skyway -gb-x series 80 ghz gigabit ethernet ptp...

SKYWAY80 GHz Gigabit Ethernet

PTP Microwave Radio System

SKYWAY-GB-X SERIES 80 GHz Gigabit Ethernet


Installation Guide

August, 2016 Rev 1.0


GB-X Installation Guide

ii

Table of Contents

1 Introduction .......................................... 1

1.1 Purpose .......................................... 1

1.2 Prior Knowledge ............................ 1

1.3 Contact Information ....................... 2

2 Site Planning ......................................... 3

2.1 General .......................................... 3

2.2 Equipment Checklist ...................... 3

2.3 Line of Sight ................................... 3

2.4 Link Distance ................................. 4

2.5 Antenna Location ........................... 5

2.6 GB-X Cover Removal ..................... 5

2.7 Radio Ports and Interface .............. 6

2.8 SFP Options ................................... 7

2.9 SFP Modules Installation .............. 8

2.10 Cabling Considerations ................. 9

2.11 Power Supply Connection ............ 15

2.12 Grounding & Lightning ............... 16

2.13 Environmental .............................. 17

2.14 Cabling Diagram ......................... 18

3 Installation .......................................... 21

3.1 General ........................................ 21

3.2 Equipment Unpacking .................. 21

3.3 Installation Tools ............................... 22

3.3 Antenna Mount Installation ......... 23

3.4 Antenna and Radio Installation ... 23

3.5 Cable Installation......................... 26

3.6 Antenna Alignment ....................... 30

4 Radio Link Status Indicators ............ 41

4.1 Normal Operation ........................ 41

4.2 LED Functionality during Radio

Operation ................................................. 42

4.3 GB-X Cover Installation .............. 44

4.4 Connecting Network Equipment .. 45

4.5 Network Port Link and Statistics . 45

5 1+1 Protection and 2+0 OMT-80

Installation .................................................. 46

5.1 1+1 Protection Overview ............. 46

5.2 2+0 OMT-80 Overview ................ 48

5.3 Protection Product Configuration 49

5.4 Cabling Considerations ............... 50

5.5 Changing Polarity on 1+1

Protection Couplers ................................. 55

5.6 Antenna Mount Installation ......... 56

5.7 RF Coupler Assembly and Radio

Installation ............................................... 56

5.8 Cable Installation......................... 60

5.9 Protection Active and Standby

Radio Cabling – Ethernet Fiber Pairs,

Splitters, and SFPs ................................... 60

5.10 2+0 OMT-80 Fiber, Power &

Ground Cabling ....................................... 62

5.11 2+0 OMT Antenna Polarization

Adjustment................................................ 63

Appendix A Troubleshooting ................ 64

Appendix B RSSI Voltage Chart .......... 66

Appendix C Reset Button ...................... 67

Performing Hard Reset ............................ 67

Reset Button Functionality ....................... 67


1

1 Introduction

1.1 Purpose

The information in this guide is directed to persons who must perform or coordinate the tasks

associated with the process of installing wireless communication devices and planning

communication network applications.

Installation of a 1+0 non-protected GB-X system is described in sections 2 -5.

Installation of 1+1 Hot Standby Protection (Protection) and 2+0 Orthogonal Mode Transducer

(OMT-80) GB-X systems are described in section 5. The appendices provide additional information

for GB-X systems with any of these options.

1.2 Prior Knowledge

This guide assumes the operator has at least basic experience with, and an understanding of, wireless

technology; and some familiarity with configuring and operating networking equipment. Preferably,

the person installing this equipment fully understands the information covered in this guide, prior to

attempting these procedures.

DANGER, WARNING, and NOTE statements have been placed in various sections throughout

this document to alert personnel of possible traffic-affecting issues, and to provide additional tips

and helpful information. These statements should be closely observed.

Symbol Description

Indicates that personal injury can result if the user does not

comply with the given instruction.

A DANGER statement will describe the potential hazard, its

possible consequences, and the steps to perform to avoid

personal injury.

Indicates that equipment damage, process failure, and/or loss

of data can result if the user does not comply with the given

instructions.

A WARNING statement will describe the potential hazard, its

possible consequences, and the steps to perform to avoid

serious equipment damage.


2

Provides supplementary information to emphasize a point or

procedure, or provides a tip for easier operation.

1.3 Contact Information

Return Material Authorization

Should Solectek equipment have to be returned for repair or replacement, a Return Material

Authorization (RMA) number must be obtained in advance from Solectek. When returning

equipment, be sure to clearly indicate the RMA number on the outside of the shipping carton.


3

2 Site Planning

2.1 General

Before the start of any installation, a survey of the planned deployment site should be conducted.

The surveying personnel should be fully familiar with the details and requirements needed to

successfully install the GB-X radio system.

2.2 Equipment Checklist

The following lists suggested equipment the site survey team may require:

• Binoculars (not always required)

• WAAS-capable GPS location device

• Tape measure to determine distances for cable runs to ingress points

• Digital camera (not always required)

• Site survey report form to document and help assess site

• Signaling mirror (not always required)

2.3 Line of Sight

The GB-X 80GHz Wireless Gigabit Ethernet link requires Line of Sight (LOS) for proper operation.

Binoculars and spotting mirrors may be used to assist in the confirmation of LOS.

Path planning should include an investigation into future building plans that could block the LOS

path and other long-term incremental obstructions, such as tree growth. Intermittent obstructions,

such as aircraft at a nearby airport, should also be considered.

The following table lists near-field distances.

Table 2.3-1: Near-Field Distances

Frequency/Antenna Low Band High Band

80 GHz 1 ft. (30 cm) 17.84 ft. (5.43 m) 20.30 ft. (6.18 m)

80 GHz 2 ft. (60 cm) 71.36 ft. (21.75 m) 81.20 ft. (24.75 m)

The following table details the minimum F1 (First Fresnel) clearance required from obstacles in

order to ensure the radios will operate properly.


4

Table 2.3-2: Minimum Path Clearance

Path Length (meters)

Minimum F1 Clearance (meters)

Path Length (miles)

Minimum F1 Clearance (feet)

1000 0.58 0.62 1.9

2000 0.82 1.24 2.7

5000 1.3 3.10 4.3

10000 1.8 6.21 5.9

2.4 Link Distance

Measurement of the link distance is important in estimating the link availability and calculating the

expected Receive Signal Level (RSSI). This measurement can be performed using the latitude and

longitude coordinate readings from a Global Positioning System (GPS) device, which is placed near

the proposed locations of the antennas. Additionally, a GPS reading will be required in order to

comply with the FCC registration process.

The minimum link distance is dependent on the antenna sizes used along with the minimum allowed

transmit power of -5dBm, so as not to exceed the maximum received signal level of -26 dBm.


5

2.5 Antenna Location

The optimum location for the antennas must be determined. The ideal location should provide for

ease of erecting and mounting the antenna, as well as providing unimpeded LOS to the remote

location. The following factors should be taken into account:

• Type of mounting—fixed or roof-safe pole mounting.

• Location of fiber and DC power wiring at ingress/egress of the building.

• Length of cable runs.

• Confirmed earth grounding connection points.

• Obstructions, including allowances for tree growth.

• Accessibility of the radio mounting location.

• Accessibility of the site during and after working hours.

• Monopole towers are not typically stable enough for this application and should be avoided

There is a finite incline and decline range of the elevation

adjustment when installing the radio link.

Depending upon which Manufactures Antenna is used, the mount

can only be adjusted either +/- (25, 30, or 45) degrees from the

mechanical elevation adjustment.

2.6 GB-X Cover Removal

When the DC, RJ45, or SFP connections are required to be attached to the GB-X product, the Cover

will need to be removed and re-installed when connections are completed.

