jotron TR-7750C, TA-7650C, RA-7203C Operator's Manual

Jotron AS| TR7750C: Operators Manual  Introduction

Page ii

Approvals The equipment is designed to meet the essential requirements of European Directives 1999/5/EC, 89/336EEC as amended by Directive 93/68/EEC and 72/23/EEC

Standards

The following standards are applied:

EMC: EN301843-1 and EN301843-2

FCC part 80 Health and Safety: EN60950 Radio specifications: EN301929-1 and EN301929-2

For an updated list of approvals and statements of conformity, these are available on:

www.jotron.com

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Introduction

Page iii

List of abbreviations and definitions

BITE

Built In Test Equipment

bps

Bits Per Second.

DSP

Digital Signal Processor

ETSI

European Telecommunication Standardisation Institute

ICAO

International Civil Aviation Organization

IEC

International Electro-technical Commission.

LAN

Local Area Network

Power Amplifier

PSU

Power Supply Unit. Separate unit to power the equipment.

PTT

Push To Talk

Radio Frequency

S/N

SIGNAL- TO-NOISE RATIO

SNMP

Simple Network Management Protocol, a network protocol used to control the radio equipment. This equipment is defined as an AGENT in a SNMP system.

VSWR

Voltage Standing Wave Ratio

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Introduction

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INIT

DATE

CHAPTERS

VERSION

REASONFOR CHANGE 1

13.08.08

All

84748_O

New product

11.11.08

3.2.5, 3.2.6, 3.2.7,

3.4.4, 3.4.5, 3.4.6

Information regarding Frequency stability, Hardware Key and protection of I/O lines added.

29.06.09

3-5 C Information regarding type of LAN cable

10.11.09

3.4.5, 1.1

Pin 8 Aux 2 is N/C, Output power configuration range in radio model table.

05.04.13

3.2.7, 3.2.8, 3.4.6,

4.6.1

Fixed RS485 polarity error.

28.04.14

4.4 F FCC and IC approval

04.06.14

Page vi

Added warning statement, modification warning statement and digital device statement.

8 9 10

16 17 18 19

Amendment Record

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.

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Introduction

Page v

SAFETY INSTRUCTIONS

CAUTION! This equipment contains CMOS integrated circuits. Observe handling precautions to avoid static discharges which may damage these devices.

WARNING! 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 manufacturers for subsequent disposal.

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Introduction

Page vi

WARNING STATEMENT

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

MODIFICATION WARNING STATEMENT

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

DIGITAL DEVICE STATEMENT

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

--Reorient or relocate the receiving antenna.

--Increase the separation between the equipment and transceiver.

--Connect the equipment into an outlet on a circuit different from that to which the transceiver is connected.

--Consult the dealer or an experienced radio/TV technician for help.

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Introduction

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TABLE OF CONTENTS

1 INTRODUCTION ....................................................................................................................... 1-1

1.1 MODELS COVERED BY THIS MANUAL ..................................................................................... 1-1

1.2 LAYOUT OF THE TRANSCEIVER .............................................................................................. 1-1

1.3 APPLICATIONS ........................................................................................................................ 1-2

2 TECHNICAL SPECIFICATIONS ............................................................................................ 2-1

2.1 GENERAL SPECIFICATION, TRANSCEIVER UNITS, TR-7750C ................................................ 2-1

2.2 TRANSMITTER UNITS, TA-7650C .......................................................................................... 2-1

2.3 RECEIVER UNIT, RA-7203C ................................................................................................... 2-2

2.4 POWER SUPPLY UNIT, PSU-7002 ........................................................................................... 2-2

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 ............................................................................................................... 3-1

3.1.5 LED Indicators ............................................................................................................... 3-2

3.1.6 Mic/Headset connector ................................................................................................... 3-2

3.2 TRANSMITTER, REAR CONNECTIONS ...................................................................................... 3-4

3.2.1 Antenna connector (50 ohm N) ....................................................................................... 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 LAN connector (RJ45) .................................................................................................... 3-5

3.2.5 AUX1 CONNECTOR (RJ45) .......................................................................................... 3-5

3.2.6 AUX2 connector (RJ45) .................................................................................................. 3-6

3.2.7 REM connector (RJ45) ................................................................................................... 3-6

3.2.8 Rx connector (RJ45) ....................................................................................................... 3-7

3.3 FRONT PANEL CONTROLS, RECEIVER UNIT ........................................................................... 3-8

3.3.1 Display ............................................................................................................................ 3-8

