operation and installation manual tr7750 ve
TRANSCRIPT
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Part no.: 84496, v. E
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Jotron AS| TR7750: Operators handbook Page ii
P/N: 84496 (v.E)
Standards
The equipment to the following directives:
European Directive 552/2004 (SES) amended by 1265/2007 (8.33 kHz channel spacing)
European Directive 1999/5/EC (R&TTE)
The equipment is tested to the following product standards:
EMC: EN 301489-1, EN301489-22, IC RSS141 issue 1,
FCC part 15 and part 87
IEC 60950-1
Health and Safety: EN60950, CSA-C22.2 60950
Radio specifications: EN300676 (AM), EN301842-1 (VDL mode 2)
For an updated list of approvals and statements of conformity, these are available on:
www.jotron.com
http://www.jotron.com/http://www.jotron.com/http://www.jotron.com/
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List of abbreviations and definitions
100Base-T100Mbit/s physical Ethernet adapter to interface to twisted pair (copper wire) LAN. RJ45 connector is
used and range is 100m.
ACARS
Aircraft Communications Addressing and Reporting System(ACARS), is a digital data link system for
transmission of short, relatively simple messages between aircraft and ground stations via radio or
satellite.
AF
Audio frequency
Alarm
Refer to section 9.1
Alert
Refer to section 9.2
ARC MkII
Audio Remote Control unit (ARC MkII), is a Jotron manufactured remote unit for operating up to 1
channel in main/standby configuration (2 transceivers).
BITE
Built In Test Equipment
bps
Bits per second.
Cat5 Cable
Category 5 cable is a twisted pair high signal integrity cable type often referred to as Cat5 or Cat-5.
Most Category-5 cables are unshielded, relying on the twisted pair design for noise rejection.
Category 5 has been superseded by the Category 5e specification. This type of cable is used in
structured cabling for computer networks such as Ethernet and ATM, and is also used to carry many
other signals such as telephony and video.
CMS
Control and Management System, usually a IP-based network to monitor and control radios and
accessories
DRC
Data Remote Control unit, is a Jotron manufactured remote unit for changing frequency on the
radios that are connected to an ARC MkII (1channel). The DRC can set frequency and store/recall
preset frequencies.
DSP
Digital Signal Processor is a specialized microprocessor designed specifically for digital signalprocessing.
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E&M (4W E&M)
E&M is a type of supervisory line signalling that uses DC signals on separate leads, called the "E" lead
and "M" lead, traditionally used in the telecommunications industry between telephone switches.The “E” lead is normally used to signal PTT to the radio and the “M” lead is used to signal squelch
back to the voice control system.
A “4W E&M” consists of a total of 8 wires, 2W for audio in each direction, 2W for PTT signalling and
2W for squelch signalling.
ETSI
European Telecommunication Standardisation Institute
Ethernet
A family of standards for computer networking technologies for local area networks (LAN). The
standards cover physical connection, addressing and data transfer and are covered in IEEE 802.3.
ICAO
International Civil Aviation Organization
IEC
International Electro-technical Commission.
IETF
The Internet Engineering Task Force (IETF) develops and promotes Internet standards, cooperating
closely with the W3C and ISO/IEC standards bodies and dealing in particular with standards of the
TCP/IP and Internet protocol suite.
IF
In communications and electronic engineering, an intermediate frequency (IF) is a frequency to
which a carrier frequency is shifted as an intermediate step in transmission or reception. The
intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a
process called heterodyning, resulting in a signal at the difference or beat frequency. Intermediate
frequencies are used in super heterodyne radio receivers, in which an incoming signal is shifted to an
IF for amplification before final detection is done.
IP
The Internet Protocol (IP) is the principal communications protocol used for relaying datagram
(packets) across and internetwork using the Internet Protocol Suite. Responsible for routing packets
across network boundaries, it is the primary protocol that establishes the Internet.
LAN
Local Area Network
MIB
Management Information Base is a virtual database used for managing the objects (parameters) in a
communications network. Most often associated with the Simple Network Management Protocol
(SNMP). The MIB database is hierarchical (tree-structured). The software that performs the
navigation in the MIB database is a MIB browser. The MIB database is Jotron proprietary and
contains descriptions and definitions for all parameters in the radio. The MIB database is updated
each time a new radio parameter is added or changed.
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MDF KRONE connector
KRONE LSA-PLUS (or simply KRONE) is an insulation-displacement connector for communication
signals. With a dedicated tool, connections can be made without soldering, screwing or insulationremoval. 1 KRONE connector holds 10 pair or 20 signal wires and bay be mounted on brackets for cross-wiring.
ORC
Operators Remote Control unit, is a Jotron manufactured remote unit used to recall preset
frequencies on the radios that are connected to an ARC MkII (1channel).
PA
Power Amplifier
PSU
Power Supply Unit. Separate unit to power the equipment.
PTT
Push To Talk
RACS
Remote access and control system for remote control and supervision of radio systems. The software
provides the user with full access to all monitoring and control parameters on all radios on all sites
connected via LAN.
RF
Radio Frequency
RSSIReceived Signal Strength Indicator is a measurement of the power present or level of a received radio
signal.
RTP
Real-time Transport Protocol defines a standardized packet format for delivering audio(VoIP) and
video over IP networks.
SDR
Software-Defined Radio is a system where components that traditionally have been implemented in
hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) now are
implemented by means of software on an embedded computing devices, i.e. a Digital SignalProcessor (DSP).
SIP
Session Initiation Protocol is an IETF-defined signalling protocol, widely used for controlling
multimedia communication sessions such as voice and video calls over the Internet Protocol (IP). The
protocol can be used for creating, modifying and terminating two-party (unicast) or multiparty
(multicast) communication sessions consisting of one or several media streams.
S/N
SIGNAL- TO-NOISE RATIO
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SNMP
Simple Network Management Protocol is a UDP-based network protocol. It is used mostly in network
management systems to monitor and control network connected devices like the Jotron radios.SNMP is a component of the Internet Protocol Suite as defined by the Internet Engineering Task
Force (IETF). It consists of a set of standards for network management, including an application layer
protocol, a database schema, and a set of data objects.
SNMP exposes management data in the form of variables on the managed systems, which describe
the system configuration. These variables can then be queried (and sometimes set) by managing
applications like a MIB browser or the Jotron proprietary Radio Controller Client.
TCP
Transmission Control Protocol provides reliable, ordered delivery of a stream of bytes from a
program on one computer to another program on another computer or device supporting the
protocol.
TCXO
Temperature Compensated Crystal Oscillator.
UDP
User Datagram Protocol is one of the core members of the Internet Protocol Suite, the set of network
protocols used for the Internet. With UDP, computer applications can send messages, in this case
referred to as datagram’s, to other hosts on an Internet Protocol (IP) network without requiring prior
communications to set up special transmission channels or data paths.
VSWR
Voltage Standing Wave Ratio
VCO
Voltage-controlled oscillator is an electronic oscillator designed to be controlled in oscillation
frequency by a voltage input
VCS
Voice Communications System
VCCS
Voice Communication and Control System
VOGAD
Voice Operated Gain-Adjusting Device, is a type of automatic gain control for microphone/TX line
amplification. It is used in radio transmitters to ensure correct modulation and to prevent over
modulation.
VoIP
Voice over IP (VoIP) is a general term for a family of transmission technologies for delivery of voice
communications over IP networks such as the intranet/Internet or other packet-switched networks.
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VDL mode 2
The VHF Data Link or VHF Digital Link (VDL) is a means of sending information between aircraft and
ground stations. Aeronautical VHF data links use the band 117.975 - 137 MHz assigned by theInternational Telecommunication Union (ITU) to Aeronautical Mobile Route Services.
VDL Mode 2 is the only mode being implemented operationally to support Controller Pilot Data Link
Communications CPDLC. The physical (RF) link of the VDL mode 2 consist of radios that communicate
with a bit rate of 31500 b/s using differential 8 phase shift keying (D8PSK) modulation and carrier
sense multiple access (CSMA) as the access method to the RF link.
