3Com Router 5000 and Router 6000 v2.41
Module Guide Chapter 2 Smart Interface Cards
2-22
2.5.5 Interface Cable Router 1-Port Fractional T1 SIC interface cable is 100-ohm standard shielded network
cable that has RJ45 connectors at both ends. The following figure illustrates a Router
1-Port Fractional T1 SIC interface cable:
Figure 2-22 T1 cable
For the pinouts of T1 cable, see Low-End and Mid-Range Series Routers Cable
Manual.
Caution:
Relevant cables are included in the standard shipment package of Router 1-Port Fractional T1 SIC.
Caution:
z You should connect a cable to the port with the correct mark. Misplugging is prone to impair the
SIC/MIM and even damage the router.
z When using T1 cable outdoors, you are recommended to install a special lightning arrester on the
input end of the cable so as to avoid lightning more effectively.
If the SIC has been properly installed, follow these steps to connect the cable:
Step 1: Connect one end of the T1 cable to the RJ45 port of Router 1-Port Fractional
T1 SIC;
Step 2: Connect the other end of the T1 cable to the relevant equipment;