3.3.2 Scroll/Select switch and Navigation buttons A, B and C ................................................ 3-8

3.3.3 ON/OFF button ............................................................................................................... 3-8

3.3.4 LED Indicators ............................................................................................................... 3-8

3.3.5 Headset connector .......................................................................................................... 3-9

3.4 RECEIVER, REAR CONNECTIONS ........................................................................................... 3-10

3.4.1 Antenna connector (50 ohm N) ..................................................................................... 3-10

3.4.2 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ................... 3-10

3.4.3 LAN connector (RJ45) .................................................................................................. 3-11

3.4.4 AUX1 CONNECTOR (RJ45) ........................................................................................ 3-11

3.4.5 AUX2 connector (RJ45) ................................................................................................ 3-12

3.4.6 REM connector (RJ45) ................................................................................................. 3-12

3.5 PSU-7002, POWER SUPPLY UNIT, FRONTVIEW .................................................................... 3-13

3.5.1 LED Indicators ............................................................................................................. 3-13

3.6 POWER SUPPLY UNIT REAR CONNECTORS. .......................................................................... 3-14

3.6.1 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ................... 3-14

3.6.2 DC Output Connector(Amphenol MS 3106A 12S3P)(Jotron P/N: 93697) .................. 3-14

3.6.3 AC Input connector ....................................................................................................... 3-15

4 INSTALLATION ........................................................................................................................ 4-1

4.1 INTRODUCTION. ...................................................................................................................... 4-1

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4.2 INITIAL INSPECTION ............................................................................................................... 4-1

4.3 INSTALLATION INTO EQUIPMENT CABINET ............................................................................ 4-2

4.4 ANTENNA CONNECTORS ......................................................................................................... 4-2

4.5 AC AND DC CONNECTORS ..................................................................................................... 4-2

4.6 REMOTE SIGNALS ................................................................................................................... 4-2

4.6.1 REM connector (receiver) and RX connector (transmitter) ........................................... 4-3

4.6.2 Audio in/out and Line loop keying .................................................................................. 4-6

4.6.3 Other key signals ............................................................................................................ 4-9

4.6.4 Squelch and AGC signals, receiver unit ....................................................................... 4-11

4.6.5 Alarm and Select signals transmitter and receiver ....................................................... 4-12

4.6.6 Miscellaneous signals, transmitter ............................................................................... 4-14

4.7 APPLICATIONS ...................................................................................................................... 4-15

4.7.1 Transceiver, local configuration................................................................................... 4-15

4.7.2 Transceiver, remote configuration ............................................................................... 4-18

4.7.3 Transmitter, main / backup configuration .................................................................... 4-20

4.7.4 Receiver, main / backup configuration ......................................................................... 4-22

5 OPERATING INSTRUCTIONS ............................................................................................... 5-1

5.1 INTRODUCTION ....................................................................................................................... 5-1

5.2 USER MENU – TRANSMITTER (RESTRICTED ACCESS LEVEL) .................................................. 5-2

5.3 USER MENU – TRANSMITTER (DEFAULT ACCESS LEVEL) ....................................................... 5-3

5.4 SETTING, INFORMATION AND CONFIGURATION MENUS – TRANSMITTER ............................... 5-4

5.4.1 Radio control group ........................................................................................................ 5-5

5.4.2 TX config group .............................................................................................................. 5-5

5.4.3 Interface config group .................................................................................................... 5-6

5.4.4 Bite system group ............................................................................................................ 5-7

5.4.5 System info group ........................................................................................................... 5-7

5.5 PARAMETER DETAILS – TRANSMITTER .................................................................................. 5-8

5.5.1 Radio control group ........................................................................................................ 5-8

5.5.2 TX config group .............................................................................................................. 5-8

5.5.3 Interface config group .................................................................................................. 5-11

5.5.4 Bite system group .......................................................................................................... 5-14

5.6 USER MENU – RECEIVER (RESTRICTED ACCESS LEVEL) ....................................................... 5-15

5.7 USER MENU – RECEIVER (DEFAULT ACCESS LEVEL)............................................................ 5-16

5.8 SETTING, INFORMATION AND CONFIGURATION MENUS – RECEIVER.................................... 5-17

5.8.1 Radio control group ...................................................................................................... 5-18

5.8.2 RX config group ............................................................................................................ 5-18

5.8.3 Interface config group .................................................................................................. 5-19