VME
VHF management entity is a control unit used in a VDL system to control the VDL radio during
transmission and reception of messages.
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Amendment Record
NO INIT DATE CHAPTERS VERSION REASON FOR CHANGE
1 OH 31.01.08 All A New layout and text
2 OH 16.09.08 AllB
New version, includes changes up to SW
release 2.05
New art number for the manual.
3 OH 11.11.08 2.1, 3.1.6, 3.2.5, 3.2.6,
3.2.7, 3.2.8, 3.3.5,
3.4.4, 3.4.5, 3.4.6
C
Information regarding frequency stability,
hardware key and protection of I/O lines added
4 OH 10.11.09 3.4.5 D beta Pin 8 Aux 2 is N/C
5 SHS/
OH
25.11.10 All E Major revision due to new manual standard.
Supports SW release up to RA: 3.0x, TA: 3.0x
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
The information in this book has been carefully checked and is believed to be accurate. However, no
responsibility is assumed for inaccuracies.
Jotron AS reserves the right to make changes without further notice to any products or modules
described herein to improve reliability, function or design. Jotron AS does not assume any liability
arising out of the application or use of the described product.
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SAFETY INSTRUCTIONS
This equipment contains CMOS integrated circuits. Observe handling precautions to avoid static
discharges which may damage these devices.
Some RF semiconductor devices used in this equipment may contain Beryllium Oxide. If inhaled, dust
from this oxide can be toxic. No danger will arise from normal handling but no attempt should be
made to tamper with these devices. On no account must these transistors be destroyed or discarded
with industrial or domestic waste, but should be returned to the manufacturer for subsequentdisposal or to a suitable destination facility that can safely handle the electronic waste.
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TABLE OF CONTENTS
AMENDMENT RECORD ............................................................................................................... VIII
SAFETY INSTRUCTIONS ................................................................................................................ IX
TABLE OF CONTENTS ...................................................................................................................... X
1 INTRODUCTION ....................................................................................................................... 1-1
1.1 DESIGN ................................................................................................................................... 1-1
1.2 MODELS COVERED BY THIS MANUAL ..................................................................................... 1-1
1.3 OPTIONS (MUST BE ORDERED SEPARATELY) .......................................................................... 1-2 1.4 LAYOUT OF THE TRANSCEIVER .............................................................................................. 1-2
1.5 APPLICATIONS ........................................................................................................................ 1-2
2 TECHNICAL SPECIFICATIONS ............................................................................................ 2-1
2.1 GENERAL SPECIFICATION, TR-7750 ....................................................................................... 2-1 2.2 TRANSMITTER U NITS, TA-7650, TA-7625, TA-7610 ............................................................ 2-2 2.3 POWER SUPPLY U NIT, PSU-7002 ........................................................................................... 2-2
2.4 R ECEIVER U NIT, RA-7203 ..................................................................................................... 2-3
3 FUNCTIONAL DESCRIPTION ............................................................................................... 3-1
3.1 FRONT PANEL CONTROLS, TRANSMITTER UNIT .................................................................... 3-1 3.1.1 Display ............................................................................................................................ 3-1
3.1.2 Scroll/Select switch and Navigation buttons A, B and C ................................................ 3-1
3.1.3 PTT button ...................................................................................................................... 3-1
3.1.4 ON/OFF button ............................................................................................................... 3-2
3.1.5 LED Indicators -TX ........................................................................................................ 3-2
3.1.6 Mic/Headset connector - TX ........................................................................................... 3-3
3.2 TRANSMITTER , REAR CONNECTIONS ...................................................................................... 3-4 3.2.1 Antenna connector (50 ohm N-type) ............................................................................... 3-4
3.2.2 Receiver ant. Connector (50 ohm BNC) ......................................................................... 3-4
3.2.3 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ..................... 3-4
3.2.4 I/O signals – general information ................................................................................... 3-5
3.2.5 LAN connector - TX (RJ45) ............................................................................................ 3-5
3.2.6 AUX1 CONNECTOR - TX (RJ45) .................................................................................. 3-6
3.2.7 AUX2 connector - TX (RJ45) .......................................................................................... 3-6
3.2.8 REM connector - TX (RJ45) ........................................................................................... 3-7
3.2.9 Rx connector - TX (RJ45) ............................................................................................... 3-8
3.3 FRONT PANEL CONTROLS, R ECEIVER UNIT ........................................................................... 3-9 3.3.1 Display - RX .................................................................................................................... 3-9
3.3.2 Scroll/Select switch and Navigation buttons A, B and C - RX ........................................ 3-9
3.3.3 ON/OFF button - RX ...................................................................................................... 3-9
3.3.4 LED Indicators -RX ...................................................................................................... 3-10
3.3.5 Headset connector - RX ................................................................................................ 3-10
3.4 R ECEIVER , REAR CONNECTIONS ........................................................................................... 3-11 3.4.1 Antenna connector - RX (50 ohm N-type) ..................................................................... 3-11
3.4.2 DC input connector - RX (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ........... 3-11
3.4.3 AC Input connector - RX (IEC 60320 - C14) ................................................................ 3-12
3.4.4 LAN connector - RX (RJ45) .......................................................................................... 3-12
3.4.5 AUX1 CONNECTOR- RX (RJ45) ................................................................................. 3-13
3.4.6 AUX2 connector - RX (RJ45)........................................................................................ 3-13 3.4.7 REM connector - RX (RJ45) ......................................................................................... 3-14
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3.5 PSU-7002, POWER SUPPLY U NIT, FRONT-VIEW .................................................................. 3-15 3.5.1 LED Indicators - PSU ................................................................................................... 3-15
3.6 POWER SUPPLY U NIT REAR CONNECTORS. .......................................................................... 3-16 3.6.1 DC input connector – PSU (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ........ 3-16
3.6.2 D C output connector – PSU (Amphenol MS 3106A 12S3P)(Jotron P/N: 93697) ....... 3-16
3.6.3 AC Input connector - PSU (IEC 60320 - C14) ............................................................. 3-17
4 INSTALLATION ........................................................................................................................ 4-1
4.1 I NTRODUCTION ....................................................................................................................... 4-1
4.2 I NITIAL INSPECTION ............................................................................................................... 4-1 4.3 I NSTALLATION INTO EQUIPMENT CABINET ............................................................................ 4-2
4.4 A NTENNA CONNECTORS ......................................................................................................... 4-3 4.5 AC AND DC CONNECTORS ..................................................................................................... 4-3
4.6 R EMOTE SIGNALS ................................................................................................................... 4-4
4.6.1 Transceiver cable – Transceiver operation .................................................................... 4-4 4.6.1.1 Transceiver cable- pin out ....................................................................................... 4-5
4.6.1.2 Menu parameters, transmitter - receiver interconnection ........................................ 4-6 4.6.2 Audio in/out and Line loop keying .................................................................................. 4-7
4.6.2.1 Menu parameters, Monitor output ........................................................................... 4-7
4.6.2.2 Menu parameters, Line input -TX ........................................................................... 4-8 4.6.2.3 Menu parameters, Line output - RX ........................................................................ 4-8
4.6.3 Other key signals ............................................................................................................ 4-9
4.6.3.1 Menu parameters, Key source -transmitter .............................................................. 4-9 4.6.4 Squelch and AGC signals, receiver unit ....................................................................... 4-10
4.6.4.1 Menu parameters, Squelch output -receiver .......................................................... 4-11 4.6.5 Alarm and Select signals, transmitter and receiver ...................................................... 4-12
4.6.5.1 Menu parameters, Alarm and Select -Receiver ..................................................... 4-13 4.6.6 RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) – (Transmitter unit) ....... 4-14
4.6.6.1 Menu parameters, RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) 4-15
4.7 APPLICATIONS ...................................................................................................................... 4-16 4.7.1 Transceiver, Local operation ........................................................................................ 4-16
4.7.1.1 Setup procedure ..................................................................................................... 4-16 4.7.2 Transceiver, 2 wire remote ........................................................................................... 4-16
4.7.2.1 Setup procedure ..................................................................................................... 4-17 4.7.3 Transceiver, 4 wire remote ........................................................................................... 4-17
4.7.3.1 Setup procedure ..................................................................................................... 4-18 4.7.4 Transmitter, Main/Standby ........................................................................................... 4-19
4.7.4.1 Setup procedure ..................................................................................................... 4-20 4.7.5 Receiver, Main/Standby ................................................................................................ 4-21
4.7.5.1 Setup procedure ..................................................................................................... 4-21 4.7.6 AM data operation (ACARS) – Option: AM MSK ........................................................ 4-22
4.7.7 VDL mode 2 data operation (part of a VDL Ground Station) ...................................... 4-22
4.7.7.1 Setup procedure: Transceiver, VDL mode 2 operation ........................................ 4-23 4.7.7.2 Menu parameters: Transmitter, VDL mode 2, Config. menu................................ 4-24
4.7.7.3 Menu parameters: Transmitter, VDL mode 2, Interface menu ............................. 4-24
4.7.7.4 Menu parameters: Receiver, VDL mode 2, Config. menu .................................... 4-25 4.7.7.5 Menu parameters: Receiver, VDL mode 2, Interface menu .................................. 4-25
5 REMOTE SYSTEMS USING IP ............................................................................................. 5-26
5.1 I NTRODUCTION ..................................................................................................................... 5-26 5.1.1 SNMP (Simple Network Management Protocol) .......................................................... 5-26
