Cisco XR 12000 Series Hardware Installation Guide

2-10
Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
OL-17438-04
Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters
8 Port FastEthernet SPA Overview
Warning Shielded twisted pair (STP) T1/E1 cables must be used to comply with EN55022/CISPR22 Class A
emissions requirements. For revisions 73-8358-05 through 73-8358-08 Shielded Twisted pair (STP)
T1/E1 cables must be used to comply with FCC Class A emissions requirements.
8-Port Channelized T1/E1 SPA Cables, Connectors, and Pinouts
Figure 2-4 shows an RJ-45 connector.
Note The terms RJ-45 and RJ-48c are sometimes used interchangeably. The RJ-48c is the jack or receptacle;
the RJ-45 is the connector.
Figure 2-4 RJ-45 Connector
Table 2-8 describes the signals and connector pinouts for RJ-45 cable connectors.
8 Port FastEthernet SPA Overview
The following sections describe the 8-Port FastEthernet SPA:
• 8-Port FastEthernet SPA LEDs, page 2-11
• 8-Port FastEthernet SPA Cables, Connectors, and Pinouts, page 2-11
32770
RJ-45
RJ-48c
Pin 1
Pin 8
Table 2-8 RJ-45 Connector Pinouts
Pin Signal Description
1 RX– Receive ring –
2 RX+ Receive tip +
3 NC No connection
4 TX– Transmit ring –
5 TX+ Transmit tip +
6 NC No connection
7 NC No connection
8 NC No connection

Cisco XR 12000 Series Specifications

General

Brand	Cisco
Model	XR 12000 Series
Category	Network Router
Language	English