5.8.4 Bite system group .......................................................................................................... 5-20

5.8.5 System info group ......................................................................................................... 5-20

5.9 PARAMETER DETAILS – RECEIVER ....................................................................................... 5-21

5.9.1 Radio control group ...................................................................................................... 5-21

5.9.2 RX config group ............................................................................................................ 5-22

5.9.3 Interface config group .................................................................................................. 5-23

5.9.4 Bite system group .......................................................................................................... 5-26

6 ERROR CONDITIONS AND CORRECTIVE ACTIONS ..................................................... 6-1

6.1 TRANSMITTER ERROR CONDITIONS ........................................................................................ 6-1

6.2 RECEIVER ERROR CONDITIONS ............................................................................................... 6-5

7 LIST OF TABLES AND FIGURES .......................................................................................... 7-1

APPENDIX A. LIST OF MARITIME CHANNELS AND FREQUENCIES ............................ 7-1

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Introduction

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Model

P/N

Contain units

Output

Frequency range

Modes

TR-7750C, Transceiver

X-84610

RA-7203C, TA-7650C, PSU-7002

10 - 50 Watts

156-162 MHz

FM, (G3E)

TA-7650C, Transmitter

X-84555

TA-7650C,

PSU-7002

10 - 50 Watts

156-162 MHz

FM, (G3E)

RA-7203C, Receiver

X-84550

RA-7203C

N/A

156-162 MHz

FM, (G3E)

1 Introduction

1.1 Models covered by this manual

The following models / variants are covered by this operator’s manual

Table 1.1-1, Radio models

Throughout this manual the term transmitter unit, TX, TA-7650C refers to the transmitter unit. The term transceiver, TR, TR-7750C refers to any variant of the transceiver unless specifically noted in the text and the term receiver, RX and RA-7203C is used for the receiver unit.

1.2 Layout of the transceiver

The receiver unit, RA-7203C operates as an independent receiver. The transmitter unit TA-7650C 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 when configured as a transceiver.

Figure 1.1, Complete Transceiver, RA-7203C, TA-7650C and PSU-7002

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Jotron AS| TR7750C: Operators Manual  Introduction

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1.3 Applications

The transmitter TA-7650C and the receiver RA-7203C can be used either as a standalone transmitter / receiver for maritime voice or data communication, or combined as a transceiver. The transmitter / receiver can be operated in the following modes:

 Locally as an analogue FM transceiver, with microphone and headphone connected to the

front panel connector,

 Connected to a VCS (Voice Control System) using 600-ohm analogue lines for audio, together

with keying in form of in-band tones, external voltages or phantom keying.

 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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Jotron AS| TR7750C: Operators Manual  Technical SPECIFICATIONS

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Standards

EN 301489-x ,Health and Safety: EN 60950,Radio specifications:EN301929-1 and EN301929-2,FCC part80

Environmental, all units

Temperature range

-20°C to +55°C (operating) -40°C to +70°C (storage)

Humidity

90% @+40°C (non condensing)

Shock

Transport: IEC-721-3-2, Class 2M3

Vibration

Transport: IEC-68-2-32, Class 2M3. IEC-68-2-6

EMC

EN 301 489 – part 22, FCC, IC

General, all units

FM 25 kHz

FM 12.5 kHz

DSC

Frequency range

156-162 MHz , All channels, simplex and duplex within the maritime VHF band is available.

Frequency stability

+/- 1.0 ppm

RF Modes

G3E

G2B

Keying time

< 1.0ms

Bit rate

2.4 kbit/s

Frequency response

300-3400 Hz

350-2500 Hz

Data ports

RS232, RS485, 100BaseT

Protocols

Simple Network Management Protocol (SNMP v.2), RS232, RS485; See Protocol description

BITE monitoring

VSWR, Voltages, Currents, Levels, Lock detect,

Temperature, Output power, Reflected power, a.o.