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5.1.2 RTP (Real Time Protocol) ............................................................................................ 5-27
5.1.3 SIP (Session Initialization Protocol) ............................................................................ 5-27
5.1.4 HTTP (Hypertext Transfer Protocol) ........................................................................... 5-27
5.1.5 Remote control protocol using TCP ............................................................................. 5-27
5.1.6 VDL mode 2 protocol using TCP .................................................................................. 5-27
5.1.7 DHCP (Dynamic Host Configuration Protocol) ......................................................... 5-27
5.2 APPLICATIONS USING THE IP INTERFACE ............................................................................. 5-28 5.2.1 Introduction – IP Configuration and planning ............................................................. 5-28
5.2.2 Controlling a transceiver using a Radio Remote Control (RRC) ................................. 5-28
5.2.3 IP configuration plan .................................................................................................... 5-29
5.2.3.1 VoIP system with separate antennas for main and standby ................................... 5-30 5.2.3.2 Setup procedure, VoIP using RRC (RTP and SIP) ............................................... 5-30
5.2.4 Remote Access and Control System over LAN (RACS). ............................................... 5-31
5.2.4.1 System layout ........................................................................................................ 5-31
5.2.4.2 Setup procedure ..................................................................................................... 5-32 6 ADAPTOR KIT ......................................................................................................................... 5-33
6.1 MAIN DISTRIBUTION FRAME (MDF K RONE) ....................................................................... 5-33 6.1.1 Transmitter standard wiring ......................................................................................... 5-34
Receiver standard wiring ............................................................................................................ 5-35
6.1.2 Transceiver wiring, Main/Standby, 4Wire E&M, ARC, DRC/ORC and ACU ............. 5-36
6.1.2.1 System layout ARC, DRC with two antennas (main and standby) ....................... 5-37 6.1.2.2 System layout ARC, DRC/ORC with one antenna + ACU ................................... 5-37
6.1.2.3 Detailed wiring diagram ARC, DRC/ORC + ACU using MDF Krone ................ 5-38
6.1.2.4 Setup procedure – Control using ARC, DRC/ORC, ACU .................................... 5-39 6.1.3 Transceiver wiring, Main/Standby, 4Wire E&M, VCCS and ACU .............................. 5-40
6.1.3.1 System layout ........................................................................................................ 5-40 Detailed wiring diagram transceiver + ACU using MDF Krone ............................................. 5-41
6.1.3.2 Setup procedure, main/standby transceiver connected to an ACU + VCCS ......... 5-42 6.1.4 Transceiver, Main / Standby, 4Wire +E&M, APM, ARC and DRC ............................. 5-43
6.1.4.1 System Layout ....................................................................................................... 5-44
6.1.4.1 Detailed wiring diagram transceiver + APM using MDF Krone .......................... 5-44 6.1.4.2 Setup procedure ..................................................................................................... 5-45
6.2 LEGACY WIRING ADAPTOR BOARD – P/N 82715 (OPTIONAL) .............................................. 5-46 6.2.1 Configuration of the interface board ............................................................................ 5-46
6.2.2 Radio Configuration ..................................................................................................... 5-47
6.2.3 Limitations .................................................................................................................... 5-47
6.2.3.1 Receiver: ................................................................................................................ 5-47
7 ADVANCED RADIO FUNCTIONS AND RECOMMENDED SETTINGS ......................... 6-1
7.1 I NTRODUCTION ....................................................................................................................... 6-1
7.2 TRANSMITTER ........................................................................................................................ 6-1 7.2.1 VOGAD function and use -TX ........................................................................................ 6-1
7.2.2 Line mute level ................................................................................................................ 6-2
7.2.3 Frequency Offset (Option) .............................................................................................. 6-2
7.2.4 In-band PTT signalling (Option in-band) ....................................................................... 6-2
7.3 R ECEIVER ............................................................................................................................... 6-3 7.3.1 Squelch system ................................................................................................................ 6-3
7.3.1.1 Squelch: Recommended settings ............................................................................. 6-3
7.3.1.2 Details regarding the squelch system to use ............................................................ 6-4 7.3.1.3 Details regarding the functionality of the Signal/Noise (S/N) Squelch ................... 6-4 7.3.1.4 Details regarding the Level squelch (Carrier override) .......................................... 6-5
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7.3.2 In-band Squelch signalling (Option) .............................................................................. 6-6
8 OPERATING INSTRUCTIONS ............................................................................................... 7-1
8.1 I NTRODUCTION ....................................................................................................................... 7-1
8.2 TRANSMITTER ........................................................................................................................ 7-3 8.2.1 User menu – Transmitter (Restricted access level) ........................................................ 7-3
8.2.2 User menu – Transmitter (Default access level) ............................................................ 7-4
8.2.3 Settings, information and configuration menus – Transmitter ....................................... 7-5
8.2.3.1 Radio control group - TX ........................................................................................ 7-6
8.2.3.2 TX config group - TX.............................................................................................. 7-7 8.2.3.3 Interface config group - TX ..................................................................................... 7-8
8.2.3.4 Bite system group - TX ........................................................................................... 7-9 8.2.3.5 System info group - TX ........................................................................................... 7-9
8.2.4 Parameter details – Transmitter ................................................................................... 7-10
8.2.4.1 Radio control group - TX ...................................................................................... 7-10 8.2.4.2 TX config group - TX............................................................................................ 7-11
8.2.4.3 Interface config group - TX ................................................................................... 7-14 8.2.4.4 Bite system group - TX ......................................................................................... 7-17 8.2.4.5 System info group -TX .......................................................................................... 7-17
8.3 R ECEIVER ............................................................................................................................. 7-19 8.3.1 User menu – receiver (Restricted access level) ............................................................ 7-19
8.3.2 User menu – Receiver (Default access level) ............................................................... 7-20
8.3.3 Settings, information and configuration menus – Receiver .......................................... 7-21
8.3.3.1 Radio control group - RX ...................................................................................... 7-22
8.3.3.2 RX config group - RX ........................................................................................... 7-23
8.3.3.3 Interface config group - RX .................................................................................. 7-24
8.3.3.4 Bite system group - RX ......................................................................................... 7-25 8.3.3.5 System info group - RX ......................................................................................... 7-25
8.3.4 Parameter details – Receiver ........................................................................................ 7-26
8.3.4.1 Radio control group - RX ...................................................................................... 7-26
8.3.4.2 RX config group - RX ........................................................................................... 7-27
8.3.4.3 Interface config group - RX .................................................................................. 7-30 8.3.4.4 Bite system group - RX ......................................................................................... 7-32
8.3.4.5 System info group - RX ......................................................................................... 7-34
9 FAILURES AND CORRECTIVE ACTIONS ........................................................................ 8-35
9.1 ALARMS ............................................................................................................................... 8-35
9.2 ALERTS ................................................................................................................................. 8-35
9.3 SYSTEM COMPONENTS ......................................................................................................... 8-35 9.4 TRANSMITTER ERROR CONDITIONS ...................................................................................... 8-35 9.5 R ECEIVER ERROR CONDITIONS ............................................................................................. 8-40
10 MAINTENANCE..................................................................................................................... 9-1
10.1 PREVENTIVE MAINTENANCE .............................................................................................. 9-1
10.2 PC UTILITIES ....................................................................................................................... 9-1 10.2.1 Radio Controller client ................................................................................................... 9-1
10.2.2 MIB-browser ................................................................................................................... 9-2
10.2.3 IP-Ping ............................................................................................................................ 9-2
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11 DIMENSION AND WEIGHT .............................................................................................. 10-1
11.1 TRANSMITTER UNIT .......................................................................................................... 10-1 11.2 POWER SUPPLY ................................................................................................................. 10-2
11.3 R ECEIVER U NIT ................................................................................................................ 10-3 11.4 TRANSCEIVER (SUB RACK ) ............................................................................................... 10-4
11.5 PACKAGING ...................................................................................................................... 10-4
12 SUPPORTING DOCUMENTS ............................................................................................ 11-5
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Jotron AS| TR7750: Operators handbook 0BIntroduction Page 1-1
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1 Introduction
1.1 DesignThe Jotron Receiver and Transmitter are “State of the art” fully solid state design based on a
Software-Defined Radio (SDR) concept with a Digital Signal Processor (DSP) as the core element. The
DSP provide all signal handling between the IF signal format and the analogue audio signals and vice
versa. This includes filtering, de-modulation, modulation signal leveling and more. The processor also
handles all the control signaling within the RA and TA units, and externally. The units are fully
software defined and easily upgradable with improved or new functionality. The units can be
controlled either locally or remotely via several communication protocols including Ethernet (LAN).