Conduit Port

Cord Grip – POE Port

Cover Screws

(6x)

BNC Port


6

2.7 Radio Ports and Interface

Item GB-X Interface Description 1 Handle to carry / lift

2 Ethernet Link Up Status LEDs

3 SONET/SDH/CPRI/OBSAI Status LED

4 LED to indicate whether Radio is powered by PoE or DC Power input

5 Alarm, Link-Up and TX (ATPC or Manual) Mode status LEDs

6 Ethernet RJ45 connector including Power over Ethernet interface

7 Ethernet SFP plug in cages – supporting SX, LX, or Copper SFPs

8 SONET/SDH/CPRI/OBSAI SFP

9 Protection port, communication between local protected Radios

10 Standard USB serial interface – local craft interface

11 Reset button

12 DC Power Input, +/-48 VDC

13 1” conduit entry gland for fiber and copper entry to ODU

14 Weatherproof RJ45 for copper entry (RJ45 + POE) or Protection

15 RSSI Test Voltage jack (BNC)

16 External grounding screw

17 Protective Vent


7

2.8 SFP Options

Ethernet/SONET SFP Interfaces:

GB-X contains up to 5 ports for Ethernet data:

o 1 x 10/100/1000Base-T copper port via RJ45 connector

o 4 x SFPs for 1000 Base-SX, -LX, or 10/100/1000 Base T interfaces

o 1 x SFP for SONET/SDH or CPRI/OBSAI.

SFP Type Wavelength Distance

Ethernet

Multi-mode

850nm Up to 300m w/62.5/125µm

MMF

Up to 500m w/50/125µm

MMF

Ethernet

Single Mode

1310nm Up to 10km w/9/125µm SMF

Copper N/A Up to 100m w/CAT5e, CAT6

or Cat6A

SONET/SDH &

CPRI

(Single Mode)

1310nm Up to 10km w/9/125µm SMF

Supports OC-12/STM-4 and

OC-48/STM16

SONET/SDH &

CPRI

(Multi-mode)

850nm Up to 300m on 62.5/125µm

MMF

Supports OC12/STM4 &

OC48/STM16 & CPRI 3072

5X line rate


8

2.9 SFP Modules Installation

The Small Form-factor Pluggable (SFP) is a compact, hot-pluggable transceiver designed to support

Gigabit Ethernet in the GB-X product. It is a popular industry format.

This product may only be operated with the SFP types provided by Solectek.

Figure 7-1: Four Ethernet SFPs and one CPRI/SDH shown installed.

A distinct detent

‘click’ will be

heard when the

SFP is fully and

properly inserted

CPRI/SDH SFPs

have a blue handle


9

2.10 Cabling Considerations

2.10.1 Fiber and Power

The installation site should be inspected to determine the run paths for the fiber cable and power

cable from the radio equipment to the termination point. Locations for roof penetration should be

identified. The routing and securing of all cables should conform to all applicable codes and

requirements. Depending on the likelihood of damage due to foot traffic or equipment movement,

cabling conduit may be required. The maximum cable run length, as specified for the equipment

being installed, must not be exceeded: refer to Table 2.10-1 for cable types and limitations.

The radio requires LC type connectors on multi-mode and single-mode fibers to properly connect

between the radio and the user’s network equipment. The network equipment end of the fibers

should be terminated with connectors that match the user’s network equipment fiber interface.

Table 2.10-1: Typical Gigabit Ethernet Fiber Cabling

Multimode Fiber Cable Length

Cable Type

Up to 300 meters 62.5/125 µm

Up to 500 meters 50/125 µm

Single-mode Fiber Cable Length

Cable Type

Up to 10 km 9/125 µm SMF

When planning the DC power cable run from the DC power source to the radio unit, it is required to

use 12 or 14 gauge (AWG) cable to ensure adequate voltage at the radio.

12AWG wire is rated up to 9 amps while the 14AWG wire is rated

up to 6 amps which will adequately support the GB-X.

The indoor and outdoor portions of the DC power cabling must conform to all respective indoor and

outdoor national and local electrical and building codes. Requirements may differ for the indoor and

outdoor portions of the cabling, and a grounded surge protector is normally required at the point

where the cable enters the building. The DC power cabling must consist of two 12 or 14 gauge,

stranded conductors, based on your required cable run length.

The maximum cable length is dependent on the power consumption of the radio. The GB-X has a

DC input voltage range of ±37.5 to ±60 VDC.

LC Fiber

Connectors


10

2.10.2 Integral PoE

The radio can accept DC power through the Copper 5 RJ45 connector to serve as a Power over

Ethernet (PoE) interface, and / or to the 2-pin DC/power connector (which bypasses the PoE

interface).

Use an outdoor (plenum) rated (weather-protected) Cat5e cable to connect the PoE enabled source to

the Copper 5 port on the radio via the RJ45 cordgrip gland on the radio. The cord grip gland shall be

tightened to (20 +/-2in.lbs.) if a cable is routed thru the cord grip gland.

The PoE connection can also be used as a power backup for the

DC power input. In this way, if a unit’s DC power fails, the unit

will switch to the PoE power source.

A service loop shall be created on the Cat5e cable and secured to a permanent location to ensure

sufficient cable length to enable the radio to be moved during service, prevent water from following

the Cat5e cable down to the PoE, junction box, or building entrance, and to prevent compromising

the Gland connection. A suggested length is 24 inches (60 cm) from the radio to the bottom of the

service loop.

The radio is provided with a pre-installed cordgrip gland and gland plug for a water-tight seal to the

radio.

If any cables are NOT routed thru the cord grip gland, the cord grip gland shall be sealed using the

cord grip plug by firmly pushing the plug inwards while tightening to (20 +/-2in.lbs.)The following

shows the cord grip gland assembled and disassembled.

Cord Grip Plug


11

2.10.3 Conduit

Conduit is recommended for enclosure of the fiber/copper and power cables as they enter the radio.

The conduit provides a water-tight seal to the radio, as well as any weather or physical protection

required by the cables.

The conduit should be flexible, waterproof, and non-metallic. An example of this is LIQUID-

TUFF™ UL Liquid tight Flexible Non-Metallic Conduit (Type LFNC-B) or equivalent.

Conduit should be 1 inch (25.4 mm) in diameter.


12

Installation

Conduit installation is done along with power and fiber/copper cabling installation as needed.

The radio is provided with a pre-installed liquid-tight connector for a water-tight seal to the radio.

The following shows the connector assembled and disassembled.

Once the power and fiber/copper cables are pushed thru the flexible conduit, the next step is to

prepare the grey conduit gland.

Before connecting the flexible conduit onto the grey conduit gland, unscrew the gray cap from the

gray threaded connector; remove the black rubber seal cap, yellow ferrule, and clear barbed barrel.

Slide the gray cap and yellow ferrule over the outer jacketed flexible conduit ensuring to keep the

same orientation when removed from the radio housing. At this point, you can discard the Black

rubber seal cap.

Press the clear barbed barrel fully into the end of the inner jacketed flexible conduit.

Insert the cables ends from the flexible conduit through the grey conduit gland and route to their

appropriate locations within the radio housing.

Carefully insert the flexible conduit into the grey conduit gland on the radio housing ensuring not to

pinch any of the cables routed thru the conduit.

Carefully slide the yellow ferrule over the outer jacketed flexible conduit into the grey conduit gland

on the radio housing while firmly holding the flexible conduit against the radio housing connector

port.

Next, slide the gray connector cap onto the grey conduit gland and slowly hand tighten the gray cap

while firmly holding the flexible conduit against the radio housing connector port.

