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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 Channelized T3 Serial SPA Overview
2-Port and 4-Port Channelized T3 Serial SPA Overview
The following sections describe the 2-Port and 4-Port Channelized T3 Serial SPA:
•
2-Port and 4-Port Channelized T3 Serial SPA LEDs, page 3-4
•
2-Port and 4-Port Channelized T3 Serial SPA Interface Specifications, page 3-5
•
2-Port and 4-Port Channelized T3 Serial SPA Cables and Connectors, page 3-5
2-Port and 4-Port Channelized T3 Serial SPA LEDs
The 2-Port and 4-Port Channelized T3 Serial SPA has three types of LEDs: two LEDs for each port on
the SPA, and one STATUS LED, as shown in
Figure 3-2
4-Port Channelized T3 Serial SPA Faceplate
Table 3-2
2-Port and 4-Port T3/E3 Clear Channel Serial SPA Connectors
Connector Label
Meaning
TX
Transmitted signals appear on the center contact, and the outer shield is ground
for the 75-ohm RG-59 coaxial cable you attach to the TX Siemax connector.
RX
Received signals appear on the center contact, and the outer shield is ground for
the 75-ohm RG-59 coaxial cable you attach to the RX Siemax connector.
1
C/A (Carrier/Alarm) LED
4
RX (Receive) connector
2
A/L (Active Loopback) LED
5
STATUS LED
3
TX (Transmit) connector
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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