Supply voltage, AC

115/230VAC +15/-10% / 50-60Hz

Supply voltage, DC

21.6 - 31.2VDC negative ground

MTBF

>10 years / unit

MTTR

<30 minutes at lowest replaceable unit

Transmitter unit

FM 25 kHz

FM 12.5 kHz

DSC

Output power

10-50W

Adjacent channel power

>80dBc

>70dBc

>80dBc

Modulation level

up to ± 5kHz deviation

Distortion

< 3%

Line input

600, -36 - +7dBm

Intermodulation protection

>40 dB when interfering signal is decoupled with at least 30 dB

Tx timeout

10s to 5 min in 10s steps

Inband keying

Configurable tones: 150 – 3400Hz

VSWR

1 : Infinity

Duty cycle

100% continuous operation @ambient below 40°C

Power consumption

<280VA

Dimension Transmitter nit

142mm(28TE)(W) * 230mm(D) * 128mm (H), Weight 3.0 kg

2 Technical SPECIFICATIONS

2.1 General specification, Transceiver Units, TR-7750C

2.2 Transmitter Units, TA-7650C

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Receiver unit

FM 25 kHz

FM 12.5 kHz

DSC

Sensitivity, FM@1V/30% pd

10dB SINAD (CCITT)

Adjacent channel rejection

>80dB

>70dB

Intermodulation (3 signal)

>80 dBc

IF bandwidth

+/- 11kHz

+/- 3.5 kHz

+/- 11 kHz

Image and IF frequency

>110 dB

Squelch operation

Adjustable -107dBm, 30dB

S/N + carrier override

Activation time <20ms

Hysteresis <3dB

Audio AGC

30% - 90%, <1dB variation

Signal / Noise

>45dB on any output @100V, 30%

AGC range

-107dBm to +5dBm

Inband squelch signal

User configurable tones: 150 - 3400 Hz

Line output

600, -36 - +7dBm @90% modulation

Harmonic distortion

<5% @90% AM (line output)

Cross modulation

>85dB @ 100 kHz frequency offset

Blocking

>100dB @1MHz offset,>110 dB out of band signals

Dynamic range

>110dB

Spurious response rejection

>90dB

Weight

1.7 kg

Dimension Receiver unit

71mm (14TE)(W) * 230mm(D) * 128mm (H)

Power supply unit

Supply voltage, AC

115/230VAC +15/-10% / 50-60Hz

Output voltage

+28 VDC regulated

DC throughput

When AC not present

Max load

10A average, 18A peak (300W)

Dimension PSU unit

71mm (14TE)(W) * 303mm(D) * 128mm (H)

Weight

1.3Kg

2.3 Receiver Unit, RA-7203C

2.4 Power Supply Unit, PSU-7002

P/N: 84748 (G)

Jotron AS| TR7750C: Operators Manual  Functional description

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Navigation

button A

Display

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

3 Functional description

3.1 Front Panel Controls, Transmitter unit

3.1.1 Display

The display shows the most important operational parameters; Channel, 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 C

The 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, anti-clockwise, or momentarily pressed. In general the use of the navigation buttons are:

The user interface will indicate which navigation button to use.

3.1.3 PTT button

This button is used to immediately key the transmitter for test/measurement purposes, connected together with the PTT line available on the microphone connector.

3.1.4 ON/OFF button

Press and hold button (for app. 2s) to switch unit ON or OFF.

Figure 3.1-1, Front view, transmitter unit, TA-7650C/25C/10C

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.

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Mic/Headset connector

Name

Purpose

Mic input

Dynamic. Sensitivity 2.5mV nominal.

Mic GND

Reference input for mic signal

Headset

Headset output, contains sidetone and/or received audio when used with a receiver (RA7203)

RS232

RS232 TX

RS232

RS232 RX

PTT 6 PTT input. Connect to GND (p.8) to key

+12VDC

+12 VDC to mic. Amplifier (10mA)

GND

Common ground

3.1.5 LED Indicators

LOW (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 an external source, and that the voice input has been set to an external source (600 ohm line input). 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. The LED

is activated based on RF detected on the output of the power amplifier, thus the LED gives an indication that power is generated.

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.

3.1.6 Mic/Headset connector

Table 3.1-1, 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 +12VDC is current limited at 100mA. The Headset output (referenced to GND) contains the local sidetone generated from the demodulated signal on the output of the transmitter when the transmitter is keyed, or the

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Jotron AS| TR7750C: Operators Manual  Functional description

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received audio if the transmitter is connected to a receiver using the T/R bus available on the rear panels (for details see chapter 3.2.4)

 RS232 serial line

The RS232 serial line that can be used to control radio parameters from an external unit, or to upload new firmware into the radio unit for future functionality. Details regarding firmware upgrade is described in the maintenance and repair manual.

 Hardware key to change access level:

order to change the access level (see chapter 5.5.3 for details) a hardware key must be inserted into the microphone/headset connector 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.

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Jotron AS| TR7750C: Operators Manual  Functional description

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3.2 Transmitter, rear connections

Figure 3.2-1, Rear view, transmitter unit, TA-7650C/25C/10C.