The RF frequencies are synthesizer controlled.
1.2 Models covered by this manualThe following models / variants are covered by this operator’s manual
Model P/N Contain units Output Frequency range Modes
TR-7750, Transceiver
(VHF)
X-84700 RA-7203, TA-7650,
PSU-7002
50 Watts 118-137 (156)
MHz
AM, (D8PSK)
TR-7725, Transceiver
(VHF)
X-84700 RA-7203, TA-7625,
PSU-7002
25 Watts 118-137 (156)
MHz
AM, (D8PSK)
TR-7710, Transceiver
(VHF)
X-84700 RA-7203, TA-7610,
PSU-7002
10 Watts 118-137 (156)
MHz
AM, (D8PSK)
TA-7650, Transmitter
(VHF)
X-84000 TA-7650, PSU-
7002
50 Watts 118-137 (156)
MHz
AM, (D8PSK)
TA-7625, Transmitter
(VHF)
X-84000 TA-7625, PSU-
7002
25 Watts 118-137 (156)
MHz
AM, (D8PSK)
TA-7610, Transmitter
(VHF)
X-84000 TA-7610, PSU-
7002
10 Watts 118-137 (156)
MHz
AM, (D8PSK)
RA-7203, Receiver
(VHF)
X-84500 RA-7203 N/A 118-137 (156)
MHz
AM, (D8PSK)
Table 1-1, Radio models
Throughout this manual, transmitter unit, TX, TA-7650 or TA-76xx refers to any of the three different
power variants of the transmitter (TA-7650, TA-7625 or TA-7610) unless otherwise noted. The term
transceiver, TR, TR-7750 or TR-77xx refers to any variant of the transceiver unless specifically noted
in the text, and the term receiver, RX and RA-7203 is used for the receiver unit (RA-7203).
The operating procedures for the different RX/TX models are equal, except the maximum rated
output power.
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1.3 Options (must be ordered separately)
Optionally the Transmitter can
include the following functionality, depending on configuration.
Optional functions Description
Extended freq. 118-
144 MHz
Extended operating frequency to 144 MHz (Option 144 MHz)
Extended freq. 118-
156 MHz
Extended operating frequency to 156 MHz (Option 156 MHz)
Carrier Offset CLIMAX offset of the transmitter frequency (ICAO standard) (Option offset)
In-band signalling Audio line tone keying of the transmitter and/or squelch signalling from the
receiver. (Option In-band)
VoIP Voice over IP audio and keying (Option VoIP)FM modulation Frequency modulation (Option FM)
AM MSK ACARS data link standard (Option AMMSK)
VDL mode 2 The transceiver implements the media access control (MAC) and physical
layer of the VDL mode 2 network. Communication to the VME is done using
TCP/IP. (Option VDL 2)
1.4 Layout of the transceiver
The receiver unit, RA-7203 operates as an independent receiver. The transmitter unit TA-7650
operates as an independent transmitter, but requires the power supply unit, PSU-7002 for operation
on AC power. The receiver and transmitter units may be placed in entirely different locations or
together and may also be configured as a transceiver with local operation from the front panel.
Figure 1.1, Complete Transceiver, RA-7203, TA-7650 and PSU-7002
1.5 ApplicationsThe transmitter TA-7650 and the receiver RA-7203 can be used either as a standalone transmitter /
receiver for ground to air voice or data communication, or combined as a transceiver with RX muting
and common audio control via the interface of the Transmitter unit.
The transmitter / receiver can be operated in the following modes:
•
Locally as a Transceiver, with microphone and headphone connected to the front panel
connector.
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• As a Transceiver, connected to a VCS (Voice Control System) using 600-ohm analogue linesfor audio, together with keying in form of in-band tones, external voltages, ground or
phantom keying.
• As a Transceiver, connected to a VCS (Voice Control System) using Ethernet (LAN/WAN) forVoIP audio and keying.
• Connected to a VME (VHF ground station) system as a data modem, using VDL mode 2.
• Connected to a VDL (VHF ground station) system using 600-ohm analogue lines for audiocontaining AM-MSK data from an external ACARS modem.
• In addition the transmitter/receiver has a large range of options for remote control using
Ethernet, serial lines or front panel controls.
