Jotron AS RA-7203C VHF Receiver 156.300-162.000MHz for coast stations and offshore installations requiring high quality FM voice and digital selective calling (DSC) User Manual Operators handbook TR7750

Jotron AS VHF Receiver 156.300-162.000MHz for coast stations and offshore installations requiring high quality FM voice and digital selective calling (DSC) Operators handbook TR7750

Users Manual

Jotron AS| TR7750C: Operators Manual  Introduction Page ii P/N: 84748 (G) 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
Jotron AS| TR7750C: Operators Manual  Introduction Page iii P/N: 84748 (G) 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 PA Power Amplifier PSU Power Supply Unit. Separate unit to power the equipment. PTT Push To Talk RF 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
Jotron AS| TR7750C: Operators Manual  Introduction Page iv P/N: 84748 (G) Amendment Record NO INIT DATE CHAPTERS VERSION REASONFOR CHANGE 1 ES 13.08.08 All 84748_Operators_TR7000C_A New product 2 OH 11.11.08 3.2.5, 3.2.6, 3.2.7, 3.4.4, 3.4.5, 3.4.6 B Information regarding Frequency stability, Hardware Key and protection of I/O lines added. 3 ES 29.06.09 3-5 C Information regarding type of LAN cable 4 OH 10.11.09 3.4.5, 1.1 D Pin 8 Aux 2 is N/C, Output power configuration range in radio model table. 5 BA 05.04.13 3.2.7, 3.2.8, 3.4.6, 4.6.1 E Fixed RS485 polarity error. 6 BR 28.04.14 4.4 F FCC and IC approval 7 BA 04.06.14 Page vi G Added warning statement, modification warning statement and digital device statement. 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.
Jotron AS| TR7750C: Operators Manual  Introduction Page v P/N: 84748 (G) 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.
Jotron AS| TR7750C: Operators Manual  Introduction Page vi P/N: 84748 (G) 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.
Jotron AS| TR7750C: Operators Manual  Introduction Page viii P/N: 84748 (G) 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
Jotron AS| TR7750C: Operators Manual  Introduction Page ix P/N: 84748 (G) 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
Jotron AS| TR7750C: Operators Manual  Introduction Page 1-1 P/N: 84748 (G) 1 Introduction 1.1 Models covered by this manual The following models / variants are covered by this operator’s manual 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) 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
Jotron AS| TR7750C: Operators Manual  Introduction Page 1-2 P/N: 84748 (G) 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.
Jotron AS| TR7750C: Operators Manual  Technical SPECIFICATIONS Page 2-1 P/N: 84748 (G) 2 Technical SPECIFICATIONS 2.1 General specification, Transceiver Units, TR-7750C 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 G3E G2B Keying time < 1.0ms < 1.0ms < 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 2.2 Transmitter Units, TA-7650C 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 ratio >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
Jotron AS| TR7750C: Operators Manual  Technical SPECIFICATIONS Page 2-2 P/N: 84748 (G) 2.3 Receiver Unit, RA-7203C Receiver unit FM 25 kHz FM 12.5 kHz DSC Sensitivity, FM@1V/30% pd 10dB SINAD (CCITT) Adjacent channel rejection >80dB >80dB >70dB Intermodulation (3 signal) >80 dBc IF bandwidth +/- 11kHz +/- 3.5 kHz +/- 11 kHz Image and IF frequency response >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) 2.4 Power Supply Unit, PSU-7002 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
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-1 P/N: 84748 (G) 3 Functional description 3.1 Front Panel Controls, Transmitter unit Navigationbutton A DisplayNavigationbutton BIndicators:OUT: Output power indicatorSWR: High SWR indicatorPTT buttonScroll / Select SwitchON/OFF buttonNavigationbutton CIndicators:LOW: Transmits in low powerAL: Alarm active (red)REM: Remote ready (green)STBY: Standby (yellow)Mic/Headset connector Figure 3.1-1, Front view, transmitter unit, TA-7650C/25C/10C 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: 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. 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.
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-2 P/N: 84748 (G) 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 Mic/Headset connector Name PIN Purpose Mic input 1 Dynamic. Sensitivity 2.5mV nominal. Mic GND 2 Reference input for mic signal Headset 3 Headset output, contains sidetone and/or received audio when used 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 +12 VDC to mic. Amplifier (10mA) GND 8 Common ground
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-3 P/N: 84748 (G) 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: In 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.
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-4 P/N: 84748 (G) 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.
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-5 P/N: 84748 (G) 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. LAN interface connector Name PIN Purpose LAN_TXP 1 Tx data LAN_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 3.2-1, 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. AUX1 connector, transmitterAUX Name PIN Purpose ALARM_P 1 Alarm out-relay (NO) ALARM_N 2 Alarm out-relay (NO) Select_in_P 3 Select in, optocoupler input RS232_S 4 RS232 Transmit data RS232_R 5 RS232 Receive data Select_in_N 6 Select in, optocoupler input +12V 7 +12VDC output to external equipment (max 300mA) GND 8 Common ground Table 3.2-2, AUX1 connector, transmitter, pin out
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-6 P/N: 84748 (G) 3.2.6 AUX2 connector (RJ45) This connector is normally connected to equipment used for remote control / remote supervision of the transmitter. AUX2 connector, transmitter Name PIN Purpose KEY_OUT_P 1 Closed=Transmitting, optocoupler output KEY_OUT_N 2 Closed=Transmitting, optocoupler output MONITOR_P 3 Monitor output to tape recorder TXLOW_P 4 Applying a voltage > 5VDC between pin 4 and 5 forces the transmitter into low power TXLOW_N 5 Applying a voltage > 5VDC between pin 4 and 5 forces the transmitter into low power MONITOR_N 6 Monitor output to tape recorder TXKEY_P 7 Applying a voltage > 5VDC between pin 7 and 8 will key the transmitter TXKEY_N 8 Applying a voltage > 5VDC between pin 7 and 8 will key 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. REM connector, transmitter – Remote control of transceiver Name PIN Purpose RS485+ 1 RS485 (+) RS485- 2 RS485(-) LINE_P 3 Diff. line input/output to TA/RA, 600 ohm TX_KEY_G 4 Grounding this pin will key transmitter RX_BUSY_OUT 5 RX Busy indicator output (squelch indicator) LINE_N 6 Diff. line input/output to TA/RA, 600 ohm ALARM 7 Low=Alarm (TA or TA/RA) GND 8 Common ground Table 3.2-4, REM connector, transmitter, pin out 5 6 7 8 9
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-7 P/N: 84748 (G) 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. Rx connector, transmitter. Interface to RX (transceiver config) Name PIN Purpose RS485+ 1 RS485 (+) RS485- 2 RS485(-) LINE_P 3 Diff. line input from Receiver unit, 600 ohm TX_BUSY 4 TX Busy indicator output (Mute output) RX_BUSY 5 RX Busy optocoupler-input (Repeater key input) LINE_N 6 Diff. line input from Receiver unit, 600 ohm INT_ALARM 7 Low=Alarm (Note: I/O – low input will also be recognized as an alarm (EXT)) GND 8 Common ground Table 3.2-5, Rx connector, transmitter, pin out
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-8 P/N: 84748 (G) 3.3 Front Panel Controls, Receiver unit Navigationbutton A DisplayNavigationbutton BScroll / Select SwitchON/OFF buttonSq / Navigationbutton CIndicators:SQ: Squelch open (yellow)AL: Alarm active (red)REM: Remote ready (green)STBY: Standby (yellow)Headset connector Loudspeaker Figure 3.3-1, Front view, receiver unit, RA-7203C 3.3.1 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. 3.3.2 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.
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-9 P/N: 84748 (G) 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 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. Mic/Headset connector Name PIN Purpose N/C 1 No connection N/C 2 No connection Headset 3 Headset output contains received audio. RS232 4 RS232 TX RS232 5 RS232 RX N/C 6 No connection +12VDC 7 +12 VDC to external amplifier (10mA) GND 8 Common ground
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-10 P/N: 84748 (G) 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 (-).
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-11 P/N: 84748 (G) 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. LAN interface connector Name PIN Purpose LAN_TXP 1 Tx data LAN_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 3.4-1, 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. AUX1 connector, receiver unit Name PIN Purpose ALARM_P 1 Alarm out-relay (NO) ALARM_N 2 Alarm out-relay (NO) Select_in_P 3 Select in, optocoupler input RS232_S 4 RS232 Transmit data RS232_R 5 RS232 Receive data Select_in_N 6 Select in, optocoupler input +12V 7 +12VDC output to external equipment (max 100mA) GND 8 Common ground Table 3.4-2, AUX1 connector, receiver, pin out
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-12 P/N: 84748 (G) 3.4.5 AUX2 connector (RJ45) This connector is normally connected to equipment used for remote control / remote supervision of the transmitter. AUX2 connector, receiver unit Name PIN Purpose Squelch_out_P 1 Closed=Receiving (Sq open), optocoupler output Squelch_out_N 2 Closed=Receiving (Sq open), optocoupler output AGC_HILO_P 3 Hi/Lo output depending on signal strength, optocoupler output N/C 4 N/C 5 AGC_HILO_N 6 Hi/Lo output depending on signal strength AGC_OUT 7 AGC analogue voltage output, depending on signal strength. Referred to GND N/C 8 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. Interface to Remote equipment or a transmitter unit Name PIN Purpose RS485+ 1 RS485 (+) RS485- 2 RS485(-) LINE_P 3 Line output from Receiver unit, 600 ohm TX_BUSY 4 TX Busy indicator input (Mute input) RX_BUSY 5 RX Busy output LINE_N 6 Line output from Receiver unit, 600 ohm INT_ALARM 7 Low=Alarm (Note: I/O – low input will also be recognized as an alarm (EXT)) GND 8 Common ground Table 3.4-4, REM connector, receiver, pin out 5 6 7 8 9
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-13 P/N: 84748 (G) 3.5 PSU-7002, Power Supply Unit, frontview Indicators:AC: Operating on ACON: ON (DC output) 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).
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-14 P/N: 84748 (G) 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 (-).
