8-Port Channelized T1/E1 Spa Interface Specifications; 8-Port Channelized T1/E1 Spa Cables, Connectors, And Pinouts; Figure 2-4 Rj-45 Connector; Table 2-7 8-Port Channelized T1/E1 Spa Leds - Cisco 12000 - Series Chassis Modular Expansion Base Hardware Installation Manual

Chapter 2 Overview: Cisco 12000 Series Router Shared Port Adapters
Table 2-7
LED Label
C/A
A/L
STATUS

8-Port Channelized T1/E1 SPA Interface Specifications

The E1 interface on the 8-Port Channelized T1/E1 SPA uses RJ-48c receptacles for E1 (120-Ohm) cables
with RJ-45 connectors. You can use all ports simultaneously. Each E1 connection supports interfaces that
meet G.703 standards. The RJ-45 connection does not require an external transceiver. The E1 ports are
E1 interfaces that use 120-ohm unshielded twisted pair (UTP) cables.

8-Port Channelized T1/E1 SPA Cables, Connectors, and Pinouts

Figure 2-4
The terms RJ-45 and RJ-48c are sometimes used interchangeably. The RJ-48c is the jack or receptacle;
Note
the RJ-45 is the connector.
Figure 2-4
Pin 1
Table 2-8
Table 2-8
Pin
1
2
Release 12.0(32)SY1, OL-8831-01, Rev. G6, July 19, 2007
8-Port Channelized T1/E1 SPA LEDs
Color
Off
Green
Amber
Off
Green
Amber
Off
Amber
Green
shows an RJ-45 connector.
RJ-45 Connector
Pin 8
describes the signals and connector pinouts for RJ-45 cable connectors.
RJ-45 Connector Pinouts
Signal
RX–
RX+
State Meaning
Off Port is not enabled by software.
On Port is enabled by software, and there is a valid T1 or E1 signal
without any alarms.
On Port is enabled by software, and there is at least one alarm.
Off Port is not enabled by software.
On Port is enabled by software, loopback is off.
On Port is enabled by software, loopback is on.
Off SPA power is off.
On SPA power is on and good, and SPA is being configured.
On SPA is ready and operational.
RJ-45
RJ-48c
Description
Receive ring –
Receive tip +
Cisco 12000 Series Router SIP and SPA Hardware Installation Guide
8-Port Channelized T1/E1 SPA Overview
2-9