Cisco XR 12000 Series Hardware Installation Guide

2-7
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
2-Port and 4-Port Channelized T3 to DS0 SPA Overview
• 2-Port and 4-Port Channelized T3 SPA Cables and Connectors, page 2-8
2-Port and 4-Port Channelized T3 SPA LEDs
The 2-Port and 4-Port Channelized T3 SPA has three types of LEDs. There are two LEDs for each port
on the SPA, and one STATUS LED. Figure 2-2 shows an example of these LEDs on a 4-Port Channelized
T3 SPA.
Figure 2-2 4-Port Channelized T3 SPA Faceplate
The 2-Port and 4-Port Channelized T3 SPA LEDs are described in Table 2-5.
2-Port and 4-Port Channelized T3 SPA Interface Specifications
The framer processes incoming and outgoing T3 frames (cbit, m13/m23, and unframe) and E3 (g751,
g832) frames. The framer operates at T3/E3 line rates (44.2 44.736/34.368 Mbps) depending on the
mode in which it is configured.
1 C/A (Carrier/Alarm) LED 4 RX (Receive) connector
2 A/L (Active Loopback) LED 5 STATUS LED
3 TX (Transmit) connector
C/A
TX
RX
1
STAT US
SPA-4XCT3/DS0
0
A/L
C/A
TX
RX
A/L
C/A
TX
RX
2
A/L
C/A
TX
RX
3
A/L
1
2
3 4 5
116854
Table 2-5 2-Port and 4-Port Channelized T3 SPA LEDs
LED Label Color State Meaning
C/A Off Off Port is not enabled by software.
Green On Port is enabled by software, and there is a valid E3 or T3
signal without any alarms.
Amber On Port is enabled by software, and there is at least one alarm.
A/L Off Off Port is not enabled by software.
Green On Port is enabled by software, loopback is off.
Amber On Port is enabled by software, loopback is on.
STATUS Off Off SPA power is off.
Green On SPA is ready and operational.
Amber On SPA power is on and good, and SPA is being configured.

Cisco XR 12000 Series Specifications

General

Brand	Cisco
Model	XR 12000 Series
Category	Network Router
Language	English