Midian Electronics TRC-2, Manual

Page 1: ...Tone Remote Controller Manual Revision 2012 07 27 Covers TRC Firmware Revisions 1 22 Higher Covers Keyboard Firmware Revisions 3 2 Higher Covers Encoder Decoder Firmware Revisions 1 7 Higher Covers PCB Revisions G Higher ...

Page 2: ... CONTENTS Specifications 3 General Information 4 Hardware Installation 5 Hardware Alignment 7 Jumper Settings 8 Controls Indicators 9 Operation 10 Theory of Operation 11 Technical Notes 13 Contact Information 13 ...

Page 3: ... 1 KHz below compression TX Outputs TX Output Adjustable to 15 dbm on 2175 Hz Output Impedance TX 600 Ohms Mic Compression Threshold Adjustable typically 50 mv Compression Range Not more than 3 db change for 30 db increase above threshold Hum Noise 50 db below normal operating level Notch Filter Depth 45 db relative to 1 KHz below compression Mechanical Dimensions 2 875 H x 6 5 W x 8 75 L Operatin...

Page 4: ...rophone and speaker A gooseneck microphone TRC Option A or handset and cradle TRC Option C are also available The standard configuration is for a 2 wire and single line system A 4 wire option TRC Option F or a Line 2 option TRC Option E is available for these types of systems Midian s TRC can be used with Midian s TTC series tone remote adaptor or another manufacturer s tone remote adaptor that us...

Page 5: ...tor PL1 is a 10 pin RJ 45 style connector in the center of the back panel A standard 4 pin RJ 11 cable will plug into the RJ 45 and connect to the center 4 pins that are needed for 2 wire or 4 wire interfaces The remaining 6 pins are for use with a telemetry radio or microwave E M options and for future interoperability options 2 Wire Line 1 Operation For a single line 2 wire installation simply c...

Page 6: ...he and keys simultaneously Diagram 3 3 Supervisor Wiring Telemetry Radio Rather than connecting the TRC to a dedicated line to communicate with the tone remote adaptor telemetry radios can be used for communication If connecting to a telemetry radio connect PL1 as follows to the radio PL1 3 PTT Output Connect to the PTT of the radio Jumpers JP210 1 2 and JP208 1 2 should be installed PL1 6 TX Audi...

Page 7: ...r 2 Set RP201 to 90 3 Push and hold the SEND key on the TRC to generate the Low Level Guard Tone 4 Adjust RP202 so that the line level meter shows the Low Level Guard Tone at 20 dBm If paralleling multiple remotes this alignment should be done with all remotes attached RX Notch Filter Alignment 1 Generate the 2175 Hz Low Level Guard Tone to the TRC 2 Turn RP303 fully clockwise 3 Monitor TP303 with...

Page 8: ...1 2 Out 2 3 Out Install JP210 1 2 with JP208 1 2 to PTT a telemetry radio JP301 1 2 In 2 3 Out Future Use JP302 Out Handset Audio Feedback Install only with the TRC Option C if dial tones and voice in the ear piece are desired JP303 Out TX Audio Loading If less TX audio is needed install this jumper JP304 In 2 Wire RX Audio Termination If more RX audio is needed remove this jumper This should only...

Page 9: ...ep to indicate F2 INTER Pressing the INTER key will allow intercom communications between several connected tone remotes without transmitting over the radio When the INTER key is pressed and held the audio is routed on the line without the Guard Tone activating the transmitter Other tone remotes on the same line will hear the audio automatically No cross mute is available in intercom mode since th...

Page 10: ... the tone remote adaptor receives a second Monitor command from the TRC Receiving When a field radio keys up the tone remote adaptor passes the voice down the line to the TRC The voice will then be passed through to the internal speaker of the TRC Optional Line 2 Supervisor Capability FREQ INTER If the TRC is ordered with TRC Option E then the TRC is equipped with the Line 2 Supervisor Capability ...

