3Com 3C13755-US - Router 5642 Installation Manual

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3Com 3C13755-US - Router 5642 Installation Manual Manual pdf 47 page image

4-port ISDN S/T MIM 45Cables The T1 interface cable for 2-Port T1/CT1/PRI MIM modules is the 100-ohmstraight-through shielding network cable. You must order the cable you need from3Com when you order the interface card. To prevent damage to your router andto avoid voiding your warranty, use only the appropriate cable offered by 3Com.The T1 cable is shown in Figure 48.Figure 48 T1 CableIn addition, you may choose to use the network interface connector to extend theT1 cable. Both ends of the connector are RJ-45 jacks that can connect twonetwork cables. Note that both T1 cable and network interface connector areoptional accessories. You should order them together with the 2-Port T1/CT1/PRIMIM.To connect the interface cable:1 Power off the router.2 Insert one end of the T1 cable into the RJ-45 connector on the T1 module.3 Connect the other end of T1 cable to the peer device. If the cable is long enough,connect it directly to the peer device.If the T1 cable is not long enough, extend it as shown in Figure 49.Figure 49 Extending the T1 cable4 Power on the router, and check the corresponding READY LED for the slot on thefaceplate of the router. If the LED is on, the module passed the power-on self-test(POST) and can work normally. If the LED is off, the module failed to pass thePOST. Contact your Service representative.5 Check the state of synchronous LINK LED on the panel of the 2-Port T1/CT1/PRIMIM. If it is off, the line failed. Check the line to locate the problem.4-port ISDN S/T MIM The 4-Port ISDN S/T MIM transceiver and processes the 4-channel data stream onthe ISDN BRI S/T interface. The 4-Port ISDN S/T MIM can work in dialup mode andleased line service mode.The 4-port ISDN S/T MIM can be installed in any of the Router 5000 Family, exceptthe Router 5012RJ-45RJ-45RJ-45Straight-throughnetwork cableT1 cable (100-ohmstraight-throughshielded network cable)NetworkinterfaceconnectorLeasedline, etc.