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2 Technical SPECIFICATIONS
2.1 General specification, TR-7750
Applicable Standards
AM, AM-MSK ICAO annex 10, ETSI EN 300676
VDL mode 2 ETSI EN-301841 - 1
Voice over IP EUROCAE ED-137 (RTP / SIP)
EMC ETSI EN-301489 part 1/22, FCC rule 15B and 87, IC RSS-141
Shock Transport: IEC-721-3-2, Class 2M3
Vibration Transport: IEC-68-2-32, Class 2M3. IEC-68-2-6
General, all units AM 25 kHz AM 8.33 kHz AM MSK D8PSK (VDL2)
Frequency range 118-137 MHz (118-144MHz or 118-156 MHz optional)
Frequency accuracy (stability) < ±1.0 ppm@ -20°C to +55 °C,
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2.2 Transmitter Units, TA-7650, TA-7625, TA-7610Transmitter unit AM 25 kHz AM 8.33 kHz AM MSK D8PSK (VDL2)
Output power Minimum 1W, Maximum 50, 25 or 10W, model dependent. Adjustable in 0.1 dB step. Max 25W
Adjacent channel power >75 dBc >65 dBc >75 dBc >65 dBc
Modulation level up to 95%
Distortion < 5% @95% modulation
Line input 600Ω, -40 to +10dBm – adjustable sensitivity
Monitor line output 600Ω, -46 to 0dBm (Depending on input level. Relative to RX in and TX monitor level)
AGC (VOGAD) range -40 to +10 dBm on line input, threshold level is adjustable
Intermodulation protection >40 dB
Harmonic emission ≤ -90 dBc (-43 dBm @ 50W output)
Spurious emission ≤ -110 dBc (-63 dBm @ 50W output)
Keying Time Attack time:
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2.4 Receiver Unit, RA-7203
Receiver unit AM 25 kHz AM 8.33 kHz AM MSK D8PSK (VDL2)
Sensitivity, AM@1µV/30% pd 12dB SINAD (CCITT)
Sensitivity VDL (BER>10-3
) < -103 dBm
Adjacent channel rejection
(Adjacent channel selectivity) >75dB >65dB >75dB >[email protected]
Intermodulation attenuation >79 dBc >-28 dBm
IF bandwidth +/- 11kHz +/- 3.5 kHz +/- 11 kHz +/- 11 kHz
Image frequency rejection >110 dB
IF frequency rejection >110 dB
Squelch system Combination of RF level and Signal/Noise (digital coherent squelch)
Squelch RF level -5 dBµV to +42 dBµV (-112 dBm to -65 dBm)
Squelch Signal/Noise 5 dB S/N to 20dB S/N @30% modulation
Squelch activation time
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3 Functional description
3.1 Front Panel Controls, Transmitter unit
Navigation
button ADisplay
Navigation
button B
Indicators:
OUT: Output power indicator
SWR: High SWR indicator
PTT button
Scroll / Select
Switch
ON/OFF
button
Navigation
button C
Indicators:
LOW: Transmits in low power
AL : Alarm active (red)
REM: Remote ready (green)
STBY: Standby (yellow)
Mic/Headset
connector
Figure 3-1, Front view, transmitter unit, TA-7650/25/10
3.1.1 DisplayThe default display shows the most important operational parameters; Frequency and modulation. In
addition, the display will show several menus, submenus and operational parameters when entering
into the menu using Navigation button A.
3.1.2 Scroll/Select switch and Navigation buttons A, B and CThe navigation buttons, A, B and C, together with the Scroll/Select switch are used to navigate
through the menus.
The Scroll/Select switch has three actions: It can be turned clockwise, counter-clockwise, or
momentarily pressed.In general the use of the navigation buttons are:
A or Scroll/Select right: Increase a value (up)
B or Scroll/Select left: Decrease a value (down)
C or Scroll/Select press: Confirm or Enter.
The function of the navigation buttons will change depending on previous actions. The display will
indicate the function of each navigation button, by text or symbols.
3.1.3 PTT buttonThis button is used to immediately key the transmitter for test/measurement purposes. The PTT
button is connected in parallel with the PTT keying available via the microphone connector.
The PTT button may be enabled/disabled depending on the key configuration of the radio.
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3.1.4 ON/OFF buttonPress and hold button (for app. 2s) to switch the unit ON or OFF.
3.1.5 LED Indicators -TXLOW (yellow): The transmitter transmits in low power, either caused by an internal failure
(SWR, Temperature, or low input voltage) or set by the user. The low power
level is adjustable.
AL (red): Indicates that an alarm is present in the transmitter unit. Details of the alarm
will be shown on the display.
REM (green): This LED has multiple functions. The REMOTE indicator will be lit with a
constant green colour when the transmitter is “ready” for remote operation.
Ready means that the keying options has been set to include keying from anexternal source, and that the voice input has been set to an external source
(600 ohm line input) or VoIP.
In addition the REMOTE indicator will flash yellow each time the unit is
communicating on either of the remote interfaces (RS232, RS485, Ethernet).
STBY (yellow): The transmitter is kept in standby, either by user input, an external signal to
the remote interface or because an alarm condition has been detected, and
the transmitter is set up as a MAIN transmitter. In standby the transmitter
will not be able to send, even if a valid key signal is input to the unit.
OUT (yellow): Indicate that the transmitter is keyed and power is being generated, detectedat the output of the power amplifier.
SWR (red): Indicate that the SWR on the antenna is above the threshold value (app. 3:1).
The transmitter will reduce the output power to the predefined low power
level in order to protect the output stage.
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3.1.6 Mic/Headset connector - TX
Table 3-1, Mic/Headset connector, transmitter, pin out
The Mic/Headset connector is used for multiple purposes.
• Microphone/Headset connector:Connect the microphone to the Mic input/Mic GND, the +12VDC can be used to power the
microphone or a microphone amplifier.
The Headset output (referenced to GND) contains the local side tone generated from thedemodulated signal on the output of the transmitter when the transmitter is keyed, or the
received audio if the transmitter is connected to a receiver using the T/R bus available on the
rear panels.
• RS232 serial lineThe RS232 serial line can be used to control radio parameters from an external unit.
• Hardware key to change access level:In order to change the access level (see chapter 8.2.4.3 for details) a
hardware key must be inserted into the microphone/headset
connector before entering in to the menu system. The hardware keyconsists of a RJ45 connector where pin no. 4 and 5 (RS232 RX and TX)
are connected together.
Mic/Headset connector
Name PIN Purpose
Mic input 1 Sensitivity 2.5mV nominal.
Mic GND 2 Microphone ground
Headset 3Headset output, contains side-tone and/or received
audio when used together with a receiver (RA7203)
RS232 4 RS232 TX
RS232 5 RS232 RX
PTT 6 PTT input. Connect to GND (p.8) to key
+12VDC 7
Source is 12 VDC with a 3.2k ohm internal
resistance. Maximum current consumption of theexternal mic is 3 mA.
GND 8 Common ground
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3.2 Transmitter, rear connections
Figure 3-2, Rear view, transmitter unit, TA-7650/25/10.
3.2.1 Antenna connector (50 ohm N-type)
Interface to the antenna cable for the transmitter or the transceiver when used together with a
receiver unit
3.2.2 Receiver ant. Connector (50 ohm BNC)BNC-Type antenna output – 50 ohm. This connecor is connected to the antenna switch (pin switch or
relay) internally in the transmitter unit and can be connected directly to the antenna input of a co-
located receiver unit (RA7203).
Note!
The VHF radio uses a PIN switch, this type of antenna switch can only be used to switch the
antenna between a receiver and a transmitter. The output from standby transmitter can not be
switched through this antenna switch. For this application a separate Antenna Changeover Unit(ACU) is required.
3.2.3 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)
Figure 3-3, Transmitter DC input connector, rear view
Connector for DC supply (21.6 - 31.2 VDC).
Connected to the power supply, PSU-7002, or to an external DC supply.
A is the positive (+) connection and B is the negative (-) connection points.
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3.2.4 I/O signals – general informationMany of the I/O signals on the radio units are polarity dependent. The relays used are semiconductor
type relays. Optocouplers are used when practically possible to isolate the radio equipment from
external equipment. This prevents failures caused by varying ground conditions to influence the safe
operation of the equipment.
The convention used throughout this book is to add a “P” after the positive side of the signal and an
“N” after the negative.
All input and output signals are overvoltage protected by PTC resistor and will not be damaged for
input signals up to +/- 48V.
Wherever possible the standard pairs used on an ethernet connection are used for the signals. This
allows standard ethernet Cat5e or better cables to be used as patch cables with the advantage of
getting the signals as twisted pairs within the cable. The standard pairs on a Cat5e cable are found
on: Pin 1/2, 3/6, 4/5 and 7/8.
3.2.5 LAN connector - TX (RJ45)This connector contains the Ethernet bus and is normally connected to a switch/hub. It can also be
connected directly to a computer, using a twisted pair Ethernet cable. The pin-out of the connector is
the standard pin-out used in most IP networks.
LAN interface connector
Name PIN Purpose
LAN_TXP 1 Tx data
LAN_TXN 2 Tx data
LAN_RXP 3 Rx data
LAN_RXN 6 Rx dataLAN_D3P 4 Optional
LAN_D3N 5 Optional
LAN_D4P 7 Optional
LAN_D4N 8 Optional
Table 3-2, LAN interface connector, pin out
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3.2.6 AUX1 CONNECTOR - TX (RJ45)This connector is normally connected to equipment used for remote control /remote supervision of
the transmitter.
