Cisco XR 12000 Series Bedienungsanleitung PDF herunterladen (Seite 99)

2-69

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

1-Port and 3-Port Clear Channel OC-3 ATM SPA Overview

The 1-Port and 3-Port Clear Channel OC-3 ATM SPA is a single-height SPA that installs into one SIP

subslot. The Clear Channel OC-3 ATM SPA with small form-factor pluggable (SFP) optical transceiver

modules provides SONET and SDH network connectivity with a per-port bandwidth of 155.52 Mbps.

For more information about SPA bandwidth, see the “Bandwidth Oversubscription” section in this

chapter.

The following sections describe the 1-Port and 3-Port Clear Channel OC-3 ATM SPA:

• 1-Port and 3-Port Clear Channel OC-3 ATM SPA LEDs, page 2-69

• 1-Port and 3-Port Clear Channel OC-3 ATM SPA Interface Specifications, page 2-70

• 1-Port and 3-Port Clear Channel OC-3 ATM SPA Cables and Connectors, page 2-70

1-Port and 3-Port Clear Channel OC-3 ATM SPA LEDs

The 1-Port and 3-Port Clear Channel OC-3 ATM SPA has three types of LEDs. There are two LEDs for

each port on the SPA, and one STATUS LED.

Figure 2-50 shows an example of these LEDs on a 3-Port

Clear Channel OC-3 ATM SPA.

Figure 2-50 3-Port Clear Channel OC-3 ATM SPA Faceplate

The 1-Port and 3-Port Clear Channel OC-3 ATM SPA LEDs are described in Table 2-45.

1 C/A (Carrier/Alarm) LED 3 STATUS LED

2 A/L (Active Loopback) LED

STATUS

A/L

C/A

Port 0

Port 1

Port 2

SPA-3XOC3-ATM-V2

270697

31 2

Ta bl e 2-45 1-Port and 3-Port Clear Channel OC-3 ATM 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 SONET 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.

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