Jotron AS| TR7750C: Operators Manual  Functional description Page 3-15 P/N: 84748 (G) 3.6.3 AC Input connector Input for external AC. AC is input between A and C, B is chassis ground. The voltage range is from 85 to 250 VAC Figure 3.6-4, AC input connector, PSU
Jotron AS| TR7750C: Operators Manual  Installation Page 4-1 P/N: 84748 (G) 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 Reference 1 Initial inspection 4.2 2 Install equipment into 19” sub racks (equipment cabinet) 4.3 3 Connect chassis stud to system earth or cabinet Figure 3.2-1 (TX) Figure 3.4-1 (RX) Figure 3.6-1 (PSU) 4 Connect remote connectors as required 4.6 5 Connect antenna connectors 4.4 6 Connect DC supply (if required) 4.5 7 Connect AC supply (if required 4.5 Table 4.1-1, Installation procedures 4.2 Initial inspection Items included for a TA-7650C transmitter P/N 1 Radio unit TA-7650C1 84555 2 Power supply unit PSU-7002 82417 3 Interconnecting cord between TA and PSU 81725 4 CD with Operators guide 84417 5 DC connector 96715 6 AC power cord 92375 Items included for a RA-7203C receiver P/N 1 Radio unit RA-7203C 84550 2 CD with Operators guide 84417 3 DC connector 96715 4 AC power cord 92375 On 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. 1Variants may include: - Reduced maximum power level <50 W - PM modulation - Frequency range 156 – 162MHz - Inband ptt signalling (option: 84358) - Inband squelch signalling (option: 84358)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-2 P/N: 84748 (G) 4.3 Installation into equipment cabinet The units may be installed into a standard 19” subrack with a height of 3U. The total subrack is divided into 84 TE units. 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 4.3-1 shows some examples for installation into 19” subrack. From top to bottom the figure shows: 6 receivers in one subrack, 2 transmitters with PSU in one subrack and 3 transmitters without PSU (operated on DC) in one subrack. Figure 4.3-1, Examples of various configurations 4.4 Antenna connectors The antenna should be of good quality with regards to gain and VSWR to obtain maximum performance. Recommended antennas can be Procom CXL-2-1LW/H (0dBd), Procom CXL-2-3C/M (3dBd) or similar. 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. The antenna used with this radio should be installed at least 260cm away from any area where people are likely to be. 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 between the antenna connector and the antenna cable. 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 on the back of the transmitter. The second connector (BNC-type) is the output of the antenna switch and can be used to connect the input of a receiver. 4.5 AC and DC connectors Refer to section 3.4.2, 3.6.1 and 3.6.3 for voltages and connectors. 4.6 Remote signals Several 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
Jotron AS| TR7750C: Operators Manual  Installation Page 4-3 P/N: 84748 (G) 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 0 for and overview of the different connectors. 4.6.1 REM connector (receiver) and RX connector (transmitter) TX - REM/RX RX - REM PIN NAME DESCRIPTIONPin no Pin no1 1RS485+ RS485 - serial communication2 2RS485- RS485 - serial communication3 3LINE_P RX Audio 600ohm balanced4 4TX BUSY TTL L=transmitting (RX pullup)5 5RX BUSY TTL L=receiving (TX pullup)6 6LINE_N RX Audio 600ohm balanced7 7ALARM Alarm (TTL) I/O TRX alarm8 8GND GroundCABLE4 pairsRJ45 - Cat 5E, FTP Table 4.6-1, Transceiver, transmitter – receiver interconnections The RX connector on the transmitter unit has a special function, and is normally used only in a “transceiver” configuration. When connecting the signals on the transmitter RX connector with the signals on the receivers REM connector, 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 enables the possibility to monitor the audio from the receiver from the transmitter headphone connector, allowing only one plug to be used for a combined headset/microphone. In addition, it enables the possibility to use a 2 wire interface to the transmitters audio input line for the combined transmitter and receiver audio. Finally, it enables the functionality to monitor both the transmitted audio and the received audio on the monitor output (TA-AUX2) line 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.  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.
Jotron AS| TR7750C: Operators Manual  Installation Page 4-4 P/N: 84748 (G)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-5 P/N: 84748 (G) Menu path: Interface config ► Parameter Range Default Details RS485 (TX and RX) Bitrate 1200 – 115200 1200 Set the bit rate to use on the RS485 port RS485 (TX and RX) Address 1 – 255 1 Set the address to use on the RS485. In a remote system using the RS485 communication port, all units that are interconnected need to have a unique address in order to avoid collisions and misinterpretation of data. RS485 (TX and RX) Protocol Legacy | standard Legacy The protocols are described in the data manual. Legacy uses a protocol where the 9. bit is used for address recognition, this is the protocol used on the previous radio models (TA7450, RA7202) and is compatible with the RACS II PC software and the RCU remote control unit. Standard is an eight bit protocol that uses the multidrop capability of the RS485 bus. For more information on protocols, refer to the SW manual. Menu path: RX config ► Parameter Range Default Details Audio ( RX) Mute on transmit False | True True Set this to true if the receiver should be muted while transmitting. Requires that the Tx busy signal on the transmitters RX connector is routed to the TX busy input on the receiver REM connector. (p.4) Table 4.6-2, Settings associated with the transmitter - receiver interconnection
Jotron AS| TR7750C: Operators Manual  Installation Page 4-6 P/N: 84748 (G) 4.6.2 Audio in/out and Line loop keying Figure 4.6-1, Audio interfaces on the transmitter and receiver units With reference to Figure 4.6-1, the following audio remote signals are available on the rear connectors:  Monitor out: Monitor signal, usually connected to a recording unit. Menu path: TX config ► Parameter Range Default Details Audio (TX) Monitor output Headset | Monitor output Monitor output Set where the monitor output signal and the received audio (if a receiver is connected) is routed. Can be set to the headset connector, the 600 ohm monitor line output or both. The monitor signal is the demodulated signal detected on the output of the transmitter. Audio (TX) Monitor level -80 – 10 dB -50 dB Set the relative output level of the monitor signal. 10dB = max output, -80dB=minimum Table 4.6-3, Settings associated with MONITOR OUTPUT (TA – AUX1)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-7 P/N: 84748 (G)  Line input, transmitter: This is the transmitter audio line input. This signal is usually connected to a VCS system or a remote control that uses a 600 ohm line interface. Menu path: TX config ► Parameter Range Default Details Audio (TX) Input source Auto | Line | Mic | modgen | VoIP Auto The input source determines where the audio is applied to the transmitter.  Auto: Uses line input for when a key signal is detected on one of the remote connectors and mic input if the key signal is detected on the front panel connector.  Line: Uses the 600 ohm line interface as the audio source  Mic: Uses the microphone input as the audio source  Modgen: Uses the internal modgen as audio input source – se also Modgen frequency  VoIP: Uses the IP interface as the audio source (availability depends on radio specifications). Audio (TX) Line sensitivity -40 – 0 dBm 1 dB steps -17 dBm Set the sensitivity of the 600 ohm line input. This setting determines where the VOGAD (automatic gain control) start to operate. Thus if it is set to -17 dBm, levels above -17 dBm will be modulated with 85% (default setting). For levels below -17 dBm the modulation will decrease linearly. Audio (TX) Line termination OFF | 600 ohm 600 ohm Set the termination of the input line to either OFF or 600 ohm. Normally this is set to 600 ohm, but can be set to OFF on one of the radios, if two transmitters are connected in parallel. This is to maintain the 600 ohm impedance on the lines. Audio (TX) Line mute level OFF or -40 to -10dBm 1 dB steps OFF Below this level, the line input will be muted. Used where noisy lines are connected to the transmitter to avoid unnecessary noise on the produced RF signal during periods of silence (Automatic transmissions; VOLMET, ATIS) Keying (TX) Source Mic, line, txkey, txgnd, inband Mic, txkey Determines what signal that will be used as the source for keying the transmitter. Any combinations can be set  Mic: Local PTT input from a microphone, where the PTT is connected to pin 4 and 8(gnd) on the Mic/headset connector.  Line: Keying from a phantom signal on the line input. Pin 3 and 6 on the Rem/TR connector.  Txkey: The transmitter is keyed by an external voltage on the TXKEY_P and TXKEY_N input pins. Signals located on Pin 7 and 8 on the | connector.  Txgnd: The transmitter is keyed by a signal on the TXKEY_G input pin Signals are located on Pin 4 and 8 (gnd) on the REM/TR connector.  Inband: The transmitter is keyed using an inband tone (see also inband frequency and inband sensitivity)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-8 P/N: 84748 (G) Menu path: TX config ► Parameter Range Default Details Keying (TX) Loop key bias +12V, Gnd, floating Floating Connects the center pin of the line input transformer to:  Floating: The center pin is not connected. If loop keying is used, an external voltage must be applied to pin 3 (REM connector) in order to key the transmitter  Gnd: The center pin is grounded. If loop keying is used, an external voltage must be applied to pin 3 (REM connector) in order to key the transmitter.  +12V: A 12V DC is supplied on pin 3(REM/TR connector). The transmitter can be keyed with a relay (or equivalent) that create a DC path on the line input pin, pin 3 and 6 (REM/TR connector). Table 4.6-4, Settings associated with LINE_INPUT (TX-REM)  Line output, receiver: This is the receiver audio line output. This signal is usually connected to the VCS system or a remote control that uses a 600 ohm line interface. Menu path: RX config ► Parameter Range Default Details Audio (RX) Output source Speaker | Headphone | Lineout | VoIP Speaker, Headphone, Lineout The output source determines where the received audio is output.  Line: Output audio on the 600 ohm line interface  Speaker: Output audio on the integrated speaker.  Headphone: Output audio to a headphone connected to the front panel connector.  VoIP: Output audio on the IP interface (availability depends on radio specifications). Audio (RX) Line output level -40 to +10 dBm 1 dB steps -10 dBm Set the maximum output level on the 600 ohm line output. Table 4.6-5, Settings associated with LINE_OUTPUT (RX-REM)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-9 P/N: 84748 (G) 4.6.3 Other key signals Figure 4.6-2, 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_G This is a signal available on the transmitter REM connector, pin 4. This signal, if connected to GND will key the transmitter.  TXKEY_P, TXKEY_N This is a differential signal, available on the transmitter AUX2 connector, pin 7 and 8. This signal will key the transmitter if a voltage between 12 and 48 V is fed between them. 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).
