting Threshold Dialog Box

To be monitored, the parameters on the left side of the dialog box (e.g., 6 volt, +15 volt, etc.) must have an associated threshold range if they are selected. The parameters on the right side of the dialog box (e.g., TX link, RX link, etc.) only need to be selected. No threshold can be defined for those parameters. Selecting (checking) a parameter will activate that parameter to be monitored against threshold ranges (or an on or off condition). Click the Apply button to write the settings to the Gigalink terminal. To return the values to their default settings, click Defaults and click Apply. A description of each parameter and the corresponding threshold values are provided below. For each threshold range, type an allowable value in the appropriate text box. Click Apply after the values to be monitored are specified. 6 Volt. A power supply voltage. The low threshold range is 5.6 to 6.1 V. The high threshold

range is 6.1 to 6.6 V. The nominal value is 6.1 V. +15 Volt. A power supply voltage. The low threshold range is 10.5 to 15 V. The high threshold

range is 15 to 19.5 V. The nominal value is 15 V. 15 Volt. A power supply voltage. The low threshold range is 10.5 to 15 V. The high threshold

range is 15 to 19.5 V. The nominal value is 15.0 V.




Vtune. Varactor tuning diode voltage. Wide variations in Vtune voltage from the initial reading may indicate a tuning problem with the Gunn diode oscillator source. The threshold setting and triggering options are not available for this parameter for this release.5

Gunn. The Gunn oscillator current. The low threshold range is 590 to 850 mA. The high threshold range is 850 to 1300 mA. The nominal value is 850 mA.

RX Power. The receive level. The low threshold range is 300 to 600. The high threshold range is 600 to 1000. The nominal operational value depends on link range.

TX Link. Transmit Link. If this parameter is selected, an SNMP alert trap will be sent if no data are received from the optical input.

RX Link. Receive Link. If this parameter is selected, an SNMP alert trap will be sent if no data are being received from the opposing Gigalink terminal.

PLL. If this parameter is selected, an SNMP alert trap will be sent if the PLL is unlocked. If PLL is unlocked, one of the terminals fundamental frequency-generating devices is operating improperly.

Synthesizer. If this parameter is selected, an SNMP alert trap will be sent if the Synthesizer, one of the Gigalink terminals fundamental frequency generating devices, is operating improperly.

5 Earlier-generation transceiver types may display 24 Volt with enabled Low and High boxes rather than Vtune.

Chapter 7 Monitoring and Routine Maintenance 7-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

7 Monitoring and Routine Maintenance Under normal operating conditions, the Gigalink terminal requires only periodic monitoring and little or no maintenance. It is recommended that the Gigalink terminal be inspected and monitored twice a year. Specific recommendations and guidance for monitoring and maintenance are provided below. In addition, individuals conducting the inspection should take note of any mechanical changes to the original installation (e.g., additional equipment mounted to the pole, evidence of equipment tampering, any apparent physical damage to the terminals, or potential obstructions in the link path). In addition, all mechanical and cable connections should be checked for integrity and tightness.

7.1 Monitoring Periodic monitoring of the Gigalink terminal should be conducted to ensure that the current performance parameters do not vary significantly (more than 20 percent) from those recorded during installation. Monitoring will require the use of a field service laptop that is equipped with a copy of the Gigamon software and a 10Base-T adapter cable (provided). It is also recommended that a record of the original installation parameters, as well any subsequent monitoring parameters, be available for comparison. The procedures for conducting monitoring are as follows: 1. Connect the field service laptop to the transceiver and run the Gigamon software. 2. Verify that the current operating parameters are within specification and comparable to the values

recorded at installation (see guidelines above).

7.2 Maintenance In locations that experience conditions of extreme dust or pollution, it may be necessary to periodically clean the transceivers radome (see Figures 2-1 and 2-2), which can be easily accomplished using a dry rag or cloth and ordinary glass cleaner. During cleaning, care should be taken to minimize the blocking of the transmission path in order to prevent link loss or high BER.

Chapter 8 Troubleshooting and Repair 8-1 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

8 Troubleshooting 8.1 Troubleshooting Guidance

The primary tool used for troubleshooting the Gigalink terminal is the Gigamon software monitoring utility. The following are the procedures for initiating a troubleshooting session. 1. Connect a field service laptop with the Gigamon software to the transceiver using the provided

10Base-T adapter cable (see Section 5.1, Gigamon Software Installation and Setup). If the Gigamon software has not been loaded on a laptop, refer to the instructions in Section 5.1.

2. Start up the computer and double-click the Gigamon icon. The Gigamon Main window will appear (see Figure 8-1).

Figure 8-1: Gigamon Main Window

3. Once the Main window appears, click Select on the Action menu. The Select Gigalink dialog box will appear (see Figure 8-2).

8-2 Chapter 8 Troubleshooting and Repair Terabeam Gigalink Field Installation and Service Manual




4. Once a Gigalink Terminal has been selected, select Align>Run on the Action menu. The Main window will be continuously updated with information from the Gigalink terminal (see Figure 8-3). If the Gigamon monitor utility fails to connect with the terminal, the error message Failed to communicate with Gigalink will be displayed. Possible causes for failed communication include an incomplete connection, incorrect version of Gigamon software, lack of power, or incorrect PC network interface card (NIC) selection (see Table 8-1).

Figure 8-3: Gigamon Main Window (Run Mode)

Chapter 8 Troubleshooting and Repair 8-3 Terabeam Gigalink Field Installation and Service Manual Document Number: 040-1203-0000 / Revision: C Release Date: 12/08/05 / Print Date: 03/03/06 Proprietary and Confidential

Table 8-1: Gigalink Installation Troubleshooting Guide Problem or Status Possible Causes Troubleshooting Steps

1. Physical connection between the laptop and the terminal is not complete.

1. Check the physical connections at both the laptop and transceiver interfaces.

2. Verify that the adapter cable is correctly configured. 3. Verify that the adapter cable is not damaged. 4. Verify that the laptop interface port is configured properly for

operation in Windows 2000. 5. Verify that the green light on the NIC port on the laptop is

illuminated. 2. Windows XP Operating

system not compatible with Gigamon software

1. Locate a laptop running Windows 2000 , or try an earlier release of XP

3. Gigalink terminal is not powered up.

1. Ensure that the terminal is powered up by verifying that the green LED on the AC/DC power module is illuminated.

Failed communication with Gigamon error message

4. Wrong Ethernet adapter (NIC) is selected.

1. Select File > Select Ethernet Adapter and confirm that the correct adapter has been selected.

1. Misaligned terminals (side lobe).

1. Connect to the remote terminal. 2. Verify that the Indicator and Status conditions are acceptable.

Monitor and record the status of the conditions. 3. Determine if the terminals are misaligned.

2. Rain event beyond expectations.

1. Determine if the area has recently experienced high winds or a rain event.

Link is down and: Receive Power: < 450 Synthesizer Lock: Green PLL Lock: Green TX Link: Green RX Link: Green

3. Obstruction to RF path. 1. Determine if water is sheeting on the antenna. 2. Determine if there is an obstruction in the RF path. 3. Acces

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