Page 11: ...ansistor Q302 Activating transistor Q302 mutes the speaker amplifier Audio from U301C is fed into ear level RP304 which drives the earpiece driver Q303B to drive the handset earpiece There is also an ear mute transistor Q304 that allows the microprocessor to mute the earphone There is also a jumper JP302 that feeds handset mic audio back into the earpiece for sidetone This jumper should not be use...

Page 12: ...he optional Line 2 Supervisor to the line relay on the analog page Microprocessor U401 generates the Guard Tone function tones and signaling tones on its B0 B7 port These tones are fed into U405 the DAC output over to the analog page U401 also controls PTT disable PTT mic enable and ear mute Both of these microprocessors get their voltage from 5 volt regulator U601 Microprocessor U403 decodes the ...

Page 13: ...echnical notes are available at this time MIDIAN CONTACT INFORMATION MIDIAN ELECTRONICS INC 2302 East 22nd Street Tucson Arizona 85713 USA Toll Free 1 800 MIDIANS Main 520 884 7981 E mail sales midians com Web www midians com ...

Page 14: ... This page intentionally left blank ...

Page 15: ...05 1206 0805 MULTITURN PRODUCTION DATE OF CMX469AD3 C516 NOT INSTALLED NOTE3 C525 1uF USED ONLY WITH SPECIFIC NOTE2 ZAP FORMAT C515 AND C516 AS SHOWN GSTAR FORMAT C515 0047u AND R452 NOT INSTALLED NOTE4 R445 R447 AND R452 0R WHEN INSTALLED TRC 100 200 R445 INSTALLED R447 AND R452 NOT INSTALLED TRC 500 TRC 600 R452 INSTALLED R445 AND R447 NOT INSTALLED COMPANDOR NOTE5 ONLY INSTALLED WHEN LCD OPTION...

Page 16: ... 15V 5V 5V VAN_D VAN_D 5V 5V 5V 5V 5V 5V 5V 5V 5V HANDSET_PTT DECODER_AUDIO EXT_HOOK MONITOR PTT_DISABLE PTT_MIC_ENABLE DAC_OUT KEYPAD_BEEP OFFHOOK_SPKR_MUTE RESET RESET EAR_MUTE CLK_B MIC_AUD_SELECT PTT_LINE_AMP_ENABLE LINE_2 SUPERVISOR CLK_A CLK_A CLK_B FFSK FFSK RESET PTT_LINE_AMP_ENABLE LLG_TONE FNC_TONE INTEROP_XOVER RXD2 TXD2 HLG_DET OPTION 100 OPTION 200 DTMF 5 TONE OPTION 600 FLEETSYNC FOR...

Page 17: ......

Page 18: ......

Page 19: ...05 1206 0805 MULTITURN PRODUCTION DATE OF CMX469AD3 C516 NOT INSTALLED NOTE3 C525 1uF USED ONLY WITH SPECIFIC NOTE2 ZAP FORMAT C515 AND C516 AS SHOWN GSTAR FORMAT C515 0047u AND R452 NOT INSTALLED NOTE4 R445 R447 AND R452 0R WHEN INSTALLED TRC 100 200 R445 INSTALLED R447 AND R452 NOT INSTALLED TRC 500 TRC 600 R452 INSTALLED R445 AND R447 NOT INSTALLED COMPANDOR NOTE5 ONLY INSTALLED WHEN LCD OPTION...

Page 20: ...V 5V 5V VAN_D VAN_D 5V 5V 5V 5V 5V 5V 5V 5V 5V HANDSET_PTT DECODER_AUDIO EXT_HOOK MONITOR PTT_DISABLE PTT_MIC_ENABLE DAC_OUT KEYPAD_BEEP OFFHOOK_SPKR_MUTE RESET RESET EAR_MUTE CLK_B MIC_AUD_SELECT PTT_LINE_AMP_ENABLE LINE_2 SUPERVISOR CLK_A CLK_A CLK_B FFSK FFSK RESET PTT_LINE_AMP_ENABLE LLG_TONE FNC_TONE INTEROP_XOVER RXD2 TXD2 HLG_DET OPTION 100 OPTION 200 DTMF 5 TONE OPTION 600 FLEETSYNC FORMAT...

Page 21: ......

Page 22: ......