AUX1 connector, transmitter AUX
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
ALARM_P 1 Alarm out-relay (NO) O48 120
ALARM_N 2 Alarm out-relay (NO) O
Select_in_P 3 Select in, Optocouplers input I48 32
Select_in_N 6 Select in, Optocouplers input I
RS232_S 4 RS232 Transmit data I/O ± 12
RS232_R 5 RS232 Receive data I/O ± 12+12V 7 +12VDC output to external
equipment
O12V 300
GND 8 Common ground N/A
Table 3-3, AUX1 connector, transmitter, pin out
3.2.7 AUX2 connector - TX (RJ45)This connector is normally connected to equipment used for remote control / remote supervision of
the transmitter.
AUX2 connector, transmitter
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
KEY_OUT_P 1 Closed=Transmitting,
optocoupler output
O
15 50KEY_OUT_N 2 Closed=Transmitting,
optocoupler output
O
MONITOR_P 3 Monitor output to tape
recorder
O-46 to
0
dBm
15VppMONITOR_N 6 Monitor output to tape
recorder
O
TXLOW_P 4 Applying a voltage > 5VDCbetween pin 4 and 5 forces the
transmitter into low power
I +5 to+48V
ref p5± 50
TXLOW_N 5 Applying a voltage > 5VDC
between pin 4 and 5 forces the
transmitter into low power
I -5 to
-48V
ref p4
TXKEY_P 7 Applying a voltage > 5VDC
between pin 7 and 8 will key
the transmitter
I +5 to
+48V
ref p8± 50
TXKEY_N 8 Applying a voltage > 5VDC
between pin 7 and 8 will key
the transmitter
I -5 to
-48V
ref p7Table 3-4, AUX2 connector, transmitter, pin out
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3.2.8 REM connector - TX (RJ45)This connector is normally connected to equipment used for remote control / remote supervision of
the transmitter. It contains basic interfacing signals used for remote control, and will in many cases
be the only connector used.
When the Transmitter is connected together with a Receiver, using a standard Cat5E Transceiver
patch cable between the units (RX: REM to TX: RX connector), the Transmitter REM connector will
contain the basic functionality to control both the transmitter and the receiver.
With this cable installed, the receiver line output will be connected to the transmitter line input to
give a 2W interface to the transceiver. In addition there will be a squelch output signal available on
the transmitter REM connector.
REM connector, transmitter – Remote control of the transceiver
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
RS485_Z 1 RS485 (-) I/O ±5V
RS485_Y 2 RS485(+) I/O ±5V
LINE_P 3 Balanced line input/output to
TA/RA, 600 ohm I/O
-40 to
+10
dBm ± 48
(Key
input)
LINE_N 6 Balanced line input/output to
TA/RA, 600 ohm.
(For unbalanced line input:
Connect to GND, p8)
I/O
-40 to
+10dBm
TX_KEY_G 4 Grounding this pin will key
transmitterI GND 5
RX_BUSY_OUT 5 RX Busy indicator output –
Open collector
(squelch indicator)
O 15 10
ALARM 7 Low=Alarm (TA or TA/RA) O 15 50
GND 8 Common ground -
Table 3-5, REM connector, transmitter, pin out
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3.2.9 Rx connector - TX (RJ45)This connector is normally connected to the REM connector on a co-located receiver when operated
as a transceiver.
When connected to a receiver, it will make functionality such as:
• Common Rx/Tx 2 wire remote audio line interface
• Receiver audio in the local headset interface on the transmitter unit
• Rx & Tx audio on the Tx monitor output
• Transceiver alarm signalling
• Receiver squelch information in the transmitter to be used on the transmitter interface orwhen operated as a VDL mode 2 radio
Rx connector, transmitter. Interface to RX (transceiver config)
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
RS485_Z 1 RS485 (-) I/O±5V
RS485_Y 2 RS485(+) I/O
LINE_P 3 Balanced line input from
Receiver unit, 600 ohmI -40 to
+10
dBm
± 48VLINE_N 6 Balanced line input from
Receiver unit, 600 ohmI
TX_BUSY 4 TX Busy indicator output -
Open collector
(Mute output)
O 5 10
RX_BUSY 5 RX Busy optocoupler-input
(Repeater key input)I 48 32
INT_ALARM 7 This internal alarm signal is a
combined I/O signal that is
connected to a co-located
receiver for receiving alarm
signalling from the receiver (for
display on the transmitter and
to signal alarm from the
transmitter (for display on the
receiver). Input or outputLow=Alarm
I/O 48 1
GND 8 Common ground -
Table 3-6, Rx connector, transmitter, pin out
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3.3 Front Panel Controls, Receiver unit
Navigationbutton A
Display
Navigation
button B
Scroll / Select
Switch
ON/OFF
button
Sq / Navigation
button C
Indicators:
SQ: Squelch open (yellow)
AL : Alarm active (red)
REM: Remote ready (green)
STBY: Standby (yellow)
Headset
connector Loudspeaker
Figure 3-4, Front view, receiver unit, RA-7203
3.3.1 Display - RXThe default display screen shows the most important operational parameters; Frequency and
modulation. In addition, the display will show several menus, submenus and operational parameters
when entering into the menu using Navigation button A.
The default display also indicate if the receiver operated on AC or DC power, by “AC” or “DC” in theupper part of the display.
3.3.2 Scroll/Select switch and Navigation buttons A, B and C - RXThe navigation buttons, A, B and C, together with the Scroll/Select switch are used to navigate
through the menus.
The Scroll/Select switch has three actions: It can be turned clockwise, counter-clockwise, or
momentarily pressed in.
In general the use of the navigation buttons are:
A or Scroll/Select right: Increase a value (up)
B or Scroll/Select left: Decrease a value (down)
C or Scroll/Select press: Confirm or Enter.
The user interface will indicate which navigation button to use.
Navigation button C is dedicated to squelch ON/OFF button in the default view.
3.3.3 ON/OFF button - RXTo switch the unit ON or OFF: Press and hold button for approx 2s.
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3.3.4 LED Indicators -RX
SQ (yellow): The receiver squelch is open (receiving audio) when lit.
AL (red): Indicates that an alarm is present in the receiver unit. Details of the alarm will
be shown on the display.
REM (green): This LED has multiple functions. The REMOTE indicator will be lit with a
constant green colour when the receiver is “ready” for remote operation.
Ready means that the audio is output to an external source (600 ohm line
input) or VoIP.
In addition the REMOTE indicator will flash yellow each time the unit is
communicating on either of the remote interfaces (RS232, RS485, Ethernet).
STBY (yellow): The receiver is kept in standby, either by user input, an external signal to theremote interface or because an alarm condition has been detected and the
receiver is set up as a MAIN receiver. In standby the receiver will not output
any audio on any audio interface.
3.3.5 Headset connector - RX
Headset connector
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
N/C 1 No connection -N/C 2 No connection -
Headset 3 Headset output contains received
audio.
O 1W
N/C 6 No connection -
RS232 4 RS232 TX O ±12V ±15
RS232 5 RS232 RX I ±12V ±15
+12VDC 7 +12 VDC to external amplifier
(100mA max.)
O +12V
GND 8 Common ground - GND
Table 3-7, Headset connector, receiver, pin out
The Headset connector is used for multiple purposes.
• Headset connector:The Headset output (referenced to GND) contains the received audio.
• RS232 serial lineThe RS232 serial line may be used to control radio parameters from an external.
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• Hardware key to change access level:In order to change the access level (see chapter 8.3.4.3 for details) a
hardware key must be inserted into the microphone/headsetconnector before entering in to the menu system. The hardware key
consists of a RJ45 connector where pin no. 4 and 5 (RS232 RX and TX) is
connected together.
3.4 Receiver, rear connections
Figure 3-5, Rear view, receiver unit, RA-7203.
3.4.1 Antenna connector - RX (50 ohm N-type)Connect directly to a receiver antenna, or to the receiver antenna connector (BNC) on the
transmitter unit.
3.4.2 DC input connector - RX (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)
Figure 3-6, Receiver DC input connector, rear view
Connector for DC supply (21.6 - 31.2 VDC).
