2-44
Cisco 12000 Series Router SIP and SPA Hardware Installation Guide
Release 12.0(32)SY1, OL-8831-01, Rev. G6, July 19, 2007
Chapter 2 Overview: Cisco 12000 Series Router Shared Port Adapters
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA, 4-Port OC-3c/STM-1 POS SPA, and 8-Port
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS
SPA, 4-Port OC-3c/STM-1 POS SPA, and 8-Port OC-3c/STM-1
POS SPA Overview
This section provides the hardware overview for the following SPAs:
•
2-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA
•
4-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA
•
8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA
•
4-Port OC-3c/STM-1 POS SPA
•
8-Port OC-3c/STM-1 POS SPA
The 2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA and the 4-Port and 8-Port
OC-3c/STM-1 POS SPA are single-height SPAs that each install into one SIP subslot. The SPAs with
small form-factor pluggable (SFP) optical transceiver modules provide Optical Carrier Level (OC-N) for
SONET and
Synchronous Transport Module (STM-N) for
SDH network connectivity. For the OC-3 SPAs,
the per-port bandwidth is 155.52 Mbps. For the OC-12 SPAs, any given channel can be configured as
either OC-3 or OC-12, 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. This
includes settings for IP address, clock source, loopback, CRC, and POS flags.
The 8-port OC-12c/STM-4 POS SPA is a full rate SPA; therefore, it can only be installed in subslots 1
or 2 of the SIP. The 4-Port and 8-Port OC-3c/STM-1 POS SPA and the 2-Port, 4-Port, and 8-Port
OC-3c/STM-1 and OC-12c/STM-4 POS SPAs are all half rate SPAs.
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 2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS
SPA and the 4-Port and 8-Port OC-3c/STM-1 POS SPA:
•
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA and 4-Port and 8-Port
OC-3c/STM-1 POS SPA LEDs, page 2-44
•
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA and 4-Port and 8-Port
OC-3c/STM-1 POS SPA Interface Specifications, page 2-45
•
1-Port OC-192c/STM-64 POS/RPR SPA Fixed Optical Transceiver, 40-Pin Connector, and Cables,
page 2-36
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA and 4-Port
and 8-Port OC-3c/STM-1 POS SPA LEDs
The 2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA and the 4-Port and 8-Port
OC-3c/STM-1 POS SPA have three LEDs: two LEDs for each port on the SPA and one STATUS LED.
Figure 2-29
shows the 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA faceplate.