Router Installation Guide

Chapter 3 Installing the Router
Connecting the PRP to an Ethernet Network
3-21
Cisco XR 12404 Router Installation Guide
OL-13830-02
Warning The ports labeled Ethernet, 10BASE-T, Token Ring, Console, and AUX are safety
extra-low voltage (SELV) circuits. SELV circuits should only be connected to
other SELV circuits. Because the BRI circuits are treated like
telephone-network voltage, avoid connecting the SELV circuit to the telephone
network voltage (TNV) circuits.
Depending on your RJ-45 cabling requirements, use the cable pinouts shown in
Figure 3-12 or Figure 3-13.
Figure 3-12 Straight-Through Cable Pinout—Connecting MDI Ethernet Port
to MDI-X Wiring
Table 3-3 PRP RJ-45 Ethernet Receptacle Pinout
Ethernet Port Pin Signal Description
1 TxD+ Transmit data +
2 TxD– Transmit data –
3 RxD+ Receive data +
4 Termination Network No connection
5 Termination Network No connection
6 RxD– Receive data –
7 Termination Network No connection
8 Termination Network No connection
MDI-X wiringMDI wiring
1 TxD+
2 TxD–
3 RxD+
6 RxD–
1 RxD+
2 RxD–
3 TxD+
6 TxD–
H11007
todd.book Page 21 Tuesday, July 24, 2007 3:54 PM