Connect to an external DC supply to operate the unit on DC or as a backup supply if the main AC fails.
A is the positive (+) connection and B is connected to ground or chassis (-).
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3.4.3 AC Input connector - RX (IEC 60320 - C14)
Figure 3.7, AC input connector
Input for external AC (male).
AC is input between A(N) and C(L). B is chassis ground.
The voltage range is from 85 to 264 VAC, 47-63Hz.
Note!Although signal ground has the same potential as AC ground and DC minus (-), AC ground and
DC (-) should not be used for signalling purpose.
3.4.4 LAN connector - RX (RJ45)
This connector contains the Ethernet bus and is normally connected to a nearby switch/hub. It can
also be connected directly to a computer, using a twisted pair Ethernet cable.
LAN interface connector
Name PIN Purpose
LAN_TXP 1 Tx dataLAN_TXN 2 Tx data
LAN_RXP 3 Rx data
LAN_D3P 4 Optional
LAN_D3N 5 Optional
LAN_RXN 6 Rx data
LAN_D4P 7 Optional
LAN_D4N 8 Optional
Table 3-8, LAN interface connector, pin out
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3.4.5 AUX1 CONNECTOR- RX (RJ45)
This connector is normally connected to equipment used for remote control / remote supervision of
the receiver.
AUX1 connector, receiver unit
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
ALARM_P 1 Alarm out-relay (NO) O±48 120
ALARM_N 2 Alarm out-relay (NO) O
Select_in_P 3 Select in, optocoupler input I 1W±48 32
Select_in_N 6 Select in, optocoupler input I ±12V
RS232_S 4 RS232 Transmit data O ±12V ± 15RS232_R 5 RS232 Receive data I ±12V ± 15
+12V 7 +12VDC output to external
equipment (max 100mA)O +12V 12 100
GND 8 Common ground - GND
Table 3-9, AUX1 connector, receiver, pin out
3.4.6 AUX2 connector - RX (RJ45)
This connector is normally connected to equipment used for remote control / remote supervision of
the transmitter.
AUX2 connector, receiver unit
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
Squelch_out_P 1 Closed=Receiving (Sq open),
optocoupler outputO
± 48 120Squelch_out_N 2 Closed=Receiving (Sq open),
optocoupler outputO
AGC_HILO_P 3 Hi/Lo output depending on
signal strength, optocoupler
output
O
+15 50
AGC_HILO_N 6 Hi/Lo output depending on
signal strengthO
N/C 4 -
N/C 5 -
AGC_OUT 7 AGC analogue voltage
output, depending on signal
strength. Referred to GND
O 0-4V 5 1
N/C 8 GND - GND
Table 3-10, AUX2 connector, receiver, pin out
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3.4.7 REM connector - RX (RJ45)
This connector is normally connected to a co-located transmitter unit (RX connector) when used in a
transceiver configuration, or to other equipment used for remote control of the receiver.
When connected to a transmitter, via a transceiver cable, the connection gives “transceiver”
functionality to the transmitter (Rx line and Squelch). The TX_BUSY and RX_BUSY signals are also
used in VDL mode 2 configurations to signal that the transmitter or receiver is busy transferring data.
Interface to Remote equipment or a transmitter unit
Name PIN Purpose Dir Level Max
Volt.
[V]
Max
Curr
[mA]
RS485_Z 1 RS485 (-) I/O
RS485_Y 2 RS485(+) I/O
LINE_P 3 Line output from Receiver
unit, 600 ohmI/O
± 15LINE_N 6 Line output from Receiver
unit, 600 ohmO
TX_BUSY 4 TX Busy indicator input (Mute
input)I 48 32
RX_BUSY 5 RX Busy output O 5 1
INT_ALARM 7 Low=Alarm (Note: I/O – low
input will also be recognized
as an alarm (EXT))
I/O 5 1
GND 8 Common ground - GNDTable 3-11, REM connector, receiver, pin out
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3.5 PSU-7002, Power Supply Unit, front-view
Indicators:
AC: Operating on AC
ON: ON (DC output)
Figure 3-8, PSU-7002, front view
3.5.1 LED Indicators - PSU
AC (yellow): Indicates that AC is present, and that the unit currently is operating on the
main AC power supply.
ON (green): Indicates that the PSU is ON and supplies DC on its output.
The DC is either derived from the main AC input (shown by the AC indicator),
or from the backup DC input (AC indicator dark).
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3.6 Power Supply Unit rear connectors.
Figure 3-9, Power supply unit - rear view
3.6.1 DC input connector – PSU (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)The DC input is connected to the DC backup supply (if available).
Input range is 21.6 - 31.2 VDC and current consumption is max 9A average when the transmitter
operates with full rated power output (50W).
A is the positive (+) connection and B is connected to ground (-).
Figure 3-10, DC input connector, PSU
3.6.2 D C output connector – PSU (Amphenol MS 3106A 12S3P)(Jotron P/N: 93697)The DC output connector is connected to the transmitter unit and contains the +28V DC supply for
the transmitter. The DC is generated from the main AC input or the DC backup input.
Figure 3-11, DC output, PSU
A is the positive connector pin (+) and B is connected to ground (-).
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3.6.3 AC Input connector - PSU (IEC 60320 - C14)
Figure 3-12, AC input connector, PSU
Input for external AC (male).
AC is input between A(N) and C(L). B is chassis ground.
The voltage range is from 85 to 264 VAC, 47-63Hz.
Note!
Although signal ground has the same potential as AC ground and DC minus (-), AC ground and DC (-
) should not be used for signalling purpose.
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4 Installation
4.1 Introduction
The procedures for installing the radio units / transceiver are described in table 4.1 below.
It is recommended that these procedures are completed in the order shown.
Procedure Ref. chapter
1 Initial inspection 4.2
2 Install equipment into 19” sub racks (equipmentcabinet)
4.3
3 Connect chassis stud to system earth or cabinet Figure 3-2 (TX)Figure 3-5 (RX)
Figure 3-9 (PSU)4 Connect remote connectors as required 4.6
5 Connect antenna connectors 4.4
6 Connect DC suppl y (if required) 4.5
7 Connect AC suppl y (if required 4.5
Table 4-1, Installation procedures
4.2 Initial inspectionOn receipt of the radio units, remove all transit packaging and check that there is no damage to the
equipment. If damage is evident, contact Jotron immediately and retain the original transit
packaging.
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4.3 Installation into equipment cabinetThe units may be installed into a standard 19” sub-rack with a height of 3U ( 1U= 44.45 mm).
The sub-rack is divided into 84 TE units horizontally (1TE=5.08mm). The transmitter occupies 28 TE,
the PSU occupies 14TE and the receiver unit occupies 14TE.
For a transceiver this leaves a free space of 28TE available for other equipment.
Figure 4-1 shows some examples for installation into 19” sub-rack. From top to bottom the figure
shows: 6 receivers in one sub-rack, 2 transmitters with PSU in one sub-rack and 3 transmitters
without PSU (operated on DC) in one sub-rack. Jotron suggests that more space is added for better
heat dissipation, if possible.
Figure 4-1, Examples of various configurations
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4.4 Antenna connectorsThe antenna should be of good quality with regards to gain and VSWR to obtain maximum
performance. Make sure that the VSWR on the antenna is low, and that the cable from the
transmitter to the antenna is of good quality to avoid mismatch and unnecessary losses.A cable loss of 1 dB is the same as reducing the power output of a 50W transmitter to less than 40W.
Similarly, a cable loss of 2 dB is the same as reducing the output power to less than 32W.
In areas were thunderstorms and lightning is a problem, surge arrestors should be mounted where
the antenna cables enters into the building. The arrestors should be of good quality and be capable
of handling the output power of the transmitter.
The antenna output of the transmitter is an N-type antenna connector at the back of the transmitter.
The second connector (BNC-type) is the output from the Tx antenna switch and can be used to
connect to a receiver for T/R switching to a common antenna in Transceiver configuration. This
output connector must NOT
4.5 AC and DC connectors
be used for TX main/standby switching.