Jotron AS| TR7750C: Operators Manual  Installation Page 4-10 P/N: 84748 (G) Menu path: TX config ► Parameter Range Default Details Keying (TX) Source Mic, line, txkey, txgnd, inband Mic, txkey Determines what signal that will be used as the source for keying the transmitter. Any combinations can be set  Mic: Local PTT input from a microphone, where the PTT is connected to pin 4 and 8(gnd) on the Mic/headset connector.  Line: Keying from a phantom signal on the line input. Pin 3 and 6 on the Rem/TR connector.  Txkey: The transmitter is keyed by an external voltage on the TXKEY_P and TXKEY_N input pins. Signals located on Pin 7 and 8 on the | connector.  Txgnd: The transmitter is keyed by a signal on the TX_KEY_G input pin Signals are located on Pin 4 and 8 (gnd) on the REM/TR connector.  Inband: The transmitter is keyed using an inband tone (see also inband frequency and inband sensitivity) Table 4.6-6, Key Source settings
Jotron AS| TR7750C: Operators Manual  Installation Page 4-11 P/N: 84748 (G) 4.6.4 Squelch and AGC signals, receiver unit Figure 4.6-3, Squelch and AGC signals receiver unit  RX_BUSY (REM, p.5) Squelch output signal that is referenced to GND. This signal can be used to detect that the receiver is busy on a connected transmitter unit, on a remote control or an other unit that can use this signal. The signal polarity can be configured.  SQUELCH (AUX2, p.1 and p.2) This signal indicates that the squelch is activated / closed. The polarity 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 signal comes from a collocated transmitter operating on the same frequency or a transmission from an aircraft.  AGC VOLTAGE (AUX2, p.7) This is an analogue output 0-5V. The output voltage is 0V for an input of xxx uV and increases linearly with the input signal up to xxx uV where the voltage reach +5V.
Jotron AS| TR7750C: Operators Manual  Installation Page 4-12 P/N: 84748 (G) Menu path: RX config ► Parameter Range Default Details Squelch SqOut output Closed | Open | Closed on busy| Open on busy Closed on busy Set the behavior of the SqOut output (AUX2, pin 1 and pin 2). Squelch RxBusy output Closed | Open | Closed on busy| Open on busy Closed on busy Set the behavior of the RxBusy output (REM, pin 5). Table 4.6-7, Squelch output configuration 4.6.5 Alarm and Select signals transmitter and receiver Figure 4.6-4, Alarm and select signals, transmitter The alarm signals are outputs used to signal that the radio units has detected an alarm internally. The Select signal is used to select or deselect (inhibit) a particular unit. By deselecting a unit, the unit will enter into standby and can not be used for radio communication. However, all other functionality of the radio units is operational when the radio is in the standby state. The pinout and signals are equal on the transmitter and the receiver unit, except the ALARM (REM, p.7) pin. This pin has a fixed +5V pull-up on the receiver, while the pull-up is configurable on the transmitter.
Jotron AS| TR7750C: Operators Manual  Installation Page 4-13 P/N: 84748 (G)  ALARM_P, ALARM_N (AUX1, pin 1 and 2) This is a differential signal, used to signal the alarm state. The radio can be set up with an internal pull-up to +12V if desired.  ALARM (REM, pin 7) Same as the signal above, but this signal is referenced to GND.  SELECT (AUX1, pin 3 and 6) This input is connected to an optocoupler. The SELECT requires an external voltage to operate. One way to use the SELECT signal is in conjunction with the ALARM output signal from another radio unit. If the ALARM signal (ALARM_P and ALARM_N) on a primary (main) radio is connected to the SELECT_P and SELECT_N on a secondary (backup) radio, then automatic switchover from the main to the standby radio is performed when the main radio detects an alarm. In this mode, a pull-up is required on the ALARM output from the primary radio. Menu path: Interface config ► Parameter Range Default Details Alarm config (TX and RX) Alarm pin pull-up Disabled | Enabled Enabled The ALARM_OUT_P and ALARM_OUT_N output pins on AUX1 is used to signal that the radio has an alarm. This parameter applies a pull up voltage to ALARM_OUT_P when there are no alarms present. When an alarm is detected the relay contact close. Alarm config (TX and RX) Select polarity High | Low Low The SELECT_IN_P and SELECT_IN_N input pins on AUX1 can be used to select / deselect (Standby) the radio with an external signal (e.g. alarm from a main radio). This setting determines if the radio should be operational on a low select input signal or a high select input signal. Table 4.6-8, Alarm and Select settings, transmitter and receiver
Jotron AS| TR7750C: Operators Manual  Installation Page 4-14 P/N: 84748 (G) 4.6.6 Miscellaneous signals, transmitter Figure 4.6-5, Misc signals, transmitter  RX BUSY (SQ) (REM, pin 5) This signal is only available when a receiver is connected with a 8 pin bus between the transmitter RX and the receiver REM connector. The signal is the same as the RX BUSY from the receiver, settings are done on the receiver unit.  KEY_OUT_P, KEY_OUT_N (AUX2, pin 1 and 2) This output can be used for external equipment that needs a key signal from the transmitter. The key signal is available immediately after a key input is received on any of the key inputs. Normally RF is produced only a few ms (<10ms) after a key signal is applied to the transmitter. If the KEY_OUT is used for external equipment that used relays for switching the RF, it is necessary to delay the RF output, this can be done with a software setting, see below.  TXLOW_P, TXLOW_N (AUX2, pin 4 and 5) This input is used to immediately switch the transmitter into low power. The input requires an external pull-up to work. The low power level can be adjusted with a software setting. Menu path: Radio control ► Parameter Range Default Details
Jotron AS| TR7750C: Operators Manual  Installation Page 4-15 P/N: 84748 (G) Menu path: Radio control ► Parameter Range Default Details Low power level (TX) 30 – 41 dBm 1 dB steps 41 dBm Set the low power level of the transmitter in 1 dB steps. The low power level is the output power of the transmitter when the transmitter is set to low power, either by a command or by an external input signal. 30 dBm corresponds to 1W output, 41 dBm is 12W ouput. Menu path: TX config ► Parameter Range Default Details Keying (TX) RF delay 0 – 200 ms 0 (OFF) This setting is useful when the transmitter is used together with external equipment such as T/R relays, power amplifier or other equipment that includes RF switchover relays. Since the RF switching in the transmitter is done electronically, the RF is produced in less than 10ms after the PTT signal is detected. It could be harmful for the external relays if the RF is applied to them before switchover has occurred. In order to delay the RF carrier this parameter should be used under such circumstances. A reasonable setting should be in the order of 40-50 ms. Table 4.6-9, Misc. settings, transmitter. 4.7 Applications 4.7.1 Transceiver, local configuration In a transceiver setup for local configuration, the mic and headset signals are interfaced to the microphone/headset connector on the transmitter. The headphone signal can also be derived from the headset connector on the transmitter. Connection for local operation is shown in Figure 4.7-1 and tab. Figure 4.7-1, Transceiver, Local configuration, interfacing
Jotron AS| TR7750C: Operators Manual  Installation Page 4-16 P/N: 84748 (G)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-17 P/N: 84748 (G) Step Description Reference 1 Connect an 8 wire Cat5e cable between TA-RX connector and RA-REM connector. 4.6.1 - Pin description 2 Set the Mute on transmit to enabled (receiver) 5.9.2 - RX config group 3 Set Audio output source to Lineout (receiver) 5.9.2 - RX config group 4 Set Audio input source to mic (transmitter) 5.5.2 – TX config group 5 Set Monitor output to headset (transmitter) 5.5.2 – TX config group 6 Set Keying source to include mic (transmitter) 5.5.2 – TX config group 7 Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver. Alternatively, use separate antennas for the TA and RA. 3.2.2 and 3.4.1 Other useful signals in Local configuration: AUX1 Alarm out, Select in, RS232, +12V 3.2.5 (transmitter AUX1) and 3.4.4 (receiver AUX1) TA-AUX2 Key out relay, Monitor output, TX_LOW (Gas alarm) input, TXKEY 3.2.6 (transmitter AUX2) RA- AUX2 Squelch out relay, AGC HILO output, AGC voltage output 3.4.6 (receiver AUX2) TA – REM RS485, Line input, Key, Squelch, Alarm 3.2.7 (transmitter REM) Table 4.7-1, Transceiver, Local configuration
Jotron AS| TR7750C: Operators Manual  Installation Page 4-18 P/N: 84748 (G) 4.7.2 Transceiver, remote configuration In a transceiver setup for remote configuration, the audio is fed into the transmitter and the received audio is output from the receiver on the 600 ohm lines. The line can either be a 2 wire (2W) audio line connected to the transmitter only, or a 4 wire (4W) interface connected to the transmitter and the receiver units. Figure 4.7-2, Transceiver, Remote configuration with 2 wire audio interface Step Description Reference 1 Connect an 8 wire Cat5e cable between TA-RX connector and RA-REM connector. 4.6.1 - Pin description 2 Set Mute on transmit to enabled (receiver) – if desired 5.9.2 - RX config group 3 Set Audio output source to Lineout (receiver) 5.9.2 - RX config group 4 Set Audio input source to line (transmitter) 5.5.2 – TX config group 5 Set Keying source to include txkeygnd 5.5.2 – TX config group 6 Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver. Alternatively, use separate antennas for the TA and RA. 3.2.2 and 3.4.1 Other useful signals in Remote configuration: AUX1 Alarm out, Select in, RS232, +12V 3.2.5 (transmitter AUX1) and 3.4.4 (receiver AUX1) TA-AUX2 Key out relay, Monitor output, TX_LOW (Gas alarm) input, TXKEY 3.2.6 (transmitter AUX2) RA- AUX2 Squelch out relay, AGC HILO output, AGC voltage output 3.4.6 (receiver AUX2) TA – REM RS485, Line input, Key, Squelch, Alarm 3.2.7 (transmitter REM)
Jotron AS| TR7750C: Operators Manual  Installation Page 4-19 P/N: 84748 (G) Table 4.7-2, Transceiver, Remote (2W) interface Figure 4.7-3, Transceiver, Remote configuration with 4 wire audio interface Step Description Reference 1 For audio line interfaces refer to the reference 4.6.2 – Audio interface 3 Set Audio output source to Lineout (receiver) 5.9.2 - RX config group 4 Set Audio input source to line (transmitter) 5.5.2 – TX config group 5 Set Keying source to include txkeygnd ( or other signal if desired) 5.5.2 – TX config group 6 Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver. Alternatively, use separate antennas for the TA and RA. 3.2.2 and 3.4.1
Jotron AS| TR7750C: Operators Manual  Installation Page 4-20 P/N: 84748 (G) Step Description Reference Other useful signals in Remote configuration: AUX1 Alarm out, Select in, RS232, +12V 3.2.5 (transmitter AUX1) and 3.4.4 (receiver AUX1) TA-AUX2 Key out relay, Monitor output, TX_LOW (Gas alarm) input, TXKEY 3.2.6 (transmitter AUX2) RA- AUX2 Squelch out relay, AGC HILO output, AGC voltage output 3.4.6 (receiver AUX2) TA – REM RS485, Line input, Key, Squelch, Alarm 3.2.7 (transmitter REM) Table 4.7-3, Transceiver, Remote (4W) interface 4.7.3 Transmitter, main / backup configuration By connecting the alarm output from one (main) transmitter to the select input on a backup unit, it is possible to perform automatic switching between them. In this way, if a main transmitter detects an internal failure, it can be set up to enter into standby mode and stop transmissions. The alarm signal will also signal to a backup unit to take over the transmit function.