Gray Cap

Black rubber seal cap

Yellow Ferrule Clear Barbed Barrel

As

compresses

barbed barrel

A service loop shall be created on the


the conduit down to the junction box or building entrance, and to

connection. A suggested length is 24 inches (60 cm) from the radio to the bottom of the service

loop. The opposite end of the conduit is inserted into the cable tray if on a tower or onto the NEMA

or junction box.

13

the grey connector cap is tightened fully, the

compresses against the flexible conduit outer sleeve over the clear

barbed barrel sealing the assembly for water ingress.

ervice loop shall be created on the Conduit and secured to a permanent location


down to the junction box or building entrance, and to prevent compromising the Gland


The opposite end of the conduit is inserted into the cable tray if on a tower or onto the NEMA


the yellow ferrule

flexible conduit outer sleeve over the clear

sealing the assembly for water ingress.

and secured to a permanent location to ensure


prevent compromising the Gland


The opposite end of the conduit is inserted into the cable tray if on a tower or onto the NEMA


14

The first tie provides the first anchor and strain relief. Gentle curves provide the necessary radius for

the fiber to minimize signal loss and eliminate sharp angles lessening voltage potential from being

induced during lightning storms.

With a short conduit, the radio's opening has been moved further away and moisture is unable to

migrate into the radio.

Tower Installation

Secure the conduit with suitable braces to ensure long-term performance. The total length of the

conduit should be a minimum of 10 feet (3 meters), but the length required to reach the cable tray is

site-specific.

Once the cables are installed, seal the conduit opening for additional protection from insects using

amalgamated tape or sealant.

All cables used should be outdoor-rated.

Below the conduit, secure the cables approximately every 1.6 feet (1/2 meter) onto the tower's cable

tray. Running the cables to the cable tray is recommended to provide additional environmental

protection.

Roof-Top Installation

Secure the conduit with suitable braces to ensure long-term performance. Terminate the network end

of the conduit into a NEMA enclosure or junction box. Terminate the conduit at the NEMA

enclosure by either:

• Drilling a hole in the bottom of the NEMA box for the fitting; or

• Removing one of the built-in conduit punch-outs if provided on the NEMA box.

Use amalgamated tape or sealant to create a watertight seal at that junction.


15

2.11 Power Supply Connection

The GB-X radio power input connector is powered off the end customer-supplied “+” or “-”48VDC

power source.

The end customer shall ensure they have a method of disabling the

DC Power to the Radio prior to connecting or disconnecting any

Voltage lines to the Radio.

On the radio end, no connectors are required; just strip the insulation off the DC power wires ends

and press the DC power wires into the connector while observing the correct polarity. Once pressed

in, the wires are locked in place.

As an alternative to the 2-pin DC/power connector, use the Copper 5 RJ45 connector for PoE.

Connect the PoE enabled source to the Copper 5 port with an outdoor-rated Cat5e cable. This can

also be used to back up the 48VDC power if a unit’s DC power fails. The 48VDC power acts as the

primary source, and if a power failure occurs, the unit switches to the PoE power source.

The DC power input will always override the Power Source

Equipment (PSE) for the PoE. If the DC power input fails, the

PSE/PoE detects the power loss and activates the PSE to power

the system. Both sources must be connected for this operation to

work as described.

To remove the DC

power wires, simply

press a flat blade

screw driver into the

slots on the

connector and pull

the wires upward to

remove.


16

2.12 Grounding & Lightning

Proper grounding of the outdoor equipment reduces

electromagnetic interference, provides lightning protection, and

protects against electrical discharge.

Using improper techniques in lightning-prone geographic areas

may pose a danger to local personnel.

The source and connection points for the building-to-earth

ground in the vicinity of the antenna location should be

determined.

Customers can add addition surge protection to the DC electrical cables by adding a surge

suppressor. The surge suppressor should be installed before entry point where the DC electrical

cables exit/enter the building. Please review your local electrical codes.

Solectek does not supply external surge suppressors. However, a suggested surge suppressor is the

Smith Power’s Transtector DC Surge Protector, part number 1101-1110, shown below. Pole-Mount

Bracket: 1000-1164 sold separately.

For more information on recommended accessory devices and

kits, contact Solectek Sales.


17

2.13 Environmental

The structure to which the equipment will be mounted should be adequate to bear all wind and

weather conditions. The environmental conditions at the location must conform to the operating

environment specified for the equipment.

Operating Temperature: -33ºC to +55ºC (-27ºF to +131ºF) per EN 300 019-2-4

Humidity: 100% all-weather operation

Operating Altitude: Up to 4,500m (14,764ft)

Water Ingress: IP66

Wind Loading: 90 MPH operational, 125 MPH survival


18

2.14 Cabling Diagram

Figure 2.14-1 details the equipment and cabling found on a typical installation of Solectek’s GB-X

radio equipment. Use of the Copper 5 RJ45 connector is optional and is not required for Web

interface access or for normal data traffic operation.

Figure 2.14-1: Simple Network Diagram


19

Figure 2.14-2 details the equipment and cabling found on a PoE installation of Solectek’s GB-X

radio equipment. Only one outdoor-rated Cat5e cable is required per radio to handle power and data..

Figure 2.14-2: Simple Network Diagram - PoE


20

Figure 2.14-3 details the equipment and cabling found on an installation of Solectek’s GB-X radio

equipment with dual power with 48VDC as the primary power source and PoE as hitless power

backup.

An outdoor-rated Cat5e cable is required per radio to handle PoE backup. Recommended cable is

OSP Broadband Cat5e, manufactured by Superior Essex or equivalent Cat5e cable.

Figure 2.14-3: Simple Network Diagram – PoE as Power Backup


21

3 Installation

3.1 General

It is recommended that installation personnel read this section in its entirety prior to installing the

Solectek system. During a particular phase of installation, the user may refer directly to the

applicable subsection.

The Installation section is comprised of the following subsections covering the procedures and

guidelines for installing the Solectek radio system.

3.2 Equipment Unpacking

The radio system equipment will arrive in four boxes—two boxes for the two antenna and mounting

kits and two boxes containing the radio unit (one low-band and one high-band). Locate the correct

box (low band or high band) before beginning installation by checking the label on the outside of the

box or on the radio itself. It is recommended that the shipping cartons and packing materials be

retained in the event that it is necessary to return any equipment.


22

3.3 Installation Tools

The following tools are required for installing the radio and the antenna:

• Torque Driver (0-25 in. lbs.) for GB-X unit for the following items:

� Open-end wrench 1/2 (Cover Screws)

� Open-end wrench 8mm or 5/16 (Chassis Earth Ground Connection)

� Open-end wrench 7/8 (Cord Grip Connector)

• Open-end wrench 9/16 inch (Radio to Antenna Screws)

• Open-end wrench 1/2 inch (Various locations)

• Ratchet with 6inch extension and 9/16 inch deep socket (Radio to Antenna Screws)

• Wire stripper/cutter/crimp tool (10-16 gauge)

• Electrical tape

• Fish tape (draw wire) for pulling cable

• Cable tie wraps

• Hand-held digital voltmeter (DVM) with standard banana-plug receptacles

• Allen wrench 3/16 inch (depending upon Antenna Manufacturer, maybe be supplied with

Antenna)

• Signaling mirror (optional)

• DOW Corning 111 Valve Lubricant & Sealant or equivalent (for antenna O-ring gasket)


23

3.3 Antenna Mount Installation

For antenna mount installation instructions, please refer to your antenna manufacturer’s installation

guide to perform the following:

1. Assemble the antenna mounting hardware.

2. Mount the antenna to the mast.

Read these instructions before beginning installation. Caution

should be used. Qualified persons experienced with antenna

assembly and installation are required for installation.

Solectek disclaims any responsibility or liability for damage or

injury resulting from incorrect or unsafe installation practices.