Refer to section 3.2.3, 3.4.2, 3.4.3 and 3.6 for voltages and connectors.
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4.6 Remote signalsSeveral remote signals are available on the rear interfaces of the radio units. These signals can be
grouped into: Audio signals, Key signals, Data interface signals and other signals.
Note, for all interface signals, RJ45 connectors are used. As far as practically possible, the pairs used
on a standard Ethernet connection are used when a signal is input/output as a pair to the radio (e.g.
audio lines). For interconnections between the transmitter and receiver, and for interconnection to a
distribution panel with RJ45 connectors, standard Cat5E, Ethernet cable should be used. This is a
good quality, screened cable, with 1 to 1 connections between the two connectors.
Below is an overview of the signals available and their primary use. Refer to chapter 3.2 and 3.4 for
an overview of the different connectors.
4.6.1 Transceiver cable – Transceiver operation
When the Transmitter is wired together with a Receiver as a Transceiver, the Transmitter REMconnector will also have the basic functionality for remotely controlling the receiver.
Transceiver wiring may ether be done by using a standard Cat5e computer cable with RJ45
connectors between the units (Rx-REM to Tx-RX connector) or via KRONE connection inter-wiring
The Transceiver cable signals and pin out are as follows:
TX - REM/RX RX - REM PIN NAME DESCRIPTION
Pin no Pin no
1 1 RS485_Z RS485 - serial communication
2 2 RS485_Y RS485 - serial communication
3 3 LINE_P
RX Audio 600ohm balanced4 4 TX BUSY TTL L=transmitting (RX pullup)
5 5 RX BUSY TTL L=receiving (TX pullup)
6 6 LINE_N RX Audio 600ohm balanced
7 7 ALARM Alarm (TTL) I/O TRX alarm
8 8 GND Ground
CABLE
4 p a i r s
R J 4 5 - C a t 5 E ,
F T P
Table 4-2, Transceiver, transmitter – receiver interconnections
When connecting the signals on the transmitter RX connector with the signals on the receivers REM
connector, via the transceiver cable, the following functionality is added to the transmitter and
receiver:
The receiver audio line (p.3 and p.6) is input to the transmitter. This makes receiver audio available in the transmitter headphone connector, allowing only
one plug to be used for a combined headset/microphone.
In addition a 2 wire interface to the transmitters audio input line is possible for combined
transmitter and receiver audio.
Finally, it enables monitoring of both the transmitted audio and the received audio via the
monitor output line (AUX2, p.3 and p.6) on the transmitter.
A RX Busy signal (p.5) is input to the transmitter from the receiver. This signal signals the transmitter that the RX is busy. This is used in VDL operation.
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A TX Busy signal (p.4) is output from the transmitter to the receiver. This signal signals the receiver that the TX is busy (transmitting). This is used in VDL
operation, and to mute the receiver while transmitting (see table below).
A receiver alarm in/out is connected to the transmitter alarm in/out.This enables the functionality that the complete transceiver (both receiver and transmitter
unit) will enter into alarm state if one of the units fails. This is useful if the complete
transceiver should be switched to a backup transceiver.
The RS485 serial lines from both units are connected in parallel. This is useful to have only one connection point for the RS485 on the transceiver for remote
control.
RS485 serial bus is primarily used by the Data Remote Control unit (DRC) and Operators
Remote Control unit (ORC) to remotely set/change frequency and other parameters, on the
Receiver, Transmitter or Transceiver.
4.6.1.1 Transceiver cable- pin out
Standard Ethernet Cat5 patch cable (straight)
Figure 4.2, Ethernet patch cable pin out
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4.6.1.2 Menu parameters, transmitter - receiver interconnection
Menu path:Interface config►
Parameter Details
RS485(TX and RX)
Bitrate See chapter 8.2.4.3 and 8.3.4.3 for details
RS485(TX and RX)
Address See chapter 8.2.4.3 and 8.3.4.3 for details
RS485(TX and RX)
Protocol See chapter 8.2.4.3 and 8.3.4.3 for details
Menu path:TX config ►
Parameter Details
Audio(TX)
Monitor output See chapter 8.2.4.2 for details
Audio(TX)
Line=> Headgain
See chapter 8.2.4.2 for details
Menu path:RX config ►
Parameter Details
Audio(RX)
Mute ontransmit
See chapter 8.3.4.2 for details
Audio(RX)
Output source See chapter 8.3.4.2 for details
Audio(RX)
Line Outputlevel
See chapter 8.3.4.2 for details
Table 4-3, Settings associated with the transmitter - receiver interconnection
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4.6.2 Audio in/out and Line loop keying
Figure 4-3, Audio interfaces on the transmitter and receiver units
With reference to Figure 4-2, the following audio remote signals are available on the rear connectors:
Monitor out: Monitor signal, usually connected to a recording unit.
4.6.2.1 Menu parameters, Monitor output
Menu path Parameter Details
Audio(TX)
Monitor output See chapter 8.2.4.2 for details
Audio(TX)
Monitor level See chapter 8.2.4.2 for details
Table 4-4, Settings associated with MONITOR OUTPUT (TA – AUX1)
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Line input, transmitter: This is the transmitter audio line input. This signal is usuallyconnected to a VCS system or a remote control that uses a 600 ohm line interface.
4.6.2.2 Menu parameters, Line input -TX
Menu path:TX config ►
Parameter Details
Audio(TX)
Input source See chapter 8.2.4.2 for details
Audio(TX)
Line sensitivity See chapter 8.2.4.2 for details
Audio(TX)
Linetermination
See chapter 8.2.4.2 for details
Audio
(TX)
Line mute level See chapter 8.2.4.2 for details
Keying(TX)
Source See chapter 8.2.4.2 for details
Keying(TX)
Loop key bias Line loop Keying.See chapter 8.2.4.2 for details
Table 4-5, Settings associated with LINE_INPUT (TX-REM)
Line output, receiver: This is the receiver audio line output. This signal is usually connectedto the VCS system or a remote control that uses a 600 ohm line interface.
4.6.2.3 Menu parameters, Line output - RX
Menu path:RX config ►
Parameter Details
Aud io(RX)
Output source See chapter 8.3.4.2 for details
Aud io(RX)
Line output level See chapter 8.3.4.2 for details
Table 4-6, Settings associated with LINE_OUTPUT (RX-REM)
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4.6.3 Other key signals
Figure 4-4, Key signals on the transmitter unit
In addition to the line loop keying, it is possible to key the transmitter, using several other hardware
and software options.
TX_KEY_GThis is a input on the transmitter REM connector, pin 4. This pin, if connected to GND, will
key the transmitter.
TXKEY_P, TXKEY_NThis is a differential input, on the transmitter AUX2 connector, pin 7 and 8. A DC voltage
between 5 and 48V(+ or -) between the pins will key the transmitter.
Note also that this is a differential signal, not connected to any ground potential inside the
transmitter, therefore the signal can be configured for both positive and negative voltage
keying (see figure).
4.6.3.1 Menu parameters, Key source -transmitter
Menu path:TX config ►
Parameter Details
Keying(TX)
Source See chapter 8.2.4.2 for details
Table 4-7, Key Source settings
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4.6.4 Squelch and AGC signals, receiver unit
Figure 4-5, Squelch and AGC signals receiver unit
RX_BUSY (REM, p.5)Squelch output signal that is refered to GND.
This signal can be used to detect that the receiver is busy on a connected transmitter unit, on
a remote control or any other units that can use this signal.
The signal function (Open or Closed on busy) can be configured.
SQUELCH (AUX2, p.1 and p.2)This signal indicates that the squelch is activated / closed.
The signal function (Open or Closed on busy) can be configured.
The output is a solid state relay, rated for maximum 100V / 100mA.
AGC_HILO_P, AGC_HILO_N (AUX2, p.3 and p.6)This signal indicates that a signal above approximately +40 dBuV is received.
This can be used to detect if the signa