USER MANUAL Gateway Expander Module U9925
Contents
1. SYSTEM SYSTEM Figure 1 Overview of Gateway Expander Module 19542P 91 12 11 2 of 5 Installation Power The U9925 GEM is powered using the C98 20PW 20 foot power cable This cable may be cut to the required length Connect the flying leads RED and Black to an 8 32VDC power source fused at 2A Attach the molded connector end of the cable to the POWER input on the U9925 GEM RED To 2 amp w circuit breaker fuse BLACK SHIELD Figure 2 C98 20PW Power Cable The C98 20PW is supplied with a fuse kit which may be used if a 2A fused power source is not available See Figure 3 below for assembly details STEP 4 STRIP n STEP 1 INSULATION HEAT SHRINK TUBING OVER RED WIRE HEAT SHRINK TUBING OVER RED WIRE Figure 3 Fuse Kit Assembly 19542P 91 12 11 30f5 Gateway Connection Using the appropriate cable see Table 1 below connect up to four wireless gateways to the SYSTEM ports on the U9925 GEM see Figure 1 Wireless Gateway Cable Assy Required U9922 G3 8 EU P N 40995G 01 02 C99 20MS P N 40935G 05 U9921 GUV EU P N 40994G 01 02 40828G 41 amp 13265P 55 connector customer installed Operation Table 1 System Cables The U9925 GEM Gateway Expander Module does not have a user interface and does not require configuration Once installed and power is applied all connected gateways will function as if they w2. WWW DAVIDCLARK COM USER MANUAL Gateway Expander Module U9925 GEM P N 40995G 03 19542P 91 12 11 2011 DAVID CLARK COMPANY INCORPORATED 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 usage DO NOT INSTALL ANY DAVID CLARK COMPANY PRODUCT THAT Y 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 ve representative or authorized agent of the David Clark Company lt gt STATIC HAZARD Static electricity can damage components W Therefore be sure to ground yourself before opening or installing components 19542P 91 12 11 10f5 Overview The U9925 GEM 40995G 03 Gateway Expander Module is a fixed mounted device that allows two three or four U9922 G38 40995G 01 gateways to be connected together creating a wireless only intercom of up to 16 users SYSTEM SYSTEM Model U9925 GEM Gateway Expansion Module P N 40995G 03 e L David Clark compa INCORPORATED 360 Franklin Street Box 15054 Worcester MA 01615 0054
3. ere connected to an intercom Communication between wireless users connected to all gateways is now possible Up to 16 users can communicate with one U9925 GEM Refer to the appropriate wireless gateway instruction manual for additional information Notes 19542P 91 12 11 When the Expander Module is used with multiple U9922 G38 gateways a C3821 Radio Interface Cable P N 18747G 06 must be connected to each gateway requiring radio transmit receive capability Any radio connected to one Gateway will be monitored by all users within the U9925 GEM system regardless of the Gateway to which they are connected However radio transmit will only be provided to those users linked to a Gateway which is in turn connected to the radio via a C3821 cable For ease of radio install multiple C3821 cables may be wired to individual MS connectors P N 18352G 17 and collected through a U3805 Radio Junction Module P N 41035G 01 which can then route a single C3821 directly to the radio See C3821 Installation Operation Instructions doc 19510P 87 When the Expander Module is used with U9921 GUV gateways there is no provision to interface to a two way radio 40f5 Care and Maintenance If necessary the U9925 GEM may be wiped down with a mild soap and water mixture Avoid storage of this product in direct sunlight or high temperature environments The U9925 GEM is not user serviceable Do not attempt to open the enclosure Ifthis product requ
4. ires service please contact the David Clark Customer Service department e Phone 800 298 6235 e E Mail serviceWWW DavidClark com e ByMail Customer Service David Clark Company 360 Franklin Street Worcester MA 01604 Specifications Operating Temperature 14 F to 113 F 10 C to 45 C Storage Temperature 4 F to 140 F 20 C to 60 C Power Requirements 8 to 32 VDC 19542P 91 12 11 5 of 5
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