The antenna has been formed to a very close tolerance parabolic

shape. Careful handling and assembly is required to avoid

denting the reflector, which would degrade antenna performance.

When using the left-side radio mount position, the antenna gets

rotated by 180 degrees. The drain hole must be open at the

bottom and closed off at the top of the antenna to prevent water

ingress.

3.4 Antenna and Radio Installation

It is critically important during installation to ensure the

radios on each side of the link are in the same polarization

(horizontal-horizontal or vertical-vertical). A link that has a

radio on one side of the link set in the horizontal polarization,

and the other side of the link set in the vertical polarization,

will not operate properly.

It is also critically important that a high-band radio is paired with

a low-band radio to ensure the system will operate properly.

Prior to installation, check each radio to verify one is a high-

band and the other is a low-band version. The label on the radio

will indicate the band (blue for high or red for low).


24

Be sure to remove the protective plastic cap from the antenna port before installing it:

To prevent the O-ring gasket on the antenna port from getting brittle, and to allow an easy

connection to the antenna, sparingly lubricate the O-ring with DOW Corning 111 Valve Lubricant

& Sealant or equivalent.

Remove the

plastic cap

Lubricate

O-ring.

1. Install the antenna and radio:

The first letter of the designated polarization is stamped onto each unit to identify orientatiwhen the polarity mark is positioned on top:

“H” for horizontal polarity.

“V” for vertical polarity.

2. The units have four (4) captive 3/8attached to the radio housing. Verify these bolts with lock and flat washer

It is important that all four bolts are tightened evenly (hand-tight, 1 to 2 turns eachlock washer is flattened).

Then, use a 9/16-inch open-end wrench to tighten and secure the bolts.

3. Course align azimuth: refer to your antenna manufacturer’s installation guide.

25

antenna and radio:

The first letter of the designated polarization is stamped onto each unit to identify orientations when the polarity mark is positioned on top:

Figure 3.4-1:Unit mounted in horizontal polarity

four (4) captive 3/8-16 bolts hed to the radio housing. Verify these

bolts with lock and flat washers are in place.

It is important that all four bolts are tightened tight, 1 to 2 turns each, until the

end wrench to .

Figure 3.4-2:Unit mounted in vertical polarity

: refer to your antenna

manufacturer’s installation guide.


:Unit mounted in horizontal polarity

mounted in vertical polarity

3.5 Cable Installation

3.5.1 Fiber Cabling

1. Install the desired SFP modules in the radio with duplex MMF or SMF fiber from the radio to the

network termination equipment (switch or router with 1000Base

looped around the inside of the enclosure to provide strain

The connectors on the radio end of the fiber require a duplex LC connector; the connectors on

the switch/router end should mate to the network equipment.

2. Connect fibers at the network equipment.

3.5.2 Ground Cabling

IT IS VERY IMPORTANT TH

COMPLETED BEFORE APPLYING ANY DC VOLTAGE TO

THE UNIT.

The required method for grounding the radio unit is to ground the mast to a ground source, because

this provides the largest grounding surface contact possible.

Also, attach an 8 AWG (solid) copper (or equivalent) ground wire to the ground stud on the Radio

and secure the other end to a known earth ground.

procedures.

Attach the ground lug to the m5x.8 grounding screw on the radio chassis

+/-2in.lbs.) using an 8 mm (5/16 inch) wrench.

26

Install the desired SFP modules in the radio with duplex MMF or SMF fiber from the radio to the

network termination equipment (switch or router with 1000Base-X port). The cable should be

looped around the inside of the enclosure to provide strain relief.


the switch/router end should mate to the network equipment.

Connect fibers at the network equipment.

IT IS VERY IMPORTANT THE GROUND CABLING


THE UNIT.


this provides the largest grounding surface contact possible.

lid) copper (or equivalent) ground wire to the ground stud on the Radio

and secure the other end to a known earth ground. Refer to local regulations for proper grounding

Attach the ground lug to the m5x.8 grounding screw on the radio chassis and securely

using an 8 mm (5/16 inch) wrench.


Install the desired SFP modules in the radio with duplex MMF or SMF fiber from the radio to the

X port). The cable should be


E GROUND CABLING SECTION IS



lid) copper (or equivalent) ground wire to the ground stud on the Radio

Refer to local regulations for proper grounding

and securely tighten to (15


27

3.5.3 Power Cabling

1. Ensure the DC wire used is two-pair 12 gauge or 14 gauge, and ensure the cable length is

appropriate for the power consumption of the radio.

2. Install the DC power cable and attach it to the primary power source. Do not connect the power

wires to the radio at this time. If a PoE will not be used, then connect the DC Input voltage

lines (two-pair 12 gauge or 14 gauge wires) to power up the Radio.

3. Inserting a small screwdriver or blade tool into the slot on the DC connector will hold open the

connectors for wire insertion. (The tool can also be used to hold open the connector to release

the wire.)

The fiber and power cables are inserted through the straight-

through fitting before the 1 inch flexible conduit is connected to

the fitting. Ensure that the cables do not get pinched when the

conduit is pushed onto the fitting. The cables should be looped

around the inside of the enclosure to minimize tension on the

cables when connected to the radio and to maintain proper bend-

radius of the fiber cable. See Figure 3.5.3-1: GB-X power and

data cables with service loop for strain relief and proper fiber

bend radius

If only the 1 inch conduit fitting is used (and the cordgrip

RJ45gland is not used), the cordgrip opening should be sealed

with the included plug. Reference Section 2.10.2 for details.

Figure 3.5.3-1: GB-X power and data cables with service loop for

strain relief and proper fiber bend radius


28

3.5.4 PoE Cabling

1. Ensure the PoE cable used is outdoor (plenum) rated (weather-protected) Cat5e, and the cable

length is appropriate for the power consumption of the radio. Maximum Cat5e cable run is

100m/300ft.

2. Route the Cat5e cable through the cordgrip on the GB-X unit and attach it to the port labeled

“(0/5) Copper / PoE”. Do not connect the PoE Cat5e cable to the radio at this time.

3. Secure the PoE Injector at base of tower or near building entry. Terminate the site ground

cable to the PoE Injector’s grounding. Then apply the DC input voltage lines to the PoE

injector to power up the Radio.

4. Hitless redundant power capability, when both power inputs connected (PoE & Auxiliary).

5. To remove the PoE cables, reverse the order noted above.

Figure 3.5-4: Unit illustration, mounted in pole near building entry

For PoE applications, use the Solectek-supplied seal to cover the

opening of the conduit fitting if not used. Reference section 2.10.3

for details.

When both PoE and Auxiliary power is used in redundancy, The

auxiliary power will always override the PoE power.


29

3.5.5 10/100/1000 Base-T Surge Suppressor

The GB-X radio internally contains an Ethernet-rated surge suppressor within the RJ-45 copper

interfaces of the unit.

A surge suppressor should also be used at the point where the cable enters a building or is connected

to other outdoor equipment that does not already contain surge-suppression hardware.

If the 10/100/1000Base-T port is permanently connected to other network equipment (not normally

required), it should be connected using Cat5e UTP cables rated for the outdoor and/or indoor

environments where the cables will be run.

Failure to install surge suppression hardware on the UTP cable

at the building’s point-of-entry can expose the radio and network

equipment to electrical surges due to lightning strike or other

phenomena. Such electrical surges could cause irreparable

damage to the radio and/or network equipment not covered by the

manufacturer’s warranty.


30

3.6 Antenna Alignment

3.6.1 Initial Equipment Checks and Configuration

1. Finish the installation, as described in the previous sections.

2. Inspect the radio polarization. Confirm that the polarity matches the site design and license. Both

ends of the link must have the same polarity.

