3-4
Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-08
Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
2-Port and 4-Port Channelized T3 SPA Overview
Cisco 7600 SIP-400 Oversubscription Guidelines
As of Cisco IOS Release 12.2(18)SXF, when using the Cisco 7600 SIP-400 with the 2-Port Gigabit
Ethernet SPA or the 1-Port OC-48c/STM-16 ATM SPA, consider the following oversubscription
guidelines:
•
The 7600-SIP-400 only supports installation of one 1-Port OC-48c/STM-16 ATM SPA without any
other SPAs installed in the SIP.
•
The 7600-SIP-400 supports installation of up to two 2-Port Gigabit Ethernet SPAs without any other
SPAs installed in the SIP.
•
The 7600-SIP-400 supports installation of any combination of a OC-3, OC-12 POS, CEoP, or ATM
SPAs, up to a combined ingress bandwidth of OC-48 rates.
•
The 7600-SIP-400 supports installation of any combination of OC-3, OC-12 POS, CEoP, or ATM
SPAs up to a combined ingress bandwidth of OC-24 rates, when installed with a single 2-Port
Gigabit Ethernet SPA.
•
The 7600-SIP-400 supports installation of a single 1-Port 10-Gigabit Ethernet SPA without any
other SPAs installed in the 7600-SIP-400.
Note
A 1-Port 10-Gigabit Ethernet SPA on a 7600-SIP-400 provides 4 Gbps of bandwidth.
2-Port and 4-Port Channelized T3 SPA Overview
The following sections describe the 2-Port and 4-Port Channelized T3 SPA:
•
2-Port and 4-Port Channelized T3 SPA LEDs, page 3-4
•
2-Port and 4-Port Channelized T3 SPA Interface Specifications, page 3-5
•
2-Port and 4-Port Channelized T3 SPA Cables and Connectors, page 3-5
2-Port and 4-Port Channelized T3 SPA LEDs
The 2-Port and 4-Port Channelized T3 SPA has three types of LEDs. There are two LEDs for each port
on the SPA, and one STATUS LED.
Figure 3-1
shows an example of these LEDs on a 4-Port Channelized
T3 SPA:
Figure 3-1
4-Port Channelized T3 SPA Faceplate
C/A
TX
RX
1
ST
ATUS
SPA-4XCT3/DS0
0
A/L
C/A
TX
RX
A/L
C/A
TX
RX
2
A/L
C/A
TX
RX
3
A/L
1
2
3
4
5
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