INSTALLATION AND OPERATION MANUAL Multiple-Radio Interface Module 41021G-01 19537P-26 (11-12) 2012 David Clark Company Incorporated
Table of Contents Cautions and Warnings .......................................................................................................... 1 Parts/Tools List ....................................................................................................................... 2 Supplied by David Clark ...................................................................................................... 2 Customer Supplied .............................................................................
Cautions and Warnings READ AND SAVE THESE INSTRUCTIONS. Follow the instructions in this installation manual. These instructions must be followed to avoid damage to this product and associated equipment. Product operation and reliability depends on proper installation. DO NOT INSTALL ANY DAVID CLARK COMPANY PRODUCT THAT APPEARS DAMAGED. Upon unpacking your David Clark product, inspect the contents for shipping damage.
Parts/Tools List Supplied by David Clark Multiple-Radio Interface Module M9840FM SOLO Flush Mount Kit C98-20PW Cable Assy, Power System Interface Cable C98-20RD* Radio Cables Headset Station Mounting Kit (P/N 41021G-01) (P/N 40688G-70) (P/N 40892G-02) (P/N system dependent) (P/N 40892G-01) (P/N 40688G-62) *Other versions available. Contact factory with radio make and model.
System Overview The Multiple-Radio Interface Module (M-RIM) is a weather-resistant radio interface designed for the marine environment. It is a companion product to the David Clark Series 3800, 9500, 9800, and Solo product lines, intended to increase the number of radios connected to the host system. The M-RIM allows up to four mobile radios to be connected to one radio port on the host system. Primary components of the system are indicated in Table 1.
Radio B Radio A C98-20RD* C98-20RD* C98-20RD* A Radio D Radio C B C C98-20RD* D R R RADIO SELECT ON ON ON ON RX A RX B RX C RX D C98-20PW C98-20MR* To Power Source To Host System Figure 1: Typical Layout 19537P-26 (11-12) 4 of 15
1. Surface Mounting the M-RIM Parts/Tools Required Multiple-Radio Interface Module (41021G-01) Pencil/Pen Drill 3/16” Drill Bit Drilling Template (Figure 3) Philips-head screwdriver Flat-head screwdriver 11/32-inch nut driver or wrench Procedure Location Considerations Select a location on a flat surface that is out-of-the-way, and provides adequate room to attach all cables. Be sure to allow for internal access, as adjustments may be necessary.
NYLON WASHER STAINLESS STEEL SCREW HEADSET STATION CUSTOMER PANEL 7/8” MAX.
Figure 3: M-RIM Mounting Template 19537P-26 (11-12) 7 of 15
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Radio A Radio B A B C Radio C Radio D D R R RADIO SELECT ON ON ON ON RX A RX B RX C RX D Power Host System Figure 4: M-RIM Connections 19537P-26 (11-12) 9 of 15
2. Radio Cables The C98-20RD Radio Cable is used to interface a marine or mobile radio to the M-RIM. One end of the cable connects to the M-RIM and the other end connects to the radio. Since the interface is different for each type of radio, the C98-20RD is left un-prepared at the radio end so that the installer may choose the correct interface. Note: This procedure applies only to the C98-20RD Radio Cable. Contact factory if assistance with other cables is needed.
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, 4200, 9500, or 9800 intercom systems. One end of the cable connects to the M-RIM and the other end connects to the intercom system. Parts/Tools Required System Interface Requirements: Series 9800 and SOLO Interface: o C98-20MR1 cable (P/N: 40892G-13, qty. 1 each) Series 3800 Interface: o C98-20RD cable (P/N: 40892G-01, qty.
4. Power Cable The C98-20PW is a 20-foot cable used to provide power to the M-RIM. It has a connector on one end and is unterminated on the other end. It is important to choose a power “pick-off” point that can provide at least two amperes of current at a voltage between 11-30VDC. Direct connection to a 2-Amp fuse/circuitbreaker is preferred.
Connect the cable to the jack on the M-RIM labeled “Power”, see Figures 1&4. To connect the cable to the M-RIM, align keyways and push. Then push and turn collar clockwise until it locks into place. Pull back gently on the cable to ensure connector is properly locked. Before continuing, ensure that power is shut off to the point where you are going to connect the power cable! Using the wire cutters and wire strippers, prepare the end of the cable as necessary for your installation (Figure 7).
5. Operation Use the M-RIM to control radio access to the host system. 1. The toggle switches control whether the RX audio from 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.
6. Testing & Troubleshooting Parts/Tools Required Completion of the previous installation sections (1-4) in their entirety Read section 5, Operation An assistant (optional) Test Procedure Double-Check all connections and wiring from the previous sections. Complete connections of power cables to power source. Turn on power at the pick-off point/source. Verify that receive audio from all radios is heard (see host system instructions). Verify transmit access to all radios.
Appendix A P/N 40688G-47 Waterproof Fuse Kit Installation Instructions Parts/Tools Required • • • • • 1/8-inch diameter heat shrink tubing Wire strippers Crimp tool (Radio Shack P/N 64-409 or equivalent) Crimp terminals 2-Amp fuse kit Procedure 1. Using a heat gun, install 1/8" diameter heat shrink tubing* over one end of the 4" red wire (supplied). Install the second piece of 1/8" diameter heat shrink tubing over the red wire on the C98-20PW Power Cable. 2.
Appendix B M-RIM Adjustments Transmit Audio Level Adjustments Under most circumstances these adjustments have been pre-set to optimum levels and should never need to be performed in the field. However, they are included in this section should their adjustment be necessary.
Figure B1: Adjustment Locations 19537P-26 (11-12) B2
Appendix C Specifications 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.