3. Connect DC power or PoE to the radio. If DC power is connected, verify that the Power LED is

lit solid green. If PoE is connected, verify that the PoE LED is lit solid green.

4. Log into the GB-X Web interface and go to the Radio Link page. Configure the following

parameters in the following order:

• Link ID – Set to a value that matches at both ends of the link.

• Rate – Set to the desired channel bandwidth and modulation per the link design.

• Transmitter – Set to Enable.

• Transmit Channel – Set the channel to the frequency specified in the link design or

site license.

• ATPC Mode – Set to Manual. The Max TX Power parameter will then be

configurable. This also prevents the transmitter from adjusting while the far-end

receiver is being aligned.

• Max TX Power – Set to the maximum allowable power specified in the site design or

site license.

For short links where the calculated RSSI exceeds -20dBm, the

RSSI voltage enters the un-calibrated region making it difficult to

find the peak RSSI voltage.

The solution is to lower the Max TX Power to -5 dBm or to a

calculated level in which the far-end target RSSI equals -40 dBm.

• Adapt Rate (Available only if licensed) – Set to Disable. This prevents unintentional

switching during alignment.

5. Click the Submit button in the screen to apply the changes.

6. Repeat steps 1 through 0 on the far end of the link.


31

3.6.2 Prepare to Coarse-Align Radio

1. Using the graph in Appendix B, determine the target RSSI voltage based on the target receive

level in dBm established by the link design or site license.

The target RSSI should be adjusted accordingly if the transmitter

power was reduced for alignment purposes due to short path

distance.

2. Remove the protective cover from the BNC connector on the radio.

3. Connect the RSSI test-lead cable to the BNC connector and place the voltmeter with readings in

view.

4. Insert the Ground RSSI banana plug into the voltmeter.

The voltage may be fluctuating; in this case, note the

maximum value seen.

5. Set the meter for DC volts and place on the x20 scale.

6. If the far end TX is in ATPC mode during alignment, an unstable RSSI reading will occur at the

local RX since the far end TX power will be automatically adjusting at the same time. Therefore,

the far end Radio must be set to manual TX power setting for local RX alignment rather than

ATPC mode.


32

7. Confirm that Radio’s Manual TX power setting is engaged by confirming that the Alignment

Mode LED is blue and blinking.

If the Alignment Mode LED is not blue and blinking, the radio may be put into Alignment mode

by pressing the Reset button on the radio and holding for approximately 1-2 seconds. After

alignment, ATPC mode can be engaged again by pressing the Reset button on the radio and

holding for approximately 1-2 seconds.

8. Reference your antenna manufacturer’s installation guide for an illustration of the antenna-mount

bolts and their purpose.

9. Repeat steps 2 to 8 on the far-end radio.

Reset

Button

Flashing

Blue LED


33

3.6.3 Coarse-Align Radio Antennas

1. Using the graph in Appendix B, become familiar with how the RSSI voltage corresponds to

stronger or weaker Receive Signal Strengths.

2. Set the radio terminal to the pre-defined azimuth if available. If not, use binoculars or a signal

mirror to locate the far-end radio location.

3. If you can see the far-end radio terminal, estimate the alignment visually and tighten the pole

mount brackets with the fine-adjustment bolt set to the middle of the adjustment range.

4. Ensure the horizontal adjustment bolts are snug; only tighten the bolts one quarter of a turn.

5. Slightly rotate each antenna up or down for best vertical alignment, and left or right for best

horizontal alignment, by finding the strongest RSSI voltage reading.

6. To ensure that the antennas are not aligned on a side lobe, they must be rotated about 7 to 10

degrees on each side of the perceived alignment center to ensure that the true strongest RSSI

voltage is found.

The width of the center beam is only 0.4º (2 foot antenna) or 0.9º

(1 foot antenna), and the first side-lobe beam is only 1 degree off

from center.

Set the antenna in the position resulting in the strongest RSSI voltage reading.

7. Repeat these steps on the far-end radio.


34

3.6.4 Fine Adjustment

1. Slightly loosen the azimuth fine-adjustment bolt.

2. Pan the antenna slowly from left to right and capture the strongest RSSI voltage peak.

3. See Figure 3.6.4-1 below to help guide you in obtaining the strongest RSSI voltage reading.

4. Tighten the azimuth adjustment bolts.

5. Loosen the two bolts holding the antenna elevation position to the antenna mount.

6. The elevation fine-adjustment bolt is not designed to be tightened: use the hex nut to fine-adjust

(and course-adjust) the elevation (vertical position) to the highest RSSI value.

7. While monitoring the voltmeter, begin to align the vertical position of the antenna to obtain the

strongest RSSI voltage.

8. Once completed, this fine adjustment must be repeated at the remote end of the system if you

have not obtained the target RSSI voltage for the given path distance.

9. If you have not obtained the target RSSI voltage for the given path distance (or you want to

further improve it), re-align the antenna, go back to the original site you started with, repeat steps

1-8, and re-align again. See Figure 3.6.4-1, below, of a conceptual illustration of the antenna

beam to keep in mind while you perform a re-alignment.

10. Once again, the very narrow beam width of these antennas (0.4º and 0.9º) makes it necessary to

completely tighten the bolts of the azimuth adjustment while adjusting the elevation, and vice

versa.


35

Figure 3.6.4-1: This illustration is a conceptualized cross-section of a beam to exemplify a horizontal

RSSI voltage reading against relative locations with an assumed fine-tuned vertical

position. Keep in mind how narrow the beam is at 80GHz; the 3dB beam width for

80GHz is 0.9º for a 12 inch antenna and 0.4º for a 24 inch antenna.

Target Voltage

Possible

“First Try”

Common

“First Try”

Below Target

Voltage

Possible

“First Try”

Center Location

Possible

“First Try”

Main Beam

First Side-lobe

Second Side-lobe(sometimes undetectable)

Nulls


36

3.6.5 Locking Down Radio Antennas

1. After the target RSSI voltage has been achieved, ensure all bolts are tightened evenly and

securely, and ensure the RSSI voltage remains unchanged after tightening is completed.

2. Always evenly tighten the bolts in small fractions at a time to ensure minimum change to your

completed alignment.

3.6.6 Final Configuration

1. Log into the GB-X Web interface and go to the Radio Link page.

2. Set the Power Output level to the value specified in the link design or site license and click

Submit to apply the changes. This should only be required if the power level was intentionally

reduced for alignment on short distance paths.

3. Go to the Maintenance page and click the Commit Configuration button.

4. Perform steps 1 – 3at both ends of the link.


37

3.6.7 Roof-Mount Antenna Stability Test

This procedure is recommended for roof-mount radio systems to

verify that the structure used for mounting the radio antenna has a

limited amount of sway.

After the radio system has been fine-tuned and locked down to the target RSSIs, perform the

following procedure to test the minimum amount of sway allowable for a fully installed radio system

on roof-mount applications by applying a pull force of 50 pounds at the antenna location.

A luggage belt and a luggage weight scale are required for this test:

Luggage Belt: Luggage Weight Scale:

Refer to the illustrations below while performing the procedure which follows.

Pull until scale reads 50 pounds.

Monitor voltage.

1. Place the luggage belt around the mast just above the antenna mount.

2. Connect the luggage weight scale to the luggage belt.

3. Record the RSSI voltage displayed on the voltmeter connected to the radio. This should be the

target RSSI value.

4. While monitoring the voltmeter, pull the luggage scale in any direction until the scale indicates

50 pounds and record the RSSI value once 50 pounds is reached.

5. Compare the RSSI value recorded during the pull test with the target RSSI value. The difference

between the two values should be less than +/-150 mV for a GB-X with a 1 foot (30 cm) antenna

and less than +/-75 mV for a GB-X with a 2 foot (60 cm) antenna.


