Cisco CRS-1 - Carrier Routing System Router Hardware Installation Guide

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Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
OL-17439-01
Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
8-Port OC-12c/STM-4 Multirate POS SPA Overview
8-Port OC-12c/STM-4 Multirate POS SPA Overview
The 8-Port OC-12c/STM-4 Multirate POS SPA is a single-height SPA that installs into one SIP subslot.
The SPA with small form-factor pluggable (SFP) optical transceiver modules provides Optical Carrier
Level (OC-n) for SONET and Synchronous Transport Module (STM-n) for SDH network connectivity.
On this SPA, any given port can use either an OC-3 or OC-12 SFP module, so the per-port bandwidth
can be either 155.52 Mbps or 622.08 Mbps, respectively, depending on the customer configuration.
Note When SFP modules are replaced, the SPA interface retains any previously defined configurations. These
configurations include settings for IP address, clock source, loopback, CRC, and POS flags.
For more information about SPA bandwidth, see the “Bandwidth Oversubscription” topic 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 8-Port OC-12c/STM-4 Multirate POS SPA:
• 8-Port OC-12c/STM-4 Multirate POS SPA LEDs, page 3-14
• 8-Port OC-12c/STM-4 Multirate POS SPA Interface Specifications, page 3-15
• 8-Port OC-12c/STM-4 Multirate POS SPA Optical Transceiver Modules and Cables, page 3-15
8-Port OC-12c/STM-4 Multirate POS SPA LEDs
The 8-Port OC-12c/STM-4 Multirate POS SPA has three types of LEDs: two LEDs for each port on the
SPA and one STATUS LED. Figure 3-11 sho
ws the 8-Port OC-12c/STM-4 Multirate POS SPA faceplate.
Figure 3-11 8-Port OC-12c/STM-4 Multirate POS SPA Faceplate
Table 3-7 describes the 8-Port OC-12c/STM-4 Multirate POS SPA LEDs.
1 C/A (Carrier/Alarm) LED 3 STATUS LED
2 A/L (Active/Loopback) LED
STATUS
SPA-8XOC12-POS
138896
3
3
C/A
A/L
0
C/A
A/L
1
C/A
A/L
2
C/A
A/L
21
4
C/A
A/L
5
C/A
A/L
6
C/A
A/L
7
C/A
A/L
Ta b l e 3-7 8-Port OC-12c/STM-4 Multirate POS SPA LEDs
LED Label Color State Meaning
C/A Off Off SONET controller is shut down.
Green On Port is enabled by software, and there is a valid SONET signal
w
ithout any alarms.
Amber On Port is enabled by software, and
there is at least one alarm.

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English