3.2.1 Antenna connector (50 ohm N)

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 relay internally in the transmitter unit and can be connected directly to the antenna input of a mating receiver unit (RA7203).

3.2.3 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)

Figure 3.2-2, Transmitter DC input connector, rear view

Connector for DC supply (21.6 - 31.2 VDC). Connected to the mating 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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Jotron AS| TR7750C: Operators Manual  Functional description

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LAN interface connector

Name

Purpose

LAN_TXP

Tx data

LAN_TXN

Tx data

LAN_RXP

Rx data

LAN_D3P

Optional

LAN_D3N

Optional

LAN_RXN

Rx data

LAN_D4P

Optional

LAN_D4N

Optional

AUX1 connector, transmitterAUX Name

Purpose

ALARM_P

Alarm out-relay (NO)

ALARM_N

Alarm out-relay (NO)

Select_in_P

Select in, optocoupler input

RS232_S

RS232 Transmit data

RS232_R

RS232 Receive data

Select_in_N

Select in, optocoupler input

+12V

+12VDC output to external equipment (max 300mA)

GND

Common ground

3.2.4 LAN connector (RJ45)

This connector contains the Ethernet bus and is normally connected to a nearby switch/hub or directly to a computer, using a screened twisted pair Ethernet cable.

Table 3.2-1, LAN interface connector, pin out

3.2.5 AUX1 CONNECTOR (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter.

Table 3.2-2, AUX1 connector, transmitter, pin out

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AUX2 connector, transmitter

Name

Purpose

KEY_OUT_P

Closed=Transmitting, optocoupler output

KEY_OUT_N

Closed=Transmitting, optocoupler output

MONITOR_P

Monitor output to tape recorder

TXLOW_P

Applying a voltage > 5VDC between pin 4 and 5 forces the transmitter into low power

TXLOW_N

Applying a voltage > 5VDC between pin 4 and 5 forces the transmitter into low power

MONITOR_N

Monitor output to tape recorder

TXKEY_P

Applying a voltage > 5VDC between pin 7 and 8 will key the transmitter

TXKEY_N

Applying a voltage > 5VDC between pin 7 and 8 will key the transmitter

REM connector, transmitter – Remote control of transceiver

Name

Purpose

RS485+

RS485 (+)

RS485-

RS485(-)

LINE_P

Diff. line input/output to TA/RA, 600 ohm

TX_KEY_G

Grounding this pin will key transmitter

RX_BUSY_OUT

RX Busy indicator output (squelch indicator)

LINE_N

Diff. line input/output to TA/RA, 600 ohm

ALARM

Low=Alarm (TA or TA/RA)

GND

Common ground

3.2.6 AUX2 connector (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter.

Table 3.2-3, AUX2 connector, transmitter, pin out

3.2.7 REM connector (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter. It contains the most basic interfaces used for remote control, and will in many cases be the only connector used. Note that this connector will also have the most basic functionality for remote controlling the receiver when the Rx connector is connected to the REM connector on a receiver. In this case the line, and squelch out signals from the receiver are reflected also on the REM connector.

Table 3.2-4, REM connector, transmitter, pin out

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Rx connector, transmitter. Interface to RX (transceiver config)

Name

Purpose

RS485+

RS485 (+)

RS485-

RS485(-)

LINE_P

Diff. line input from Receiver unit, 600 ohm

TX_BUSY

TX Busy indicator output (Mute output)

RX_BUSY

RX Busy optocoupler-input (Repeater key input)

LINE_N

Diff. line input from Receiver unit, 600 ohm

INT_ALARM

Low=Alarm (Note: I/O – low input will also be recognized as an alarm (EXT))

GND

Common ground

3.2.8 Rx connector (RJ45)

This connector is normally connected to the REM connector on a mating receiver when used in a transceiver configuration. It gives functionality to a transceiver such as: Common 2 wire line interface, received audio in transmitter local headset, transceiver alarm, TX/RX busy signalling when used as a VDL modem.

Table 3.2-5, Rx connector, transmitter, pin out

P/N: 84748 (G)

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Page 3-8

Navigation

button 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

3.3 Front Panel Controls, Receiver unit

3.3.1 Display

3.3.2 Scroll/Select switch and Navigation buttons A, B and C

The 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, anti-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

To switch the unit ON or OFF: Press and hold button for approx 2s

3.3.4 LED Indicators

SQ (yellow): The receiver squelch is open (receiving audio) when lit.

