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Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-14
Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
2-Port and 4-Port OC-3c/STM-1 ATM SPA Overview
2-Port and 4-Port OC-3c/STM-1 ATM SPA LEDs
The 2-Port and 4-Port OC-3c/STM-1 ATM SPA has three types of LEDs. There are two LEDs for each
port on the SPA, and one STATUS LED.
Figure 3-11
shows an example of these LEDs on a 4-Port
OC-3c/STM-1 ATM SPA:
Figure 3-11
4-Port OC-3c/STM-1 ATM SPA Faceplate
The 2-Port and 4-Port OC-3c/STM-1 ATM SPA LEDs are described in
Table 3-10
.
2-Port and 4-Port OC-3c/STM-1 ATM SPA Interface Specifications
The physical layer interface for the 2-Port and 4-Port OC-3c/STM-1 ATM SPA is Optical Carrier-3
(OC-3), and the data link layer is designed to comply with ATM specifications. The 2-Port and 4-Port
OC-3c/STM-1 ATM SPA provides up to four 155-Mbps OC-3 network interfaces for all supported
platforms.
Each SPA port accepts an SFP module with a duplex LC-type receptacle that allows connection to
single-mode or multimode optical fiber.
1
C/A (Carrier/Alarm) LED
3
STATUS LED
2
A/L (Active Loopback) LED
SPA-4XOC3-ATM
ST
ATUS
3
117102
0
C/A
A/L
0
C/A
A/L
0
C/A
A/L
0
C/A
A/L
1
2
Table 3-10
2-Port and 4-Port OC-3c/STM-1 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.
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.
Amber
On
SPA power is on and good, and SPA is being configured.
Green
On
SPA is ready and operational.