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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-03
Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers Shared Port Adapters
2-Port and 4-Port OC-3c/STM-1 POS SPA Overview
2-Port and 4-Port OC-3c/STM-1 POS SPA Overview
The 2-Port and 4-Port OC-3c/STM-1 POS SPA is a single-height SPA that installs into one SIP subslot.
The 2-Port and 4-Port OC-3c/STM-1 POS 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. The 2-Port and 4-Port OC-3c/STM-1 POS SPA operates at quarter rate.
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 SPAs and their compatibility with SIPs and modular optics, see the
and SPA Compatibility” section on page 1-2
The following sections describe the 2-Port and 4-Port OC-3c/STM-1 POS SPA:
•
2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs, page 3-31
•
2-Port and 4-Port OC-3c/STM-1 POS SPA Interface Specifications, page 3-32
•
2-Port and 4-Port OC-3c/STM-1 POS SPA Optical Transceiver Modules and Cables, page 3-32
2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs
The 2-Port and 4-Port OC-3c/STM-1 POS SPA has three types of LEDs: two LEDs for each port on the
SPA, and one STATUS LED, as shown in
.
Figure 3-22
4-Port OC-3c/STM-1 POS SPA Faceplate
describes the 2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs.
1
C/A (Carrier/Alarm) LED
3
STATUS LED
2
A/L (Active/Loopback) LED
ST
ATUS
0
1
2
3
A/L
C/A
A/L
C/A
A/L
C/A
A/L
C/A
122938
1
2
3
Table 3-26
2-Port and 4-Port OC-3c/STM-1 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
without any alarms.
Amber
On
Port is enabled by software, and there is at least one alarm.