Cisco Systems NPE-175, NPE-225 manual RJ-45 connector, Pin 10/100 Signal Gigabit Ethernet Signal

Chapter 5 NPE-G1 Overview

Connection Equipment and Specifications

Note To comply with EMI EN55022 Class B regulations, shielded Ethernet cables must be used with the UBR7200-NPE-G1 in the Cisco uBR7246VXR router. Three shielded cables are included with the UBR7200-NPE-G1.

Figure 5-5shows an RJ-45 port and connector. Table 5-4lists the pinouts and signals for the RJ-45 port.

Figure 5-5 RJ-45 Port and Connector

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RJ-45 connector

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Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network 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	RJ-45 Port Pinouts
Pin	10/100 Signal	Gigabit Ethernet Signal
1	Tx Data+1	Tx A+
2	Tx Data–	Tx A–
3	Rx Data+2	Rx B+
4	N/C	Tx C+
5	N/C	Tx C–
6	Rx Data–	Rx B–
7	N/C	Rx D+
8	NC	Rx D-

1.Tx Data = Transmit Data

2.Rx Data = Receive Data

Note With reference to the RJ-45 pinout in Table 5-4, proper common-mode line terminations should be used 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 5-6and Figure 5-7for Gigabit Ethernet straight-through and crossover twisted-pair cable connections. Use Figure 5-8for Ethernet/Fast Ethernet straight-through and crossover twisted-pair cable connections.

Network Processing Engine and Network Services Engine Installation and Configuration

OL-4448-12 5-11