Figure 3.3-1, Front view, receiver unit, RA-7203C

P/N: 84748 (G)

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Mic/Headset connector

Name

Purpose

N/C 1 No connection

N/C 2 No connection

Headset

Headset output contains received audio.

RS232

RS232 TX

RS232

RS232 RX

N/C 6 No connection

+12VDC

+12 VDC to external amplifier (10mA)

GND

Common ground

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). 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 the

remote 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

Table 3.3-1, 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 line

The RS232serial line that can be used to control radio parameters from an external unit, or to upload new firmware into the radio unit for future functionality. Details regarding firmware upgrade is described in the maintenance and repair manual.

 Hardware key to change access level: In

P/N: 84748 (G)

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3.4 Receiver, rear connections

Figure 3.4-1, Rear view, receiver unit, RA-7203C.

3.4.1 Antenna connector (50 ohm N)

Connect directly to a receiver antenna, or to the receiver antenna connector (BNC) on the transmitter unit.

3.4.2 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)

Figure 3.4-2, Receiver DC input connector, rear view

Connector for DC supply (21.6 - 31.2 VDC). Connect to an optional 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 (-).

P/N: 84748 (G)

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LAN interface connector

Name

Purpose

LAN_TXP

Tx data

LAN_TXN

Tx data

LAN_RXP

Rx data

LAN_D3P

Optional

LAN_D3N

Optional

LAN_RXN

Rx data

LAN_D4P

Optional

LAN_D4N

Optional

AUX1 connector, receiver unit

Name

Purpose

ALARM_P

Alarm out-relay (NO)

ALARM_N

Alarm out-relay (NO)

Select_in_P

Select in, optocoupler input

RS232_S

RS232 Transmit data

RS232_R

RS232 Receive data

Select_in_N

Select in, optocoupler input

+12V

+12VDC output to external equipment (max 100mA)

GND

Common ground

3.4.3 LAN connector (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.

Table 3.4-1, LAN interface connector, pin out

3.4.4 AUX1 CONNECTOR (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the receiver.

Table 3.4-2, AUX1 connector, receiver, pin out

P/N: 84748 (G)

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AUX2 connector, receiver unit

Name

Purpose

Squelch_out_P

Closed=Receiving (Sq open), optocoupler output

Squelch_out_N

Closed=Receiving (Sq open), optocoupler output

AGC_HILO_P

Hi/Lo output depending on signal strength, optocoupler output

N/C 4

N/C 5

AGC_HILO_N

Hi/Lo output depending on signal strength

AGC_OUT

AGC analogue voltage output, depending on signal strength. Referred to GND

N/C 8

Interface to Remote equipment or a transmitter unit

Name

Purpose

RS485+

RS485 (+)

RS485-

RS485(-)

LINE_P

Line output from Receiver unit, 600 ohm

TX_BUSY

TX Busy indicator input (Mute input)

RX_BUSY

RX Busy output

LINE_N

Line output from Receiver unit, 600 ohm

INT_ALARM

Low=Alarm (Note: I/O – low input will also be recognized as an alarm (EXT))

GND

Common ground

3.4.5 AUX2 connector (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter.

Table 3.4-3, AUX2 connector, receiver, pin out

3.4.6 REM connector (RJ45)

This connector is normally connected to a mating 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, the connector gives “transceiver” functionality to the transmitter

and contains necessary signals for audio and control. The TX_BUSY and RX_BUSY signals are also used in data modes to signal that the transmitter or receiver is busy transferring data.

Table 3.4-4, REM connector, receiver, pin out

P/N: 84748 (G)

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Page 3-13

Indicators: AC: Operating on AC ON: ON (DC output)

3.5 PSU-7002, Power Supply Unit, frontview

Figure 3.5-1, PSU-7002, front view

3.5.1 LED Indicators

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 delivers 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).

P/N: 84748 (G)

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3.6 Power Supply Unit rear connectors.

Figure 3.6-1, Power supply unit - rear view

3.6.1 DC input connector (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 power output (50W). A is the positive (+) connection and B is connected to ground (-).

Figure 3.6-2, DC input connector, PSU

3.6.2 DC Output Connector(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 3.6-3, DC output, PSU

A is the positive connector pin (+) and B is connected to ground (-).

P/N: 84748 (G)

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jotron TR-7750C, TA-7650C, RA-7203C Operator's Manual

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