38

6. Remove the test cable from the radio and replace the BNC connector cover.

Failure to re-install the BNC Connector cover could cause

environmental issues with the Radio which would not be covered

under the manufactures warranty.

7. The installation is now complete.

The most important alignment technique is care and patience! It is

recommended that these models be aligned with personnel present

at both ends of the link, and the installers should allow 90 minutes

to optimally align these units.


39

3.6.8 Clear Both Radios from Alignment Mode

1. ATPC is optional but not required.

2. Therefore, if the link design calls for the use of ATPC then Alignment mode must be disabled so

that the transmitter power is allowed to adjust up and down.

3. Press the reset button for approximately 1-2 seconds and verify that the Alignment Mode LED

on the radio turns from “flashing blue” to off at both ends of the link.

3.6.9 Verify Link Operation

Please refer to the GB-X Configuration Guide for operating

instructions for radio’s Management Agent (Web interface).

1. Open the Status page from the unit's Web interface and ensure the Radio TX and RX is operating

at the expected modulation and rate for both radios

2. Configure the VLAN to no port isolation (in-band) per the configuration guide.

3. Perform a continuous ping test: Open two command-line windows, and ping the local and remote

GB-X Web interface. Factory default IP addresses are: 192.168.0.1 for low-band and

192.168.0.2 for high-band. Use the –t in the ping command to make it continuous with the

command: ping –t 192.168.0.1 or ping –t 192.168.0.2.

Reset

Button LED Off for

ATPC Mode


40

4. Perform the continuous ping test at both ends. Wait a few minutes; ensure you are getting

responses from the local and remote Web interface.

5. Go to the Statistics page and reset the statistics for each radio end. There will be a small amount

of traffic from the continuous ping test.

6. Review the Statistics page results; ensure packets are being transmitted and received, and there

are no excessive error conditions.


41

4 Radio Link Status Indicators

4.1 Normal Operation

During normal operation, the following conditions should exist at the radio:

• The Power LED or the PoE LED should be lit - solid green.

• The Alignment Mode LED should be OFF.

• The Radio Link LED should be lit—solid green.

• The Alarm LED should be lit—solid green.

The GB-X system does not require periodic maintenance. However, each end of the link should be

periodically inspected for visible damage or excessive accumulation of dirt on the antenna’s radome.


42

4.2 LED Functionality during Radio Operation

The following lists LED functionality during radio operation.

Table 4.2-1: LED Functionality During Radio Operation

LED Indication Condition

Alarm Solid green No alarms

Flashing green Protection standby unit on, no alarms

Solid yellow Minor alarm. Can be one of following conditions:

- Modem temperature below -20°C or above 75°C

- Transmitter is muted, by configuration or maintenance condition

- Link ID mismatch

Solid red Critical or major alarm. Can be one of following conditions:

- Field Programmable Gate Array (FPGA) not programmed

- Modem input voltage out of spec

- TX Intermediate Frequency (IF)/millimeter wave (mm-wave) local oscillator (LO) lock failure

- RX IF mm-wave LO lock failure

- At least one power supply on IF board not operating properly

Flashing red Protection standby unit in alarm state

Radio Link Solid green Radio link up, error free

Solid yellow Post FEC errors in radio link

Off Radio link down

Alignment Mode Off ATPC is enabled (Automatic mode)

Flashing Blue ATPC is disabled (Alignment/Manual mode)

Flashing Red Can be one of the following:

- When the Reset pushbutton is pressed and held down for approximately 21-30 seconds or until Alignment Mode LED flashes Red, then released in this state, configuration is returned to default settings, and hard restart of GB-X-UHA Web interface is performed.

- In Protection, the active unit is in Alignment mode.

Solid yellow In Protection, always on standby unit.


43

Table 4.2-1: LED Functionality During Radio Operation

Solid red When Reset pushbutton is pressed and held down between 11-20 seconds, Alignment Mode LED turns solid red. Pushbutton release in this state perform shared restart of the GB-X Web interface with current configuration settings maintained.

Power Off No or inadequate main power to radio, or unused or disconnected.

Solid green Adequate main power to radio

PoE Off No or inadequate PoE to radio, or unused or disconnected.

Solid green Adequate PoE to radio, or main power failure.


44

4.3 GB-X Cover Installation

When the internal connections are completed and the product is fully operational and antenna is

aligned, the cover shall be re-installed using the six screws with EPDM washers.

First hands tighten the screws attached to the lanyard cable followed by a crossing pattern until all

six screws attached to the radio are seated.

Then tighten the six screws to 7 foot pounds to ensure they are sealed properly.

Conduit Port

Cord Grip – POE Port

BNC Port

Cover Screws

(6X)


45

4.4 Connecting Network Equipment

The networking equipment that will be connected to the GB-X system should be pre-checked to

ensure it operates properly back-to-back over a wired connection. Once this has been confirmed, it

will save troubleshooting steps if a traffic problem arises after the radio is installed and connected to

the network equipment.

The 1000Base-X interfaces are factory pre-configured for Auto-Negotiation (AN) and flow control

enabled. Auto-negotiation and flow control can be disabled via the GB-X Web interface. The

networking equipment interfaces must be set to match the Radio’s interface settings to allow for

proper traffic flow.

The GB-X radios support all standard Ethernet frame sizes up to

10,240 bytes for un-tagged or 802.1q VLAN-tagged frames.

4.5 Network Port Link and Statistics

1. Verify that the port LED on the Radio illuminates green when the cable from the network

equipment is connected:

2. Go to the Statistics page and reset the statistics for each radio end.

3. Review the Statistics page results for the ports and observe TX and RX packets are flowing and

no excessive error conditions are observed.

Please refer to the GB-X Configuration Guide for operating

instructions for radio’s Management Agent (Web interface).

Port

LED


46

5 1+1 Protection and 2+0 OMT-80 Installation

This section describes installing a system with one of the following redundancy options, which

consists of two radios mounted on an outdoor unit (ODU) coupler, with one antenna, on each side of

the link:

• Unequal-Loss Couplers for 1+1 Hot Standby Protection (Protection) – This coupler is

recommended for Protection links.

• 2+0 Orthogonal Mode Transducer (OMT-80) – The OMT-80 provides a mechanism

whereby each radio transmits and receives over independent polarities. One radio uses

vertical polarity, while the other radio uses horizontal polarity. The OMT-80 is recommended

for 2+0 links.

5.1 1+1 Protection Overview

1+1 Protection provides system redundancy that will take effect when a failure is detected. This

ensures system-level mitigation of local hardware problems.

Matching Ethernet ports on the active and standby radios are connected with fiber splitters. In this

way, both radios receive the same data from the customer.

Radios equipped with copper SFPs cannot be protected and must

be reconfigured with optical SFPs to implement Protection

configurations.

The Protection port connects both radios with an outdoor-ratedCat6A cable. The radios

communicate their Protection status messages over this connection.


47

A conceptual example of Protection active and standby radios configured with out-of-band

management and one Ethernet data connection is shown below.


48

5.2 2+0 OMT-80 Overview

The 2+0 Splitter or OMT-80 allows two GB-X radios to transmit over one antenna, thus yielding

double the traffic capacity.

5.2.1 OMT-80

Each side of the link has two radios: one fixed in horizontal polarity and one fixed in vertical

polarity. This prevents interference by providing isolation between the signal paths from each radio.

One side of the link requires two high-band radios, and the other side of the link requires two low-

band radios.

A conceptual example of OMT-80 GB-X radios is shown below.


49

5.3 Protection Product Configuration

The illustrations below, and table which follows, reflect the required quantities for one link of GB-X

radios in the Protection configuration.

• Example #1 depicts configuration with Ethernet fiber pairs, splitters, and SFPs used for

Ethernet data.

