Installing a Cisco 12008 3-33
Connecting Route Processor Cables
Depending on your RJ-45 cabling requirements, use the cable pinouts shown in Figure 3-
14 or Figure 3-15.
Figure 3-14 Straight-Through Cable Pinout (Connecting MDI Ethernet Port to
MDI-X Wiring)
Figure 3-15 Crossover Cable Pinout (for Connecting Two PRPs)
Table 3-8 lists the cabling specifications for 100-Mbps transmission over unshielded
twisted-pair (UTP) cables.
Note The transmission speed of the Ethernet ports is auto-sensing by default and is user
configurable.
MDI-X wiringMDI wiring
1 TxD+
2 TxD–
3 RxD+
6 RxD–
1 RxD+
2 RxD–
3 TxD+
6 TxD–
H11007
PRP
1 TxD+
2 TxD–
3 RxD+
6 RxD–
1 TxD+
2 TxD–
3 RxD+
6 RxD–
75431
PRP