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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 

 

 

Summary of Contents for RA-7203C

Page 1: ......

Page 2: ...opean 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 R...

Page 3: ...e 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...

Page 4: ...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 sta...

Page 5: ...e 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 a...

Page 6: ...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...

Page 7: ......

Page 8: ...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 FRO...

Page 9: ...S 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 S...

Page 10: ...oughout 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...

Page 11: ...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...

Page 12: ...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 Leve...

Page 13: ...l 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 Cro...

Page 14: ...us 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 Scrol...

Page 15: ...end 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...

Page 16: ...ters 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 c...

Page 17: ...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 mati...

Page 18: ..._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 rem...

Page 19: ...tter 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...

Page 20: ...al 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...

Page 21: ...he 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 m...

Page 22: ...erface 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 re...

Page 23: ...eiver 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 Con...

Page 24: ...ptional 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...

Page 25: ...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 connecte...

Page 26: ...C 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 P...

Page 27: ...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 Ou...

Page 28: ...rs 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...

Page 29: ...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 bet...

Page 30: ...east 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 sa...

Page 31: ...o 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 comb...

Page 32: ...Jotron AS TR7750C Operators Manual Installation Page 4 4 P N 84748 G...

Page 33: ...a 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...

Page 34: ...u 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...

Page 35: ...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 t...

Page 36: ...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 o...

Page 37: ...lable 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 an...

Page 38: ...cted 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 th...

Page 39: ...QUELCH 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 A...

Page 40: ...ransmitter 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 t...

Page 41: ...ain 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 Defa...

Page 42: ...ent 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 s...

Page 43: ...t 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 exter...

Page 44: ...Jotron AS TR7750C Operators Manual Installation Page 4 16 P N 84748 G...

Page 45: ...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 Alternati...

Page 46: ...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 con...

Page 47: ...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 includ...

Page 48: ...C 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 connecti...

Page 49: ...ed 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...

Page 50: ...tion 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 con...

Page 51: ...icted 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...

Page 52: ...splay 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...

Page 53: ...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 p...

Page 54: ...lation 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 configu...

Page 55: ...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 t...

Page 56: ...ts to use Gateway etc RS232 Set parameters for RS232 serial communication Bitrate and protocol RS485 Set parameters for RS485 serial communication Bitrate protocol and address Alarm config Set pullup...

Page 57: ...4 for details Measurements Measure power levels voltages currents lock detect etc Alarms Display active alarms Identifies modules and parameter with failure Bite system MENU Figure 5 4 4 Bite system...

Page 58: ...evel 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 F...

Page 59: ...ermination 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 connect...

Page 60: ...ter 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 u...

Page 61: ...ameter 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 a...

Page 62: ...ault 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 t...

Page 63: ...Jotron AS TR7750C Operators Manual Operating Instructions Page 5 13 P N 84748 G...

Page 64: ...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 Measu...

Page 65: ...avigate 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 aud...

Page 66: ...tting 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...

Page 67: ...ccess 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 paramet...

Page 68: ...8 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 t...

Page 69: ...mber row and column RS232 Set parameters for RS232 serial communication Bitrate and protocol RS485 Set parameters for RS485 serial communication Bitrate protocol and address Alarm config Set pullup fo...

Page 70: ...or details Measurements Measure power levels voltages currents lock detect etc Alarms Display active alarms Identifies modules and parameter with failure Bite system MENU Figure 5 8 4 Bite system grou...

Page 71: ...d 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 availabl...

Page 72: ...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 n...

Page 73: ...er 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...

Page 74: ...nterface 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...

Page 75: ...io 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 rec...

Page 76: ...tion 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 leve...

Page 77: ...entified 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 li...

Page 78: ...ove 10A High SWR Caused by a SWR reading higher than 1 3 PA Module TX alarm Action Check antenna Antenna connectors Antenna Cable Action Replace TX unit LRU PA module LRM Probable cause Defective outp...

Page 79: ...elow 0dBm Mod module TX alarm Action Replace TX unit LRU Modulator module LRM Probable cause Defective synthesizer circuits VCO TCXO Action Replace TX unit LRU Modulator module LRM Probable cause Defe...

Page 80: ...n board Main Module TX alarm Action Replace TX unit LRU Main module LRM Probable cause Failure on the ethernet chip Action Replace TX unit LRU Main module LRM Probable cause Failure on the specified c...

Page 81: ...ay 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...

Page 82: ...r module RX alarm Action 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...

Page 83: ...e LRM Probable cause Defective synthesizer circuits VCO TCXO Action Replace RX unit LRU RF module LRM Probable cause Defective synthesizer circuits VCO TCXO Action Replace RX unit LRU RF module LRM Pr...

Page 84: ...ain board Main Module RX alarm Action Replace RX unit LRU Main module LRM Probable cause Failure on the ethernet chip Action Replace RX unit LRU Main module LRM Probable cause Failure on the specified...

Page 85: ...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 TRANSMITTE...

Page 86: ...CEIVER 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...

Page 87: ...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 Designato...

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