Jotron AS| TR7750C: Operators Manual  Installation Page 4-21 P/N: 84748 (G) Figure 4.7-4, Main / Backup transmitter Step Description Reference 1 Connect the alarm_out signal (p.1,2) from AUX1 on the main transmitter to the select_in signal (p.3.6) on AUX1 on the standby transmitter. The connection can be done via a distribution panel or by making a special with RJ45 connectors in each end. The cables used should be of the same quality as a CAT5E network cable and the screen should be connected in the plugs. 3.2.5 – AUX1 connector 2 Set Alarm config, Alarm pin pullup to Enabled (default) 5.5.3 – Interface config group 3 Set Alarm config, Select polarity to Low (default) 5.5.3 – Interface config group 4 Set the main transmitter Operation mode to Main 5.5.1 – Radio control group 5 Set the backup transmitter Operation mode to Norm (default) 5.5.1 – Radio control group 6 Connect separate antennas to the two transmitters. Alternatively use an external antenna change over unit (ACU) in order to switch the antenna between the main and standby transmitters. The antenna change over unit can be controlled by the alarm signal on the main unit Table 4.7-4, Main/backup configuration, transmitters
Jotron AS| TR7750C: Operators Manual  Installation Page 4-22 P/N: 84748 (G) 4.7.4 Receiver, main / backup configuration By connecting the alarm output from one (main) receiver to the select input on a backup unit, it is possible to perform automatic switching between them. In this way, if a main transmitter detects an internal failure, it can be set up to enter into standby mode and stop reception of signals. The alarm signal will also signal to a backup unit to take over the receive function. Figure 4.7-5, Main / Backup receiver Step Description Reference 1 Connect the alarm_out signal (p.1,2) from AUX1 on the main receiver to the select_in signal (p.3.6) on AUX1 on the standby receiver. The connection can be done via a distribution panel or by making a special with RJ45 connectors in each end. The cables used should be of the same quality as a CAT5E network cable and the screen should be connected in the plugs. 3.4.4 – AUX1 connector 2 Set Alarm config, Alarm pin pullup to Enabled (default) 5.8.3 – Interface config group 3 Set Alarm config, Select polarity to Low (default) 5.8.3 – Interface config group 4 Set the main receiver Operation mode to Main 5.8.1 – Radio control group 5 Set the backup receiver Operation mode to Norm (default) 5.8.1 – Radio control group 6 Connect separate antennas to the two receivers. Alternatively use an external antenna change over unit (ACU) in order to switch the antenna between the main and backup receivers. The antenna change over unit can be controlled by the alarm signal on the main unit. The antenna connection can also be done via a pair of main/backup transmitters. Table 4.7-5, Main/backup configuration, receivers
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-1 P/N: 84748 (G) 5 Operating Instructions 5.1 Introduction To set up the transmitter and receiver units, several parameters can be selected from the front panel. This section details how this is done and the range of all parameters. Since the radio units contains no manual tuning points or switches, all parameters can in principal be set from the front panel, however except in some rare occasions, most parameters should be left at their default (factory preset) values. There are 4 user levels that can be selected to limit the user access to certain parameters. The user levels can be set on one of the data interface ports. There is also a way to override the user levels, described in the technical manual. These user levels are:  Restricted Limits front panel operation to selecting preset channels and adjusting audio output levels and display appearance. Use this level when the radio units are used from a remote position or in cases where the user should be restricted to use preset channels only (1 – 100).  Operation Same as restricted, but in addition the local user has full access to changing and storing frequencies, and to change the squelch level.  Technician This level gives the local user access to the most used installation specific parameters (line levels, output power, etc.) and should be used when installing or maintaining the radio units.  SysOp This level gives unlimited access to all parameters within the radio units and should be used with care. In the following section, these symbols and abbreviations are used to explain navigation in menus / setting of values:  Scroll/Select switch =  Navigation button A (left button) =  Navigation button B (middle button) =  Navigation button C (right button) =  Clockwise = CW  Counter Clockwise = CCW
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-2 P/N: 84748 (G) 5.2 User menu – transmitter (Restricted access level) Main display window in restricted mode. Display Description When the transmitter is switched on, it will show the channel, the frequency and the operation mode (FM). Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the audio output level screen. This setting adjusts the audio level output at the front panel microphone/headset connector. Rotate CW or CCW to adjust the headset level. Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press to return to the default screen Pressing from the main display will bring up the menu options available for the current user level. Menus for user level: Restricted For details regarding submenus, refer to chapter 5.4. Table 5.2-1, User menu selections transmitter - restriced access level
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-3 P/N: 84748 (G) 5.3 User menu – transmitter (Default access level) Main display window for user levels: Operator, Technician and SysOp. Display Description When the transmitter is switched on, it will show the channel, the frequency,and the operation mode (FM). Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the audio output level screen. This setting adjusts the audio level output at the front panel microphone/headset connector. Rotate CW or CCW to adjust the headset level. Press to navigate to the channel select screen. Select channel number by rotating CW or CCW. Confirm new channel with or . Confirm with or . If the channel is already programmed, the channel may be cleared using Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press to return to the default screen Pressing from the main display will bring up the menu options available for the current user level. Menus for user level: Operator For details regarding submenus, refer to chapter 5.4. Menus for user level: Technician For details regarding submenus, refer to chapter 5.4. Menus for user level: SysOp For details regarding submenus, refer to chapter 5.4. Table 5.3-1, User menu selections transmitter- Operator, Technician and SysOp access levels
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-4 P/N: 84748 (G) 5.4 Setting, information and configuration menus – transmitter Under the menu selection from the user menu, various submenu groups are available depending on the user level. The submenus and details for them are shown in the tables below. Submenu Access level Description Radio control ► SysOp, Technician Access to operation mode, low power level, climax offset parameters, modulation and standby settings. TX config ► SysOp Access to configuration parameters for modulation, audio settings, key (PTT) settings and internal calibration settings. Interface config ► SysOp Access to configuration parameters for the ethernet interface, RS232 port, RS485 port, various pin settings on the hardware interface (remote connectors) and the user access level. Bite system ► SysOp, Technician Displays information about active alarms and gives the user access to internal measurements. System info ► All Displays information about the firmware and hardware release, system up-time and radio identification Table 5.4-1, Submenus available on the transmitter
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-5 P/N: 84748 (G) 5.4.1 Radio control group SysOp and Technician access levels. Refer to section 5.5.1 for details. Figure 5.4-1, Radio control group, transmitter 5.4.2 TX config group SysOp access level. Refer to section 5.5.2 for details. Figure 5.4-2, TX config group, transmitter
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-6 P/N: 84748 (G) 5.4.3 Interface config group SysOp access level. Refer to section 5.5.3 for details. Access controlSet the user access level for local operationLANSet parameters for ethernet (IP) communication. IP address, ports to use, Gateway, etc.RS232Set parameters for RS232 serial communication. Bitrate and protocolRS485Set parameters for RS485 serial communication. Bitrate, protocol and addressAlarm configSet pullup for the external alarm pin and polarity for select signalLanguageChange the language for local control. Availability varies with modelInterface configMENURackSet parameters to identify location of the radio:Rack number, Row and column Figure 5.4-3, Interface config group, transmitter
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-7 P/N: 84748 (G) 5.4.4 Bite system group SysOp and Technician access levels. Refer to section 5.5.4 for details. MeasurementsMeasure power levels, voltages, currents, lock detect, etc.AlarmsDisplay active alarms. Identifies modules and parameter with failure.Bite systemMENU Figure 5.4-4, Bite system group, transmitter 5.4.5 System info group All access levels. System infoID, FW and HW release info. Radio uptime.MENU Figure 5.4-5, System info group, transmitter
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-8 P/N: 84748 (G) 5.5 Parameter details – transmitter 5.5.1 Radio control group Menu path: Radio control ► Parameter Range Default Details Operation mode Main | Norm Norm A main radio will enter into standby if an alarm is detected by the internal BITE system. A norm radio will continue operation (if possible) even if a failure is detected. In a main / standby configuration, the main radio is set to Main and the standby radio is set to Norm. In this way the control can automatically be transferred to the standby radio by using the available alarm output and select input on the radios. Low power level 30 – 41 dBm 1 dB steps 41 dBm Set the low power level of the transmitter in 1 dB steps. The low power level is the output power of the transmitter when the transmitter is set to low power, either by a command or by an external input signal. 30 dBm corresponds to 1W output, 41 dBm is 12W ouput. Modulation FM FM Select the modulation type / waveform to use. Availability depends on radio specifications. Alarm On | Off Off This setting force the radio into alarm state (forced alarm) if set to On. Used for simulations, or to force a radio to signal an alarm in order to select a backup (standby) radio. Standby On | Off Off This setting force the radio into standby state (forced standby) if set to On. Used to manually set a radio to standby. Table 5.5-1, Radio control group, transmitter 5.5.2 TX config group Menu path: TX config ► Parameter Range Default Details FM Output power 30 – 47 dBm 1 dB steps 47 dBm Set the output power for FM operation. Max. level depends on radio model and is:  47 dBm for TA7650C FM Modulation Up to ±5kHz deviation ±5kHz Set the deviation for FM operation.
