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19537P-26 (11-14)

 

 

11 of 15 

3.  System Interface Cable 

 
 
The C98-20MR* Cables are used to interface the M-RIM to a radio port on David Clark Company Inc. 
Series 3800, 9500, 9800, or SOLO systems.  One end of the cable connects to the M-RIM and the other 
end connects to the intercom system. 
 

 

Parts/Tools Required 

 

q

 

System Interface Requirements:  

   Series 9800 and SOLO Interface: 

o

  C98-20MR1 cable (P/N: 40892G-13, qty. 1 each) 

   Series 3800 Interface: 

o

  C98-20MR2 cable (P/N: 40892G-14, qty. 1 each) 

   Series 9500 Interface: 

o

  C98-20RD cable (P/N: 40892G-01, qty. 1 each) 

q

 

Wire ties 

 

 

Procedure 

 

 

q

 

Determine the path of the cable between the host system and the M-RIM.  The host system 
should already be installed and tested.  The cable should be routed using under-deck conduits 
and be as far as possible from radio antenna coax cables and anywhere water may collect. 

 

q

 

Route the cable and connect to the M-RIM.  See

 Figures 1&4

 for connector location. 

 

q

 

To connect the cable to the M-RIM, align keyways and push.  Then push and turn collar 
clockwise until it stops.  Pull back gently on the cable to ensure connector is properly locked. 

 

q

 

Connect the other end of the interface cable to the host system.  Refer to the host system 
installation/operation manual for further instructions. 

 

 

Summary of Contents for 41021G-01

Page 1: ...19537P 26 11 14 ã2014 David Clark Company Incorporated INSTALLATION AND OPERATION MANUAL Multiple Radio Interface Module 41021G 01 ...

Page 2: ......

Page 3: ...ure 10 3 System Interface Cable 11 Parts Tools Required 11 Procedure 11 4 Power Cable 12 Parts Tools Required 12 Procedure 12 5 Operation 14 6 Testing Troubleshooting 15 Parts Tools Required 15 Test Procedure 15 Troubleshooting 15 Appendix A A 1 P N 40688G 47 Waterproof Fuse Kit A 1 Installation Instructions A 1 Parts Tools Required A 1 Procedure A 1 Appendix B B 1 M RIM Adjustments B 1 Transmit A...

Page 4: ......

Page 5: ... THAT APPEARS DAMAGED Upon unpacking your David Clark product inspect the contents for shipping damage If damage is apparent immediately file a claim with the carrier and notify your David Clark product supplier ELECTRICAL HAZARD Disconnect electrical power when making any internal adjustments or repairs All repairs should be performed by a representative or authorized agent of the David Clark Com...

Page 6: ...G 01 q Headset Station Mounting Kit P N 40688G 62 Other versions available Contact factory with radio make and model Customer Supplied q Screwdriver selection q Pen Pencil q Drill q 3 16 drill bit q 11 32 nut driver or wrench q Wire strippers q Wire cutters q Wire terminals q Wire tie assortment q Tape Measure q Soldering Iron Solder q Radio adapters for interfacing to radios supplied by radio man...

Page 7: ...a basic layout of the system is shown in Figure 1 Component Part and Model Numbers Multiple Radio Interface Module Multiple Radio Interface Module Part Number 41021G 01 Flush Mounting SOLO Flush Mount Kit Model Number M9840FM optional accessory Cables Power Cable Model Number C98 20PW one required System Interface Requirements Series 9800 and SOLO Interface C98 20MR1 cable P N 40892G 13 qty 1 each...

Page 8: ...11 14 4 of 15 ON RX A ON RX B ON RX C ON RX D RADIO SELECT B C A D Radio A Radio B Radio C Radio D C98 20RD C98 20RD C98 20RD C98 20RD C98 20MR C98 20PW To Power Source To Host System R R Figure 1 Typical Layout ...

Page 9: ...ments may be necessary The M RIM is weather resistant however the mounting location should be chosen to minimize direct exposure to the elements Mounting q Using a Philips screwdriver remove the 4 screws on the cover of the M RIM and lift off the cover Observe the 4 mounting holes in each corner as shown in Figure 2 q Position the M RIM Drilling Template and mark each hole with a pencil q Confirm ...

