The T3/E3 SPA interface is compliant with ANSI and Telco standards. The interface also provides support
for Management Information Base (MIB) RFC 2496 and T1.231.
2-Port and 4-Port Clear Channel T3/E3 SPA Cables and Connectors
The interface connectors on the 2-Port and 4-Port Clear Channel T3/E3 SPA are 75-ohm coaxial Siemax
types, with one connector and cable for transmit (TX) and one for receive (RX).
The following cables can be used with the 2-Port and 4-Port Clear Channel T3/E3 SPA. The cables have BNC
connectors on one end and the Siemax connectors on the other. If similar SPAs are connected back-to-back,
both ends of cable will be Siemax.
• CAB-T3E3-RF-BNC-M (T3 or E3 Cable, 1.0/2.3 RF to BNC-Male, 10 feet)
• CAB-T3E3-RF-BNC-F (T3 or E3 Cable, 1.0/2.3 RF to BNC-Female, 10 feet)
• CAB-T3E3-RF-OPEN (T3 or E3 Cable, 1.0/2.3 RF to BNC-Open end, 10 feet)
The Cisco cable part numbers are 72-4124-01 (with male BNC end) and 72-4131-01 (with female BNC end).
Note
The 2-Port and 4-Port Clear Channel T3/E3 SPA Faceplate figure shows the connectors on the 2-Port and
4-Port Clear Channel T3/E3 SPA, and the following table describes the signal descriptions for these connectors.
Table 20: 2-Port and 4-Port Clear Channel T3/E3 SPA Connectors
MeaningConnector Label
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 BNC connector.
TX
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 BNC connector.
RX
4-Port Channelized T3 to DS0 Overview
The following sections describe the 4-Port Channelized T3 SPA:
4-Port Channelized T3 to DS0 LEDs
The 4-Port Channelized T3 to DS0 has three types of LEDs. There are two LEDs for each port on the SPA,
and one STATUS LED. The following figure shows an example of these LEDs on a 4-Port Channelized T3
to DS0.
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
31
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
2-Port and 4-Port Clear Channel T3/E3 SPA Cables and Connectors
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