3Com Router 3016 Installation Manual page 32

32 C 3: I
HAPTER NSTALLING THE
Connecting to the
CT1/PRI Port
Connecting to the
ISDN Port
R
OUTER
The Router 3016 provides a CT1/PRI port that provides CT1 (channelized T1)
access and Implements the ISDN PRI function. See CT1/PRI interface attributes.
CT1/PRI cable is a 100 ohm shielded straight-through cable and both ends of
which are RJ45 connectors, as shown in Figure 16.
Figure 16 T1 Cable
For pinout details of the T1 cable, see Appendix A.
To connect the T1 cable:
1 Turn off power to the router.
Caution: Identify the mark on the CT1/PRI port. Plugging the connector in
incorrectly can cause damage to the router.
2 Insert the connector at one end of the T1 cable into the CT1/PRI port of the router.
3 Insert the connector at the other end of the T1 cable into the corresponding
device.
4 Power on the router and verify that T1-LNK LED on the top of the router chassis is
lit. If it is off, check the connection cable.
The Router 3013 router provides an ISDN S/T port, and the Router 3015 router
provides an ISDN U port. These routers perform data transfer in 2B+D mode and
support both ISDN dial-up and leased line. See for the ISDN interface attributes.
ISDN S/T Cable
The ISDN S/T cable for the Router 3013, shown in Figure 17, is a 4-core twisted
pair cable. Both ends of the cable have RJ-45 connectors, of which, 3-pin and
6-pin are sending end, and 4-pin and 5-pin are receiving end.
Figure 17 ISDN S/T Cable
ISDN U Cable
The ISDN U cable for the Router 3015 router, shown in Figure 18, is a 2-core
twisted pair. One end has an RJ11 connector and the other end has an output
terminal (OT) connector.