Page 10: ...19537P 26 11 14 6 of 15 STAINLESS STEEL SCREW CUSTOMER PANEL 7 8 MAX DIMENSION STAINLESS STEEL NUT STAINLESS STEEL WASHER HEADSET STATION NYLON WASHER Figure 2 M RIM Mounting Diagram ...

Page 11: ...19537P 26 11 14 7 of 15 Figure 3 M RIM Mounting Template ...

Page 12: ...19537P 26 11 14 8 of 15 This page intentionally left blank ...

Page 13: ...19537P 26 11 14 9 of 15 ON RX A ON RX B ON RX C ON RX D RADIO SELECT B C A D Radio A Radio B Radio C Radio D Power Host System R R Figure 4 M RIM Connections ...

Page 14: ... and the M RIM The radios should already be installed and tested The cable should be routed using under deck conduits and be as far as possible from radio antenna coax cables and anywhere water may collect q Measure the length of cable necessary Add 3 feet for a service loop and trim q Route the cable The connector end connects to the M RIM Leave enough excess cable at the radio end for preparatio...

Page 15: ...892G 01 qty 1 each q Wire ties Procedure q Determine the path of the cable between the host system and the M RIM The host system should already be installed and tested The cable should be routed using under deck conduits and be as far as possible from radio antenna coax cables and anywhere water may collect q Route the cable and connect to the M RIM See Figures 1 4 for connector location q To conn...

Page 16: ... Cable with 40688G 47 2 Amp Fuse kit Procedure q Determine the location of a 2 Amp circuit breaker to be used and how to connect to it solder screw terminals lugs etc q If only a higher amperage circuit breaker is available it may be used but the David Clark 2 Amp Fuse Kit must also be used q Determine the location of the 11 30VDC and Ground pick off points q Determine the path of the cable betwee...

Page 17: ...where you are going to connect the power cable q Using the wire cutters and wire strippers prepare the end of the cable as necessary for your installation Figure 7 q If using the David Clark 2 Amp Fuse Kit please see Appendix A for assembly instructions q Connect the cable to the power source o Connect the RED to the positive terminal o Connect the BLACK and SHIELD to the negative terminal q Do no...

Page 18: ...rom the radios can be heard Each radio has its own RX Audio On Off switch 2 The Radio Select switch determines which radio is active for transmitting When the user presses PTT see instructions for host system they will be transmitting over the radio that is selected ON RX A ON RX B ON RX C ON RX D RADIO SELECT B C A D R R Figure 8 M RIM Controls ...

Page 19: ...another radio verify that you can hear key and speak over the selected radio see host system instructions o Verify TX audio level If adjustment is necessary refer to Appendix B for TX modulation adjustment o Repeat this procedure for the remaining radios Troubleshooting Symptom Possible Cause s No or low radio receive audio 1 Power applied to M RIM 2 Radio turned on 3 Radio s volume setting up to ...

Page 20: ...ce of 1 8 diameter heat shrink tubing over the red wire on the C98 20PW Power Cable 2 Thread red wire of power cord with heat shrink tubing into one end of fuse holder 3 Thread the heat shrink end of the 4 inch red wire into other end of fuse holder 4 Strip insulation on both wires 1 4 inch 5 Crimp fuse clips to both wires Recommended crimp tool Radio Shack No 64 409 or equivalent 6 Insert 2 amp f...

Page 21: ...tant to not increase the levels so much as to over modulate the radios This is in violation of FCC regulations and will seriously degrade the quality of the transmissions If you have the equipment to measure the modulation 4 4 5 KHz is an optimum level Receive Audio Level Adjustments The factory has pre set the receive audio adjustment potentiometers to levels which should be acceptable in most ap...

Page 22: ...19537P 26 11 14 B2 Figure B1 Adjustment Locations ...

Page 23: ...ations 1 Supply voltage 11 VDC Minimum 30 VDC Maximum 2 Input current 2 A Maximum 12VDC 1 A Typical 12VDC 3 RX audio input 8 5 V RMS Maximum 4 25 V RMS Typical 4 TX audio output 700 mV RMS Maximum 400 mV RMS Typical Table C1 Specifications ...

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