Cisco NPE-175 Installation And Configuration Manual page 53

Chapter 5 NPE-G1 Overview
To comply with EMI EN55022 Class B regulations, shielded Ethernet cables must be used with the
Note
UBR7200-NPE-G1 in the Cisco uBR7246VXR router. Three shielded cables are included with the
UBR7200-NPE-G1.
Figure 5-5
Figure 5-5
1 RJ-45 connector
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network
Warning
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some
LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021
Table 5-4
Pin
1
2
3
4
5
6
7
8
1. Tx Data = Transmit Data
2. Rx Data = Receive Data
With reference to the RJ-45 pinout in
Note
for the unused Category 5 UTP cable pairs 4/5 and 7/8. Common-mode termination reduces
electromagnetic interference (EMI).
Depending on your RJ-45 interface cabling requirements, use the pinouts shown in
Figure 5-7
Figure 5-8
OL-4448-12
shows an RJ-45 port and connector.
RJ-45 Port and Connector
RJ-45 Port Pinouts
10/100 Signal
1
Tx Data+
Tx Data–
2
Rx Data+
N/C
N/C
Rx Data–
N/C
NC
for Gigabit Ethernet straight-through and crossover twisted-pair cable connections. Use
for Ethernet/Fast Ethernet straight-through and crossover twisted-pair cable connections.
Network Processing Engine and Network Services Engine Installation and Configuration
Table 5-4 lists the pinouts and signals for the RJ-45 port.
12345678
1
Gigabit Ethernet Signal
Tx A+
Tx A–
Rx B+
Tx C+
Tx C–
Rx B–
Rx D+
Rx D-
Table 5-4, proper common-mode line terminations should be used
Connection Equipment and Specifications
Figure 5-6 and
5-11