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-9 P/N: 84748 (G) Menu path: TX config ► Parameter Range Default Details Audio Input source Auto | Line | Mic | modgen | VoIP Auto The input source determines where the audio is applied to the transmitter.  Auto: Uses line input for when a key signal is detected on one of the remote connectors and mic input if the key signal is detected on the front panel connector.  Line: Uses the 600 ohm line interface as the audio source  Mic: Uses the microphone input as the audio source  Modgen: Uses the internal modgen as audio input source – se also Modgen frequency  VoIP: Uses the IP interface as the audio source (availability depends on radio specifications). Audio Mic sensitivity -40 – 0 dBm 1 dB steps -25 dBm Set the gain (sensitivity) for the microphone connected to the front panel connector. Use this setting to increase or decrease the gain if needed. Setting depends on microphone used. Audio Line sensitivity -40 – 0 dBm 1 dB steps -17 dBm Set the sensitivity of the 600 ohm line input. This setting determines where the VOGAD (automatic gain control) start to operate. Thus if it is set to -17 dBm, levels above -17 dBm will be modulated with 85% (default setting). For levels below -17 dBm the modulation will decrease linearly. Audio Line termination OFF | 600 ohm 600 ohm Set the termination of the input line to either OFF or 600 ohm. Normally this is set to 600 ohm, but can be set to OFF on one of the radios, if two transmitters are connected in parallel. This is to maintain the 600 ohm impedance on the lines. Audio Line mute level OFF or -40 to -10dBm 1 dB steps OFF Below this level, the line input will be muted. Used where noisy lines are connected to the transmitter to avoid unnecessary noise on the produced RF signal during periods of silence (Automatic transmissions; VOLMET, ATIS) Audio Monitor output Headset | Monitor output Monitor output Set where the monitor output signal and the received audio (if a receiver is connected) is routed. Can be set to the headset connector, the 600 ohm monitor line output or both. The monitor signal is the demodulated signal detected on the output of the transmitter. Audio Monitor level -80 – 10 dBm -50 dBm Set the relative output level of the monitor signal. Audio VOGAD Off, x-fast, fast, norm, slow, x-slow Norm Set the attack and decrease time of the automatic gain control (VOGAD).  Off is used only for maintenance purposes. Audio Modgen frequency 100 – 5000 Hz 1 Hz steps 1003 Hz Set the frequency of the internal modulation generator. Used in conjunction with the Audio input source Audio Line=>Head gain -10 to +20 dB 0 dB Defines the scaling factor of the Rx Audio on the headset output when the transmitter is connected to a receiver. The level is a relative value -10 to +20 dB
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-10 P/N: 84748 (G) Menu path: TX config ► Parameter Range Default Details Keying Source Mic, line, txkey, txgnd, inband Mic, txkey Determines what signal that will be used as the source for keying the transmitter. Any combinations can be set  Mic: Local PTT input from a microphone, where the PTT is connected to pin 4 and 8(gnd) on the Mic/headset connector.  Line: Keying from a phantom signal on the line input. Pin 3 and 6 on the REM connector.  Txkey: The transmitter is keyed by an external voltage on the TXKEY_P and TXKEY_N input pins. Signals located on Pin 7 and 8 on the | connector.  Txgnd: The transmitter is keyed by a signal on the TXKEY_G input pin Signals are located on Pin 4 and 8 (gnd) on the REM connector.  Inband: The transmitter is keyed using an inband tone (see also inband frequency and inband sensitivity) Keying Inband frequency 100 – 5000 Hz 1 Hz steps 5000 Set the frequency to be used for the inband tone that will be used to key the transmitter. By selected the tone frequency to use, the transmitter will automatically calculate the notch filter to use an insert this into the audio path. Applicable to the line interface input only. Keying Inband trig level -40 to -10 dBm -30 The level of the tone used to key the transmitter on the 600ohm input line. The value is given in dBm (absolute level related to 600 ohm). Values above the limit will key the transmitter. See also Keying source and Inband frequency. Keying TX Timeout OFF | 15-300 s 1s steps OFF Set the timeout for the key signal. If the PTT is pressed longer than this timeout, the transmitter will automatically stop transmitting. The transmitter will automatically reset the timer when the key signal is released. Keying RF delay 0 – 200 ms 0 (OFF) This setting is useful when the transmitter is used together with external equipment such as T/R relays, power amplifier or other equipment that includes RF switchover relays. Since the RF switching in the transmitter is done electronically, the RF is produced in less than 10ms after the PTT signal is detected. It could be harmful for the external relays if the RF is applied to them before switchover has occurred. In order to delay the RF carrier this parameter should be used under such circumstances. A reasonable setting should be in the order of 40-50 ms.
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-11 P/N: 84748 (G) Menu path: TX config ► Parameter Range Default Details Keying Loop key bias Ground, +12V, Floating Floating Connects the centre pin of the line input transformer to:  Floating: The centre pin is not connected. If loop keying is used, an external voltage must be applied to pin 3 (REM connector) in order to key the transmitter  Ground: The centre pin is grounded. If loop keying is used, an external voltage must be applied to pin 3 (REM connector) in order to key the transmitter.  +12V: A 12V DC is supplied on pin 3(REM connector). The transmitter can be keyed with a relay (or equivalent) that create a DC path on the line input pin, pin 3 and 6 (REM connector). Calibrate Ref oscillator -127 – +128 0 This setting is used to fine adjust (calibrate) the reference oscillator of the transmitter. The full range is approximately 10 ppm. This setting should be used with care, and only when a calibrated frequency measuring instrument is connected to the transmitter. Table 5.5-2, TX config group, transmitter 5.5.3 Interface config group Menu path: Interface config ► Parameter Range Default Details Access control SysOp, Technician, Operator, Restricted SysOp Set the user access level for local control. This setting limits the availability of some menus, depending on the access level. In order to set the access level from the user interface, a special hardware key must be inserted into the microphone/headset connector. Details of the key is available in chapter Error! Reference source not ound. Set language Depending on model English Set the language to use on the user interface. Availability of different languages depends on specifications when ordering the transmitter. Alarm config Alarm pin pull-up Disabled | Enabled Enabled The ALARM_OUT_P and ALARM_OUT_N output pins on AUX1 is used to signal that the radio has an alarm. This parameter applies a pull-up voltage to ALARM_OUT_P when there are no alarms present. When an alarm is detected the relay contact close. Alarm config Select polarity High to select| Low to select Low to select The SELECT_IN_P and SELECT_IN_N input pins on AUX1 can be used to select / deselect (Standby) the radio with an external signal (e.g. alarm from a main radio). This setting determines if the radio should be operational on a low select input signal or a high select input signal. RS485 Bitrate 1200 – 115200 1200 Set the bit rate to use on the RS485 port
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-12 P/N: 84748 (G) Menu path: Interface config ► Parameter Range Default Details RS485 Address 1 – 255 1 Set the address to use on the RS485. In a remote system using the RS485 communication port, all units that are interconnected need to have a unique address in order to avoid collisions and misinterpretation of data. RS485 Protocol Legacy | standard Legacy The protocols are described in the data manual. Legacy uses a protocol where the 9. bit is used for address recognition, this is the protocol used on the previous radio models (TA7450, RA7202) and is compatible with the RACS II PC software and the RCU remote control unit. Standard is an eight bit protocol that uses the multidrop capability of the RS485 bus. For more information on protocols, refer to the SW manual. RS232 Bitrate 1200 – 115200 115200 Set the bit rate to use on the RS232 interface ports LAN Address 4 octets IP address 192.168.2.1 IP interface address for the unit. Must be unique on the network it connects to. LAN Netmask 4 octets IP netmask 255.255.0.0 The netmask used on the IP interface. Should correspond to the local network that the radio is connected to. LAN Default gateway 4 octets IP address 0.0.0.0 If set different from the default, the radio unit will send IP traffic to the default gateway if the address is unreachable on the local network LAN SNMP port 1 – 65535 161 The input port used for SNMP commands The default port is the global port for SNMP commands LAN SNMP trap IP 4 octets IP address 0.0.0.0 The IP address where SNMP traps are sent. The address can be in the form of a unicast, multicast or broadcast address. LAN SNMP trap port 1 – 65535 162 The output port where SNMP traps are sent. The default value is the global port for SNMP traps LAN SNMP trap int 0 – 60 5 The interval on which an “alive” trap (operstate) are sent to the host, if the TrapIP and TrapPort are set. The value is given in seconds. 0=OFF RACK Number 0 – 100 0 Used to identify the location of the radio from a remote application. Defines the rack where the radio is located. RACK Row 0 – 20 0 Used to identify the location of the radio from a remote application. Defines the row number in the rack. The row number is counted from the top to the bottom of the rack. RACK Column 0 – 6 0 Used to identify the location of the radio from a remote application. Defines the column in the rack. The column number is counted from the left in steps of one receiver width or 14TE. There are 84 TE in a 19” rack. I.e. in a 19” frame width 6 receivers, the receivers will have the column set to 1,2,3,4,5 or 6. In a 19” frame width 3 transmitters, the transmitters will have the column set to 1,3 or 5. Table 5.5-3, Interface config group, transmitter
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-13 P/N: 84748 (G)
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-14 P/N: 84748 (G) 5.5.4 Bite system group Menu path: Interface config ► Parameter Range Default Details TX alarm Depends on the alarm status of the radio unit This option displays all active alarms in the unit. See section 6.1 for more info. Measurements Forward 30 – 47 dBm Displays the forward power in dBm detected at the output of the transmitter Measurements Reflected 0 – Forward power Displays the reflected power in dBm detected on the output of the transmitter Measurements VSWR 1 : ∞ Displays the calculated VSWR from the forward and reflected measurements Measurements Modulation Up to ± 5kHz Displays the measured modulation level on the output of the transmitter [kHz] Measurements Current Max 10 A when keyed Displays the total current consumption (28V) of the transmitter [A] Measurements PA Temp Max 85°C Displays the temperature measured on the PA module in the transmitter [°C] Measurements LO level Min. 0 dBm Displays the level measured at the output of the local oscillator in dBm Measurements Line level Input line level Displays the input line level in dBm Measurements 28 Volt 20.0 – 29.0 V Displays the regulated 28V supply from the power regulator board. The 28V is used on the PA board. Measurements 12 Volt 11.0 – 12.8 V Displays the regulated 12V supply from the power regulator board The 12V is used on the main board Measurements 6 Volt 5.0 – 7.0 V Displays the regulated 6V on the modulator board Measurements 5 Volt 4.5 – 5.5 V Displays the regulated 5V supply from the power regulator board. The 5V is used on several modules Measurements -5 Volt -6.2 - -4.0 V Displays the regulated -5V supply from the power regulator board. The -5V is used on the main board. Measurements 3.3 Volt 2.9 – 3.6 V Displays the regulated 3.3V supply from the power regulator board. The 3.3V is used on several modules Table 5.5-4, Bite system group, transmitter
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-15 P/N: 84748 (G) 5.6 User menu – receiver (Restricted access level) Main display window in restricted mode. Display Description When the receiver is switched on, it will show the channel, the frequency and the operation mode (FM). When the DSC dedicated receiver is switched on, it will show the DSC channel, the DSC frequency and the operation mode (DSC). Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the loudspeaker audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the headset audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press to return to the default screen Pressing from the main display will bring up the menu options that are available for the current user level. Press to disable / active the squelch. Menus for user level: Restricted For details regarding submenus, refer to chapter 5.4. Table 5.6-1, User menu selections receiver - restriced access level
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-16 P/N: 84748 (G) 5.7 User menu – receiver (Default access level) Main display window for user levels: Operator, Technician and SysOp. Display Description When the receiver is switched on, it will show the channel, the frequency and the operation mode (FM). When the DRC dedicated receiver is switched on, it will show the DSC channel, the DSC frequency and the operation mode (DRC). Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the loudspeaker audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the headset audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the channel select screen. Select channel number by rotating CW or CCW. Confirm new frequency with or . Confirm with or . If the channel is already programmed, the channel may be cleared using Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press to return to the default screen Pressing from the main display will bring up the menu options available for the current user level. Press to disable / activate the squelch. Menus for user level: Operator For details regarding submenus, refer to chapter 5.4.
