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 1 SIP and SPA Product Overview
Introduction to SIPs and SPAs
Shared Port Adapters
The following list describes some of the general characteristics of a SPA:
• A SPA is a modular type of port adapter that inserts into a subslot of a compatible SIP carrier card
to provide network connectivity and increased interface port density. A SIP can hold one or more
SPAs, depending on the SIP type and the SPA size.
• SPAs are available in the following sizes, as shown in Figure 1-1 and Figure 1-2:
– Single-height SPA—Inserts into one SIP subslot.
– Double-height SPA—Inserts into two single, vertically aligned SIP subslots.
Figure 1-1 Single-Height and Double-Height SPA Sizes
Figure 1-2 Subslot Numbering for SPAs
•
Each SPA provides a certain number of connectors, or ports, that are the interfaces to one or more
networks. These interfaces can be individually configured using the Cisco IOS XR software
command-li
ne interface (CLI).
Single-height SPASingle-height SPA
Double-height SPA
Front of SIP
129312
SPA 0 SPA 1 SPA 3 SPA 4
SPA 2 SPA 5
SPA 1
Double-height SPA
SPA 2
Double-height SPA
Double-height SPA
SPA 2SPA 0
129313
SPA 1
SPA 0
Double-height SPADouble-height SPA SPA 4

Cisco CRS-1 - Carrier Routing System Router Specifications

General

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