2-Port And 4-Port Channelized T3 Spa Interface Specifications; 2-Port And 4-Port Channelized T3 Spa Cables And Connectors; Table 2-5 2-Port And 4-Port Channelized T3 Spa Leds - Cisco 12000 - Series Chassis Modular Expansion Base Hardware Installation Manual

Chapter 2 Overview: Cisco 12000 Series Router Shared Port Adapters
The 2-Port and 4-Port Channelized T3 SPA LEDs are described in
Table 2-5
LED Label
C/A
A/L
STATUS

2-Port and 4-Port Channelized T3 SPA Interface Specifications

The framer processes incoming and outgoing T3 frames (cbit, m13/m23, and unframe). The framer
operates at T3 line rates (44.2 Mbps).
Packet data is transported with a user-configurable encapsulation (such as Point-to-Point Protocol [PPP]
or High-Level Data Link Control [HDLC]), and is mapped to T3 frames. The encapsulations add
transport overhead to the packet of data frames before transporting, and are stripped when a packet is
transported to the far end.
The T3 SPA interface is compliant with ANSI and Telco standards. The interface also provides support
for Management Information Base (MIB) RFC 2495, RFC 2496, and T1.231.

2-Port and 4-Port Channelized T3 SPA Cables and Connectors

The interface connectors on the 2-Port and 4-Port Channelized T3 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 Channelized T3 SPA. The cables have BNC
connectors on one end and the Siemax connectors on the other.
•
•
•
The Cisco cable part numbers are 72-4124-01 (with Male BNC end) and 72-4131-01 (with Female BNC
Note
end).
Figure 2-2
provides the signal descriptions for these connectors.
Release 12.0(32)SY1, OL-8831-01, Rev. G6, July 19, 2007
2-Port and 4-Port Channelized T3 SPA LEDs
Color
Off
Green
Amber
Off
Green
Amber
Off
Green
Amber
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)
shows the Siemax connectors on the 2-Port and 4-Port Channelized T3 SPA, and
State Meaning
Off Port is not enabled by software.
On Port is enabled by software, and there is a valid T3 signal
without any alarms.
On Port is enabled by software, and there is at least one alarm.
Off Port is not enabled by software.
On Port is enabled by software, loopback is off.
On Port is enabled by software, loopback is on.
Off SPA power is off.
On SPA is ready and operational.
On SPA power is on and good, and SPA is being configured.
Cisco 12000 Series Router SIP and SPA Hardware Installation Guide
2-Port and 4-Port Channelized T3 to DS0 SPA Overview
Table 2-5.
Table 2-6
2-7