2-Port And 4-Port Oc-3/Stm-1 Pos Spa Leds - Cisco XR 12000 Series Hardware Installation Manual

Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters
When SFP modules are replaced, the SPA interface retains any previously defined configurations. These
Note
configurations include settings for IP address, clock source, loopback, Cyclic Redundancy Check
(CRC), and POS flags.
For more information about SPA bandwidth, see the "Bandwidth Oversubscription" section in this
chapter. For more information about SPAs and their compatibility with SIPs and modular optics, see the
"SIP and SPA Product Overview" chapter in this guide.
The following sections describe the 2-Port and 4-Port OC-3/STM-1 POS SPA:
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•
•

2-Port and 4-Port OC-3/STM-1 POS SPA LEDs

The 2-Port and 4-Port OC-3/STM-1 POS SPA has three types of LEDs: two LEDs for each port on the
SPA and one STATUS LED.
Figure 2-31
1
2
Table 2-33
Table 2-33
LED Label
C/A
A/L
OL-17438-04
2-Port and 4-Port OC-3/STM-1 POS SPA LEDs, page 2-45
2-Port and 4-Port OC-3/STM-1 POS SPA Interface Specifications, page 2-46
2-Port and 4-Port OC-3/STM-1 POS SPA Optical Transceiver Modules and Cables, page 2-46
Figure 2-31
4-Port OC-3/STM-1 POS SPA Faceplate
1
2
C/A (Carrier/Alarm) LED
A/L (Active/Loopback) LED
describes the 2-Port and 4-Port OC-3/STM-1 POS SPA LEDs.
2-Port and 4-Port OC-3/STM-1 POS SPA LEDs
Color State
Off Off
Green On
Amber On
Off Off
Green On
Amber On
shows the 4-Port OC-3/STM-1 POS SPA.
3
STATUS LED
Meaning
SONET controller is shut down.
Port is enabled by software, and there is a valid SONET signal
without any alarms.
Port is enabled by software, and there is at least one alarm.
Interface is shut down.
Port is enabled by software, and loopback is off.
Port is enabled by software, and loopback is on.
Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
4-Port OC-3/STM-1 POS SPA Overview
3
2-45