Example #1: Configuration with Ethernet fiber pairs, splitters, and SFPs

• The local radio is shown with only one Ethernet connection for clarity of call-outs.

• This diagram assumes up to two multi-mode Ethernet fiber pairs per radio and a short 24 inch

(60 cm) section of outdoor-rated Cat6A cable between radios for the 1+1 Protection

interconnect. Alternatively, Ethernet can be implemented using single-mode fibers, splitters,

and SFPs.


50

5.4 Cabling Considerations

5.4.1 Protection

Protection is only applicable for fiber-optic, not copper, SFP

modules.

The following describes cabling between the active and standby radios.


• Fiber splitters are used to connect the fiber cabling to the Ethernet and SyncE ports between

the active and standby radios, and to the customer equipment. Up to 2 Ethernet data (optical

port) connections can be used if not using SyncE (Ethernet 1 or Ethernet 2). If using SyncE,

1Ethernet data (optical port) connection can be used: Ethernet 1 or Ethernet 2 can be used for

SyncE or Ethernet data.

It is recommended to secure each fiber splitter inside a junction

box using a tie wrap.

• An outdoor-rated Cat6A cable is used between the Protection port on both the active and

standby radios to relay Protection-related information.

• For in-band management configurations, the Protection connection can also be used to

communicate in-band management, in addition to Protection communication.

• For out-of-band configurations: One Cat5e cable can be used between the copper port on the active radio and the customer equipment. Another Cat5e cable can be used between the

copper port on the standby radio and the customer equipment. Alternatively, fiber cabling

from Ethernet data ports on the active and standby radios can be used as an alternative to

Cat5e cabling from the active and standby radio copper ports.


51

• Two multi-mode or single-mode fiber cables and a fiber splitter are used to connect the

active and standby radio SyncE ports, and the customer equipment.

Ensure that the Transmit and Receive fiber connections are inserted correctly into the SFP connector

to avoid Ethernet loop. The arrow markings engraved on the SFP connector indicate the input and

output direction, as shown below.

Three 1 inch flexible conduit cables are used: one exiting the active radio to the junction box, one

exiting the standby radio to the junction box, and one exiting the junction box to the customer

equipment.

One conduit fitting is supplied with each outdoor unit.

5.4.2 2+0 OMT-80 coupler

Ethernet cabling between the two radios on each side of the link contains one 1 inch flexible conduit

which is used for each side of the link (1 per radio).

If using PoE for Ethernet data, only one outdoor-rated Cat5e cable with RJ45 connectors is required

per radio. No fiber optic cable or flexible conduit is required.


52

5.4.3 Cabling Diagram – Outdoor Radios to Indoor Equipment

The following depicts an overview of link-to-link cabling from the outdoor radios to indoor

equipment.



53

5.4.4 Cabling Diagram – Protection Active Radio to Standby Radio

The following illustrations depict a basic setup between the active and standby radios on one end of

the link. Power cabling is not shown.

• Out-of-band management with one Ethernet data connection and SyncE connection:

Fiber cabling from an Ethernet port to the customer equipment can

be used as an alternative to Cat5e cabling from the copper port.


54

• In-band management with one Ethernet data connection and SyncE connection:


55

5.5 Changing Polarity on 1+1 Protection Couplers

This subsection applies only to Protection couplers and not the

OMT-80, because the OMT-80 has fixed polarity.

The 1+1 Protection RF coupler assembly has a pre-installed vertical polarity adapter. If horizontal

polarity is required, a horizontal adapter (with a knurled ring on the outer surface) is separately

provided in the accessory kit, which requires installation. To install, refer to the following

illustration and procedure.

On installed radios, the polarity can be distinguished by checking

the smooth or knurled ring on the adapter while in-place between

the outdoor radio and the coupler: vertical polarity is smooth and

horizontal polarity is knurled.

1. Use a 7/64 inch hex key to remove the 4 captive screws securing the vertical antenna adapter to

the RF coupler assembly, and then remove the adapter from the RF coupler assembly.

2. Remove the protective cap from the horizontal antenna adapter.

3. Sparingly lubricate the rubber O-ring seal on the horizontal adapter using DOW Corning111

Valve Lubricant & Sealant or equivalent.

4. Position the adapter on the RF coupler assembly so that the “H” polarity mark is pointing in the

same direction as the “UP” mark on the RF coupler assembly.

5. Use the 7/64 inch hex key to tighten the 4 captive screws to secure the adapter to the RF coupler

assembly.


56

5.6 Antenna Mount Installation

For antenna mount installation instructions, please refer to your antenna manufacturer’s installation

guide to perform the following:

1. Assemble the antenna mounting hardware.

2. Mount the antenna to the mast.

3. Remove the protective plastic cap from the antenna port.

5.7 RF Coupler Assembly and Radio Installation

The following describes the recommended sequence, in which the RF coupler assembly is attached

to the antenna mounting assembly, and then one radio at a time is attached to the RF coupler

assembly.

The local end of the link should have two high-band radios, and

the remote end should have two low-band radios – do not put

high- and low-band radios at the same end of the link.

To install the RF coupler assembly and radios, refer to the following illustration and procedure. (The

Protection option is shown below, but the installation sequence is the same for the Protection coupler

and OMT-80, except where noted.)


57

1. Remove the protective cap from the antenna adapter (on the RF coupler assembly).

2. Position the RF coupler assembly against the antenna mounting assembly so that the “UP” mark

points up.

3. Tighten the four captive bolts in a star pattern to secure the RF coupler assembly to the antenna

mounting assembly. On the OMT-80, these bolts will also be used to fine-tune the polarization

skew.

For the OMT-80, use a level while tightening the bolts to ensure

the coupler is vertically level.

4. Attach the first radio to the RF coupler assembly.

For the Protection option, note which radio is connected to the

main port – this affects Protection configuration.

• Position the radio so that the handle is on top.

• For the Protection option, secure the main radio to the main port of the RF coupler assembly,

indicated by “MAIN”. The following illustrates the main port.


58

• For the OMT-80 option, the radios can be differentiated by the polarity marking on either

side of the coupler. The side with horizontal polarity is depicted below (vertical polarity

would be visible on the opposite side).

• Secure the radio to the RF coupler assembly by tightening the four captive bolts in a star

pattern.


59

5. Attach the second radio to the RF coupler assembly.

• Position the radio so that the handle is on top.

• Secure the radio to the RF coupler assembly by tightening the four captive bolts in a star

pattern.

6. For the 1+1 Protection option, attach the polarity label to the RF coupler, as shown below.


60

5.8 Cable Installation

Refer to previous subsections for cable installation as follows:

• Protection option with Ethernet fiber pairs, splitters and SFPs used for Ethernet data

• 2+0 OMT-80 options

The remaining cabling subsections apply to all options.

5.9 Protection Active and Standby Radio Cabling – Ethernet Fiber Pairs, Splitters, and SFPs

All data cabling is installed on matching ports between the active and standby radios using fiber

splitters.

Protection communication between the active and standby radios requires an outdoor-rated

Cat6Aconnection between each radio’s Protection ports.

The following instructions assume for out-of-band management, separate Cat5e cables from the

Copper 5 ports on the active and standby radios are used for management. For in-band management,

these cables are not required.

The illustration below can be used as a reference while performing the instructions which follow.

Active Radio Cabling

1. Attach one end of an outdoor-rated Cat6A cable to the Protection port on the active radio. The

other end will eventually be connected to the Protection port on the standby radio to

communicate Protection-related information between the radios.