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-17 P/N: 84748 (G) Menus for user level: Technician For details regarding submenus, refer to chapter 5.4. Menus for user level: SysOp For details regarding submenus, refer to chapter 5.4. Table 5.7-1, User menu selections receiver - Operator, Technician and SysOp access levels 5.8 Setting, information and configuration menus – receiver Under the menu selection from the user menu, various submenu groups are available depending on the user level. The submenus and details for them are shown in the tables below. Submenu Access level Description Radio control ► SysOp, Technician Access to operation mode, low power level, climax offset parameters, modulation and standby settings. RX config ► SysOp Access to configuration parameters for modulation, audio settings, Squelch settings and internal calibration settings. Interface config ► SysOp Access to configuration parameters for the ethernet interface, RS232 port, RS485 port, various pin settings on the hardware interface (remote connectors) and the user access level. Bite system ► SysOp, Technician Displays information about active alarms and gives the user access to internal measurements. System info ► All Displays information about the firmware and hardware release, system up-time and radio identification Table 5.8-1, Submenus available on the receiver
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-18 P/N: 84748 (G) 5.8.1 Radio control group SysOp and Technician access levels. Refer to section 5.9.1 for details. Figure 5.8-1, Radio control group, receiver 5.8.2 RX config group SysOp access level. Refer to section 5.9.2 for details. Figure 5.8-2, RX config group, receiver
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-19 P/N: 84748 (G) 5.8.3 Interface config group SysOp access level. Refer to section 5.9.3 for details. Access controlSet the user access level for local operationRackSet parameters to identify location of the radio: Rack number, row and columnRS232Set parameters for RS232 serial communication. Bitrate and protocolRS485Set parameters for RS485 serial communication. Bitrate, protocol and addressAlarm configSet pullup for the external alarm pin and polarity for select signalLanguageChange the language for local control. Availability varies with modelInterface configMENULANSet parameters for ethernet (IP) communication. IP address, ports to use, Gateway, etc. Figure 5.8-3, Interface config group, receiver
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-20 P/N: 84748 (G) 5.8.4 Bite system group SysOp and Technician access levels. Refer to section 5.9.4 for details. MeasurementsMeasure power levels, voltages, currents, lock detect, etc.AlarmsDisplay active alarms. Identifies modules and parameter with failure.Bite systemMENU Figure 5.8-4, Bite system group, receiver 5.8.5 System info group Available for all access levels System infoID, FW and HW release info. System uptime.MENU Figure 5.8-5, System info group, receiver
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-21 P/N: 84748 (G) 5.9 Parameter details – receiver 5.9.1 Radio control group Menu path: Radio control ► Parameter Range Default Details Squelch level -10 dBuV to +30 dBuV 0 dBuV Squelch level This squelch level is the level for the digital noise compensated squelch. Operation mode Main | Norm Norm A main radio will enter into standby if an alarm is detected by the internal BITE system. A norm radio will continue operation (if possible) even if a failure is detected. In a main / standby configuration, the main radio is set to Main and the standby radio is set to Norm. In this way the control can automatically be transferred to the standby radio by using the available alarm output and select input on the radios. Modulation FM FM Select the modulation type / waveform to use. Availability depends on radio specifications. Alarm On | Off Off This setting force the radio into alarm state (forced alarm) if set to On. Used for simulations, or to force a radio to signal an alarm in order to select a backup (standby) radio. Standby On | Off Off This setting force the radio into standby state (forced standby) if set to On. Used to manually set a radio to standby. Table 5.9-1, Radio control group, receiver
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-22 P/N: 84748 (G) 5.9.2 RX config group Menu path: RX config ► Parameter Range Default Details Audio Output source Speaker | Headphone | Lineout | VoIP Speaker, Headphone, Lineout The output source determines where the received audio is output.  Line: Output audio on the 600 ohm line interface  Speaker: Output audio on the integrated speaker.  Headphone: Output audio to a headphone connected to the front panel connector.  VoIP: Output audio on the IP interface (availability depends on radio specifications). Audio Line output level -40 – +10 dBm 1 dB steps -10 dBm The max. output level on the 600 ohm line output. Audio RF AGC Off, x-fast, fast, norm, slow, x-slow Norm Set the attack and release times for the RF AGC  Off is used only for maintenance purposes. Audio AF AGC On | Off Off Set the automatic AF gain control on or off. Setting AF AGC on will lead to constant audio output when received signals have varying modulation levels Audio Mute on transmit On | Off On Set this to On if the receiver should be muted while transmitting. Requires that the Tx busy signal on the RX connector on the transmitter is routed to the TX busy input on the receiver REM connector. Squelch Override level -10 dBuV to +30 dBuV 20 dBuV The override level where the analogue squelch will open even if it is a “noisy” signal. This squelch level overrides the noise compensated squelch. Setting this level to a lower level than the “SQ level” will disable the noise compensated squelch completely. Squelch Inband config Off, open, closed, both Off Defines the behavior of the inband squelch signal.  Off: No inband tone is generated  Open: An inband tone is generated when the squelch is open (receiving)  Closed: An inband tone is generated when the squelch is closed (muted)  Both: Different tones are generated depending on the status of the squelch. Squelch Inband freq open 100 – 5000 Hz 1 Hz steps 5000 Set the frequency to be used for the inband tone that will be used to signal that the squelch is open. Requires that open is included in the Inband config setting. The receiver will automatically notch the received signal and insert a tone at the given frequency. Applicable to the line interface output only. Squelch Inband freq closed 100 – 5000 Hz 1 Hz steps 5000 Set the frequency to be used for the inband tone that will be used to signal that the squelch is closed. Requires that closed is included in the Inband config setting. The receiver will automatically insert a tone at the given frequency. Applicable to the line interface output only.
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-23 P/N: 84748 (G) Menu path: RX config ► Parameter Range Default Details Squelch Inband level -30 to -10 -24 The level of the inband tone relative to the setting in the line level output level in dB, Applicable to the line interface output only. Squelch SqOut output Set the behavior of the SqOut output (AUX2, p.1 and p.2). Squelch RxBusy output Closed | Open | Closed on busy| Open on busy Closed on busy Set the behavior of the RxBusy output (REM, p.5). Calibrate Ref oscillator -127 – +128 0 This setting is used to fine adjust (calibrate) the reference oscillator of the receiver. The full range is approximately 10 ppm. This setting should be used with care, and only when a calibrated frequency measuring instrument is used to measure the frequency of the receiver. The exact frequency of the receiver can be determined either by connecting a spectrum analyzer to the antenna connector of the receiver and measure the leakage of the LO output (45 MHz above the operating frequency) – or by using a radio test set to measure the bandwidth of the receiver and adjust until centre is on the operating frequency. Calibrate RSSI reading -10 to +10 dB 0 dB In order to measure the RSSI level exactly, there is a provision to calibrate the reading. Normally the reading is within +/-2 dB without calibration, but it can be useful if to signals are being compared. Factory preset 0, 1 0 Writing a “1” to this parameter will reset the receiver and restore the settings that where set before shipping from the factory. Use with care – all settings that has been changed will be reset! Table 5.9-2, RX config group, receiver 5.9.3 Interface config group Menu path: Interface config ► Parameter Range Default Details Access control SysOp, Technician, Operator, Restricted SysOp Set the user access level for local control. This setting limits the availability of some menus, depending on the access level. In order to set the access level from the user interface, a special hardware key must be inserted into the microphone/headset connector. Details of the key is available in chapter Error! Reference source not ound.. Set language Depending on model English Set the language to use on the user interface. Availability of different languages depends on specifications when ordering the receiver. Alarm config Alarm pin pullup Disabled | Enabled Enabled The ALARM_OUT_P and ALARM_OUT_N output pins on AUX1 is used to signal that the radio has an alarm. This parameter applies a pullup voltage to ALARM_OUT_P when there are no alarms present. When an alarm is detected the relay contact close.
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-24 P/N: 84748 (G) Menu path: Interface config ► Parameter Range Default Details Alarm config Select polarity High to select| Low to select Low The SELECT_IN_P and SELECT_IN_N input pins on AUX1 can be used to select / deselect (Standby) the radio with an external signal (e.g. alarm from a main radio). This setting determines if the radio should be operational on a low select input signal or a high select input signal. RS485 Bitrate 1200 – 115200 1200 Set the bit rate to use on the RS485 port RS485 Address 1 – 255 1 Set the address to use on the RS485. In a remote system using the RS485 communication port, all units that are interconnected need to have a unique address in order to avoid collisions and misinterpretation of data. RS485 Protocol Legacy | standard Legacy The protocols are described in the data manual. Legacy uses a protocol where the 9. bit is used for address recognition, this is the protocol used on the previous radio models (TA7450, RA7202) and is compatible with the RACS II PC software and the RCU remote control unit. Standard is an eight bit protocol that uses the multidrop capability of the RS485 bus. For more information on protocols, refer to the SW manual. RS232 Bitrate 1200 – 115200 115200 Set the bit rate to use on the RS232 interface ports LAN Address 4 octets IP address 192.168.2.1 IP interface address for the unit. Must be unique on the network it connects to. LAN Netmask 4 octets IP netmask 255.255.0.0 The netmask used on the IP interface. Should correspond to the local network that the radio is connected to. LAN Default gateway 4 octets IP address 0.0.0.0 If set different from the default, the radio unit will send IP traffic to the default gateway if the address is unreachable on the local network LAN SNMP port 1 – 65535 161 The input port used for SNMP commands The default port is the global port for SNMP commands LAN SNMP trap IP 4 octets IP address 0.0.0.0 The IP address where SNMP traps are sent. The address can be in the form of a unicast, multicast or broadcast address. LAN SNMP trap port 1 – 65535 162 The output port where SNMP traps are sent. The default value is the global port for SNMP traps LAN SNMP trap interval 0 – 60 5 The interval on which an “alive” trap (operstate) are sent to the host, if the TrapIP and TrapPort are set. The value is given in seconds. 0=OFF LAN VDL output IP 4 octets IP address 0.0.0.0 The IP address that VDL packets received will be sent to. Must be set in order to detect VDLpackets. LAN VDL output port 1 – 65535 3006 The output port used for VDL traffic if the VDL input source is set to IP Rack Number 0 – 100 0 Used to identify the location of the radio from a remote application. Defines the rack where the radio is located. Rack Row 0 – 20 0 Used to identify the location of the radio from a remote application. Defines the row number in the rack. The row number is counted from the top to the bottom of the rack.