61

2. Attach one end of a single- or multi-mode fiber cable, with LC connectors, to the desired

Ethernet data port on the active radio. Another fiber cable will eventually be connected to the

same-numbered (matching) Ethernet data port on the standby radio. These cables will eventually

be terminated in a fiber splitter inside the junction box mentioned above. A third fiber cable will

eventually go from the fiber splitter to customer equipment. Repeat for an extra Ethernet data or

SyncE connection.

3. For out-of-band management, attach one end of a Cat5e cable to the Copper Port 5 on the active

radio.

For in-band management, ignore this step.

4. Route the Cat6A cable used for Protection communication through the straight-through cordgrip

connector.

5. Install the power cabling on the active radio. Refer to the Power Cabling subsection 3.5.3.

6. Route the Ethernet data, SyncE, Copper 5, and power cables through the 1 inch straight-through

fitting. Then, attach the 1 inch flexible conduit to the fitting per section 2.10.3. Route these

cables, which will connect to the junction box, through this conduit.

Standby Radio Cabling

1. Attach the end of the cable from the Protection port on the active radio to the Protection port on

the standby radio (Protection communication).

2. Attach one end of a single- or multi-mode fiber cable with LC connectors, for each applicable

Ethernet port or SyncE, on the standby radio. These connection(s) must match the Ethernet

port(s) used on the active radio. These cables will eventually be terminated in a fiber splitter

inside the junction box.

3. For out-of-band management, attach one end of a Cat5e cable to Copper Port 5 on the standby

radio.

For in-band management, ignore this step.

4. Install the power cabling on the standby radio. Refer to the Power Cabling subsection 3.5.3.

5. Route the Ethernet data, SyncE, Copper 5, and power cables through the 1 inch straight-through

fitting on the standby radio. Then attach the 1 inch flexible conduit to the fitting per section

2.10.3. Route these cables, which will connect to the junction box, through this conduit.

Junction Box Cabling

1. Attach three conduit fittings to the junction box: one for the active radio to the junction-box

entry, one for the standby radio to the junction-box entry, and one for the junction-box exit to

customer equipment.

2. For each data and SyncE connection: a) Route the fiber cable from the active radio through one

entry of the junction box and attach the fiber cable LC connector to one sleeve of a fiber splitter.

b) Route the fiber cable from the standby radio matching port through the other entry of the

junction box and attach the fiber cable LC connector to the second sleeve of the fiber splitter. c)

Attach a third fiber cable with an LC connector to the third sleeve of the fiber splitter to

eventually be routed from the junction-box exit to customer equipment.


62

It is recommended to secure the fiber splitters inside the junction

box using a tie wrap.

3. For out-of-band management, a) Route the cable from the active radio Copper 5 port through the

junction-box entry designated for the active radio. b) Route the cable from the standby radio

Copper 5 port through the junction-box entry designated for the standby radio.

4. Route the power cable from the active radio through the junction-box entry designated for the

active radio; route the power cable from the active radio through the junction-box entry

designated for the standby radio.

5. Attach 1 inch flexible conduit to both junction box entries.

6. Route the following cables through the junction-box exit: data and SyncE fiber cables from the

third sleeve of the fiber splitters, Copper 5 port, and power.

7. Attach 1 inch flexible conduit to the junction-box exit.

8. Connect the fiber and Cat5e cables at the customer equipment.

5.10 2+0 OMT-80 Fiber, Power & Ground Cabling

1. Install the desired SFP modules in the radio with duplex MMF or SMF fiber from the radio to the

network termination equipment (switch or router with 1000Base-X port). The cable should be

looped around the inside of the enclosure to provide strain-relief per Figure 3.7.3 1. The

connectors on the radio end of the fiber require a duplex LC connector; the connectors on the

switch/router end should mate to the network equipment.

2. Connect the fibers at the network equipment.

If using PoE for Ethernet data, connect outdoor-rated Cat5e RJ45

cables from the Copper #5 port of each radio to the PoE enabled

devices. No SFPs or fibers are required.

3. Please refer to the Power Cabling subsection 3.5.3.

4. Please refer to the Ground Cabling subsection 3.5.2


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5.11 2+0 OMT Antenna Polarization Adjustment

Align the antenna as detailed in the Antenna Alignment subsection 3.6.

1. For the OMT-80 option, fine-tune the polarization skew to align the local OMT-80 with the

remote OMT-80 using the captive bolts, as shown below. Align one radio at a time. Use a 9/16

wrench to loosen all captive bolts, then rotate the radio/RF coupler assembly right or left, as

needed, until the target RSSI voltage is achieved.

2. After the target RSSI voltage is achieved, ensure all bolts are tightened evenly and securely; and

ensure the RSSI voltage remains unchanged after the tightening is completed.

3. In the Radio Link page, set Power Output to the level specified in link design or site license and

submit the changes, then click Commit Configuration in the Maintenance page. Repeat for the

far-end radio.

4. Clear all radios from Alignment mode.


64

Appendix A Troubleshooting

The following table provides a summary of possible problems you might encounter while installing a

Solectek GB-X link, along with possible causes and their solutions.

Table A-1: Troubleshooting

Problem Possible Cause Resolution

No power to radio Wrong polarity of supply voltage Use a DVM to determine the polarity and voltage on the DC cable. (See section3.5.2)

The supply voltage measured at the radio (when connected) is below minimum VDC specification

The cable run is too long or the cable gauge is too small. Shorten the length of the cable or use larger gauge cable. (See section 3.5.2)

RSSI weaker than expected Antennas aligned on side lobes Repeat antenna alignment procedure.

Radios set to different polarizations

Verify that both radios are mounted in the same polarization. (See section 0)

Installed two high or two low band radios in one link

Verify that one end of the link is high and the other end is a low band radio.

Test cable not inserted into test port on radio properly

Ensure test cable is completely inserted into the test port of the radio.

Make sure that you are using correct RSSI voltage chart.

If chart is for a different product, consult the correct product guide.


65

Table A-1: Troubleshooting

Cannot connect to radio network management agent (Web interface)

Incorrect IP address configuration on radio or PC

Verify Ethernet connections are up; verify IP address, check for IP address conflicts and/or clear ARP cache on PC.

Web interface access is blocked through one or more interfaces

Try accessing Web interface through other interfaces (fiber, copper, radio link).

Perform hard reset on radio unit. Attempt to access on default address via copper port.


66

Appendix B RSSI Voltage Chart

• RSSI is not calibrated above -20 dBm or below -70 dBm.

• RSSI tolerance is ±4dB between -20 dBm and -70 dBm.

1

2

3

4

5

6

7

8

9

-90-80-70-60-50-40-30-20-10

RSSI Voltage (V)

RSSI (dBm)

RSSI Voltage vs. RSSI dBm

Uncalibrated

Zone

Uncalibrated

Zone


67

Appendix C Reset Button

Performing Hard Reset

Hold the reset button down until the Alignment mode LED turns red to verify the reset is started,

then immediately release the button

Once the hard reset operation is started, a link outage will occur

until the reset is complete.

The GB-X Web interface will also not be available until the reset

is complete.

Reset Button Functionality

The Alignment Mode LED indicates different functions of the Reset button, depending on how long

the button is pressed and held while the radio is running, as described below.

Changing ATPC Mode

If the button is pressed, held then released between 1-10 seconds, the ATPC mode toggles between

Manual and Automatic. The Alignment Mode LED turns “flashing blue” in Manual mode and turns

off in Automatic mode.

Alignment

Mode LED


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Hard Restart

If the button is pressed and held between 11-20 seconds or when the LED starts flashing RED then

released, the radio performs a hard restart equivalent to the Web interface (the radio is restarted, and

current configuration settings are maintained).

Factory Hard Reset

If the button is pressed and held between 21-30 seconds or until the LED turns RED, then released,

the radio is defaulted to factory configuration settings and restarted.

If the button is pressed and held between 30-60 seconds, no action

occurs.

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