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-25 P/N: 84748 (G) Menu path: Interface config ► Parameter Range Default Details Rack Column 0 – 6 0 Used to identify the location of the radio from a remote application. Defines the column in the rack. The column number is counted from the left in steps of one receiver width or 14TE. There are 84 TE in a 19” rack. I.e. in a 19” frame width 6 receivers, the receivers will have the column set to 1,2,3,4,5 or 6. In a 19” frame width 3 transmitters, the transmitters will have the column set to 1,3 or 5. Table 5.9-3, Interface config group, receiver
Jotron AS| TR7750C: Operators Manual  Operating Instructions Page 5-26 P/N: 84748 (G) 5.9.4 Bite system group Menu path: Interface config ► Parameter Range Default Details RX alarm Depends on the alarm status of the radio unit This menu item displays all active alarms in the unit. See Receiver error conditions for more information Measurements RSSI -10 - +110 dBuV Displays the received signal level (RSSI) in dbuV Measurements Line level -40 - +10 dBm Displays the level measured on the output of the 600 ohm line interface Measurements AGC volt 0 – 5 V Displays the internal AGC voltage Measurements Codec/Eth LD Lock / Unlock Displays the status of the VCO used for the Codec and Ethernet chips. Measurements Temperature Max 85°C Displays the internal temperature measured on the main board [°C] Measurements DC current 0.1 – 0.3 A Displays the total current consumption [28V] of the receiver [A] Measurements IF current 20 – 60 mA Displays the current consumption in the IF (Intermediate Frequency) circuit [mA] Measurements LNA current 20 – 60 mA Displays the current consumption in the LNA (Low noise amplifier) [mA] Measurements LO level Min. 15 dBm Displays the level measured at the output of the local oscillator in dBm Measurements LO lock Lock / Unlock Displays the status of the local oscillator in the receiver. Measurements 12 Volt 11.0 – 12.8V Displays the regulated 12V supply from the power supply board The 12V is used on the main board Measurements 6 Volt 5.0 – 7.0V Displays the regulated 6V on the demodulator board Measurements 5 Volt 4.5 – 5.5V Displays the regulated 5V supply from the power supply board. The 5V is used on several modules Measurements 3.3 Volt 2.9 – 3.6V Displays the regulated 3.3V supply from the power supply board. The 3.3V is used on several modules Measurements AC Present/Not Present / Not present. Signals that AC is present or not present at the input of the unit. Measurements VDL2-CO 0 – 100 % Displays the channel occupancy (CO) when in VDL 2 mode. The value is calculated every second, or by the interval set in VDL2-CO Trap interval. Table 5.9-4, Bite system group, receiver
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-1 P/N: 84748 (pre_F) 6 ERROR CONDITIONS AND CORRECTIVE ACTIONS When the internal BITE (Built In Test Equipment) in the transmitter or the receiver units detects a failure, the alarm indicator on the front panel of the unit will be lit. In addition the radio unit will signal with an automatically generated SNMP trap message on the ethernet interface. Details about the fault that caused the alarm are accessible for user access levels: SysOp and Technician. The error messages are available in two levels, first the module that has the failure will be identified, next the user has the option to view in details what particular message that caused the alarm condition. In the following (LRU) refers to the Lowest Replaceable Unit – and is normally the first line maintenance where the complete unit is replaced. (LRM) refers to the Lowest Replaceable Module and is the module within the unit that can be replaced. The LRM level normally requires a well equipped workshop with appropriate tools for testing and calibration. 6.1 Transmitter error conditions Display Description Press from the main display to bring up the available menus. Use to navigate to the Bite system menu and select by pressing Select TX alarm The displays shows module(s) where the BITE system has detected failures. To view more details about the failure, select module. Table 6.1-1, Alarm indication, transmitter navigation
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-2 P/N: 84748 (pre_F) 28V12V5V3.3V-5VOne of the voltage readings is out of rangeHigh TemperatureTemperature reading is above +85°CHigh CurrentCurrent consumption is above 10AHigh SWRCaused by a SWR reading higher than 1:3PA ModuleTX alarmAction: Check antenna / Antenna connectors / Antenna CableAction: Replace -TX unit (LRU) PA module (LRM)Probable cause: Defective output transistorAction: Replace - TX unit (LRU) PA module (LRM)Probable cause: Defective fan(s)Action: Replace -TX unit (LRU) PA module (LRM)Probable cause: Defective component on power regulator board Figure 6.1-1, Transmitter PA module, errors and corrective actions
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-3 P/N: 84748 (pre_F) 6VFailure on 6V regualtor on mod moduleLO lock detectSynthesizer is out of lockLO level The LO level is below 0dBm Mod moduleTX alarmAction: Replace -TX unit (LRU) Modulator module (LRM)Probable cause: Defective synthesizer circuits / VCO / TCXOAction: Replace -TX unit (LRU) Modulator module (LRM)Probable cause: Defective synthesizer circuits / VCO / TCXOAction: Replace - TX unit (LRU) Modulator module (LRM)Probable cause: Defective 6V regulator modulator board Figure 6.1-2, Transmitter Modulator module, errors and corrective actions
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-4 P/N: 84748 (pre_F) FrontFailure on the communication link to the front panelDSPFailure on the DSP chip on the main boardCodecSPIRemExpBiteADCFailure on one or more ICs on the main boardEthernetFailure on the ethernet controller on the main boardMain ModuleTX alarmAction: Replace-TX unit (LRU) Main module (LRM)Probable cause: Failure on the ethernet chipAction: Replace -TX unit (LRU) Main module (LRM)Probable cause: Failure on the specified chipAction: Replace - TX unit (LRU) Main module (LRM)Probable cause: Failure on the DSP chip.Action: Replace -TX unit (LRU) Check connections to the front panel, replace front panel (LRM)Probable cause: Failure on the front panel or connectors betw. front panel and main board Figure 6.1-3, Transmitter Main module, errors and corrective actions
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-5 P/N: 84748 (pre_F) 6.2 Receiver error conditions Display Description Press from the main display to bring up the available menus. Use to navigate to the Bite system menu and select by pressing Select Alarms and press The displays shows module(s) where the BITE system has detected failures. To view more details about the failure, select module. Table 6.2-1, Alarm indication, receiver navigation
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-6 P/N: 84748 (pre_F) 12V5V3.3VOne of the voltage readings is out of rangeHigh CurrentCurrent consumption is above 500 mAHigh TemperatureTemperature reading is above +85°CPower moduleRX alarmAction: Replace -RX unit (LRU)Power module (LRM).Probable cause:Failure on one or more components on the power module.Action: Replace -RX unit (LRU)Power module, Main module or RF module (LRM).Cause: Excessive current consumption in one or more modules.Action: Replace -RX unit (LRU) Power module, Main module or RF module (LRM)Cause: Excessive current consumption or defective voltage regualtor. Figure 6.2-1, Receiver Power module, errors and corrective actions
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-7 P/N: 84748 (pre_F) LNA currentUnnormal current consumption in the LNA (Low Noise Amplifier)LO lock detectSynthesizer is out of lockLO level The LO level is below 0dBm RF moduleRX alarmAction: Replace -RX unit (LRU) RF module (LRM)Probable cause: Defective synthesizer circuits / VCO / TCXOAction: Replace -RX unit (LRU) RF module (LRM)Probable cause: Defective synthesizer circuits / VCO / TCXOAction: Replace - RX unit (LRU) RF module (LRM)Probable cause: LNA transistor broken because of high RF input or transient caused by lightning.IF currentUnnormal current consumption in the IF circuitry.Action: Replace - RX unit (LRU) RF module (LRM)Probable cause: Defective IF chip on the RF board Figure 6.2-2, Receiver RF module, errors and corrective actions
Jotron AS| TR7750C: Operators Manual  ERROR CONDITIONS AND CORRECTIVE ACTIONS Page 6-8 P/N: 84748 (pre_F) FrontFailure on the communication link to the front panelDSPFailure on the DSP chip on the main boardCodecSPIRemExpBiteADCFailure on one or more ICs on the main boardEthernetFailure on the ethernet controller on the main boardMain ModuleRX alarmAction: Replace-RX unit (LRU) Main module (LRM)Probable cause: Failure on the ethernet chipAction: Replace -RX unit (LRU) Main module (LRM)Probable cause: Failure on the specified chipAction: Replace - RX unit (LRU) Main module (LRM)Probable cause: Failure on the DSP chip.Action: Replace -RX unit (LRU) Check connections to the front panel, replace front panel (LRM)Probable cause: Failure on the front panel or connectors betw. front panel and main board Figure 6.2-3, Receiver Main module, errors and corrective actions
Jotron AS| TR7750C: Operators Manual  LIST OF TABLES AND FIGURES Page 7-1 P/N: 84748 (pre_F) 7 LIST OF TABLES AND FIGURES TABLE 1.1-1, RADIO MODELS ...................................................................................................................................... 1-1 TABLE 3.1-1, MIC/HEADSET CONNECTOR, TRANSMITTER, PIN OUT..................................................................................... 3-2 TABLE 3.2-1, LAN INTERFACE CONNECTOR, PIN OUT ....................................................................................................... 3-5 TABLE 3.2-2, AUX1 CONNECTOR, TRANSMITTER, PIN OUT ............................................................................................... 3-5 TABLE 3.2-3, AUX2 CONNECTOR, TRANSMITTER, PIN OUT ............................................................................................... 3-6 TABLE 3.2-4, REM CONNECTOR, TRANSMITTER, PIN OUT ................................................................................................. 3-6 TABLE 3.2-5, RX CONNECTOR, TRANSMITTER, PIN OUT..................................................................................................... 3-7 TABLE 3.3-1, HEADSET CONNECTOR, RECEIVER, PIN OUT .................................................................................................. 3-9 TABLE 3.4-1, LAN INTERFACE CONNECTOR, PIN OUT ..................................................................................................... 3-11 TABLE 3.4-2, AUX1 CONNECTOR, RECEIVER, PIN OUT.................................................................................................... 3-11 TABLE 3.4-3, AUX2 CONNECTOR, RECEIVER, PIN OUT.................................................................................................... 3-12 TABLE 3.4-4, REM CONNECTOR, RECEIVER, PIN OUT ..................................................................................................... 3-12 TABLE 4.1-1, INSTALLATION PROCEDURES ..................................................................................................................... 4-1 TABLE 4.6-1, TRANSCEIVER, TRANSMITTER – RECEIVER INTERCONNECTIONS ......................................................................... 4-3 TABLE 4.6-2, SETTINGS ASSOCIATED WITH THE TRANSMITTER - RECEIVER INTERCONNECTION ................................................... 4-5 TABLE 4.6-3, SETTINGS ASSOCIATED WITH MONITOR OUTPUT (TA – AUX1) .................................................................. 4-6 TABLE 4.6-4, SETTINGS ASSOCIATED WITH LINE_INPUT (TX-REM) ................................................................................. 4-8 TABLE 4.6-5, SETTINGS ASSOCIATED WITH LINE_OUTPUT (RX-REM) ............................................................................. 4-8 TABLE 4.6-6, KEY SOURCE SETTINGS .......................................................................................................................... 4-10 TABLE 4.6-7, SQUELCH OUTPUT CONFIGURATION ......................................................................................................... 4-12 TABLE 4.6-8, ALARM AND SELECT SETTINGS, TRANSMITTER AND RECEIVER ......................................................................... 4-13 TABLE 4.6-9, MISC. SETTINGS, TRANSMITTER. .............................................................................................................. 4-15 TABLE 4.7-1, TRANSCEIVER, LOCAL CONFIGURATION ..................................................................................................... 4-17 TABLE 4.7-2, TRANSCEIVER, REMOTE (2W) INTERFACE ................................................................................................. 4-19 TABLE 4.7-3, TRANSCEIVER, REMOTE (4W) INTERFACE ................................................................................................. 4-20 TABLE 4.7-4, MAIN/BACKUP CONFIGURATION, TRANSMITTERS ........................................................................................ 4-21 TABLE 4.7-5, MAIN/BACKUP CONFIGURATION, RECEIVERS .............................................................................................. 4-22 TABLE 5.2-1, USER MENU SELECTIONS TRANSMITTER - RESTRICED ACCESS LEVEL ................................................................... 5-2 TABLE 5.3-1, USER MENU SELECTIONS TRANSMITTER- OPERATOR, TECHNICIAN AND SYSOP ACCESS LEVELS ............................... 5-3 TABLE 5.4-1, SUBMENUS AVAILABLE ON THE TRANSMITTER .............................................................................................. 5-4 TABLE 5.5-1, RADIO CONTROL GROUP, TRANSMITTER ...................................................................................................... 5-8 TABLE 5.5-2, TX CONFIG GROUP, TRANSMITTER ........................................................................................................... 5-11 TABLE 5.5-3, INTERFACE CONFIG GROUP, TRANSMITTER ................................................................................................. 5-12 TABLE 5.5-4, BITE SYSTEM GROUP, TRANSMITTER ......................................................................................................... 5-14 TABLE 5.6-1, USER MENU SELECTIONS RECEIVER - RESTRICED ACCESS LEVEL ....................................................................... 5-15 TABLE 5.7-1, USER MENU SELECTIONS RECEIVER - OPERATOR, TECHNICIAN AND SYSOP ACCESS LEVELS ................................... 5-17 TABLE 5.8-1, SUBMENUS AVAILABLE ON THE RECEIVER .................................................................................................. 5-17 TABLE 5.9-1, RADIO CONTROL GROUP, RECEIVER .......................................................................................................... 5-21 TABLE 5.9-2, RX CONFIG GROUP, RECEIVER ................................................................................................................. 5-23 TABLE 5.9-3, INTERFACE CONFIG GROUP, RECEIVER ....................................................................................................... 5-25 TABLE 5.9-4, BITE SYSTEM GROUP, RECEIVER ............................................................................................................... 5-26 TABLE 6.1-1, ALARM INDICATION, TRANSMITTER NAVIGATION .......................................................................................... 6-1 TABLE 6.2-1, ALARM INDICATION, RECEIVER NAVIGATION ................................................................................................ 6-5 FIGURE 3.1-1, FRONT VIEW, TRANSMITTER UNIT, TA-7650C/25C/10C ............................................................................ 3-1 FIGURE 3.2-1, REAR VIEW, TRANSMITTER UNIT, TA-7650C/25C/10C. ............................................................................. 3-4 FIGURE 3.2-2, TRANSMITTER DC INPUT CONNECTOR, REAR VIEW ...................................................................................... 3-4 FIGURE 3.3-1, FRONT VIEW, RECEIVER UNIT, RA-7203C ................................................................................................ 3-8 FIGURE 3.4-1, REAR VIEW, RECEIVER UNIT, RA-7203C. ................................................................................................ 3-10
Jotron AS| TR7750C: Operators Manual  LIST OF TABLES AND FIGURES Page 7-2 P/N: 84748 (pre_F) FIGURE 3.4-2, RECEIVER DC INPUT CONNECTOR, REAR VIEW .......................................................................................... 3-10 FIGURE 3.5-1, PSU-7002, FRONT VIEW ..................................................................................................................... 3-13 FIGURE 3.6-1, POWER SUPPLY UNIT - REAR VIEW .......................................................................................................... 3-14 FIGURE 3.6-2, DC INPUT CONNECTOR, PSU ................................................................................................................ 3-14 FIGURE 3.6-3, DC OUTPUT, PSU............................................................................................................................... 3-14 FIGURE 3.6-4, AC INPUT CONNECTOR, PSU ................................................................................................................ 3-15 FIGURE 4.3-1, EXAMPLES OF VARIOUS CONFIGURATIONS .................................................................................................. 4-2 FIGURE 4.6-1, AUDIO INTERFACES ON THE TRANSMITTER AND RECEIVER UNITS ..................................................................... 4-6 FIGURE 4.6-2, KEY SIGNALS ON THE TRANSMITTER UNIT ................................................................................................... 4-9 FIGURE 4.6-3, SQUELCH AND AGC SIGNALS RECEIVER UNIT ............................................................................................ 4-11 FIGURE 4.6-4, ALARM AND SELECT SIGNALS, TRANSMITTER ............................................................................................. 4-12 FIGURE 4.6-5, MISC SIGNALS, TRANSMITTER ................................................................................................................ 4-14 FIGURE 4.7-1, TRANSCEIVER, LOCAL CONFIGURATION, INTERFACING ................................................................................ 4-15 FIGURE 4.7-2, TRANSCEIVER, REMOTE CONFIGURATION WITH 2 WIRE AUDIO INTERFACE ...................................................... 4-18 FIGURE 4.7-3, TRANSCEIVER, REMOTE CONFIGURATION WITH 4 WIRE AUDIO INTERFACE ...................................................... 4-19 FIGURE 4.7-4, MAIN / BACKUP TRANSMITTER.............................................................................................................. 4-21 FIGURE 4.7-5, MAIN / BACKUP RECEIVER .................................................................................................................... 4-22 FIGURE 5.4-1, RADIO CONTROL GROUP, TRANSMITTER .................................................................................................... 5-5 FIGURE 5.4-2, TX CONFIG GROUP, TRANSMITTER ............................................................................................................ 5-5 FIGURE 5.4-3, INTERFACE CONFIG GROUP, TRANSMITTER ................................................................................................. 5-6 FIGURE 5.4-4, BITE SYSTEM GROUP, TRANSMITTER ......................................................................................................... 5-7 FIGURE 5.4-5, SYSTEM INFO GROUP, TRANSMITTER ......................................................................................................... 5-7 FIGURE 5.8-1, RADIO CONTROL GROUP, RECEIVER ........................................................................................................ 5-18 FIGURE 5.8-2, RX CONFIG GROUP, RECEIVER ............................................................................................................... 5-18 FIGURE 5.8-3, INTERFACE CONFIG GROUP, RECEIVER ..................................................................................................... 5-19 FIGURE 5.8-4, BITE SYSTEM GROUP, RECEIVER ............................................................................................................. 5-20 FIGURE 5.8-5, SYSTEM INFO GROUP, RECEIVER ............................................................................................................. 5-20 FIGURE 6.1-1, TRANSMITTER PA MODULE, ERRORS AND CORRECTIVE ACTIONS ..................................................................... 6-2 FIGURE 6.1-2, TRANSMITTER MODULATOR MODULE, ERRORS AND CORRECTIVE ACTIONS ....................................................... 6-3 FIGURE 6.1-3, TRANSMITTER MAIN MODULE, ERRORS AND CORRECTIVE ACTIONS ................................................................. 6-4 FIGURE 6.2-1, RECEIVER POWER MODULE, ERRORS AND CORRECTIVE ACTIONS ..................................................................... 6-6 FIGURE 6.2-2, RECEIVER RF MODULE, ERRORS AND CORRECTIVE ACTIONS ........................................................................... 6-7 FIGURE 6.2-3, RECEIVER MAIN MODULE, ERRORS AND CORRECTIVE ACTIONS ....................................................................... 6-8
Jotron AS| TR7750C: Operators Manual  LIST OF MARITIME CHANNELS AND FREQUENCIES Page 7-1 P/N: 84748 (pre_F) Appendix A. LIST OF MARITIME CHANNELS AND FREQUENCIES Channel Designators BASE RX MHz BASE TX MHz 0 156.000 156.000 60 156.025 160.625 1 156.050 160.650 61 156.075 160.675 2 156.100 160.700 62 156.125 160.725 3 156.150 160.750 63 156.175 160.775 4 156.200 160.800 64 156.225 160.825 5 156.250 160.850 65 156.275 160.875 6 156.300 156.300 66 156.325 160.925 7 156.350 160.950 67 156.375 156.375 8 156.400 156.400 68 156.425 156.425 9 156.450 156.450 69 156.475 156.475 10 156.500 156.500 DSC 70 156.525 156.525 11 156.550 156.550 71 156.575 156.575 12 156.600 156.600 72 156.625 156.625 13 156.650 156.650 73 156.675 156.675 14 156.700 156.700 Channel Designators BASE RX MHz BASE TX MHz 74 156.725 156.725 15 156.750 156.750 75 - 156.775 16 156.800 156.800 76 - 156.825 17 156.850 156.850 77 156.875 156.875 18 156.900 161.500 78 156.925 161.525 19 156.950 161.550 79 156.975 161.575 20 157.000 161.600 80 157.025 161.625 21 157.050 161.650 81 157.075 161.675 22 157.100 161.700 82 157.125 161.725 23 157.150 161.750 83 157.175 161.775 24 157.200 161.800 84 157.225 161.825 25 157.250 161.850 85 157.275 161.875 26 157.300 161.900 86 157.325 161.925 27 157.350 161.950 87 157.375 157.375 28 157.400 162.000 88 157.425 157.425

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