2-Port And 4-Port Channelized T3 To Ds0 Spa Overview; 2-Port And 4-Port Channelized T3 Spa Leds - Cisco 12000 - Series Chassis Modular Expansion Base Hardware Installation Manual

2-Port and 4-Port Channelized T3 to DS0 SPA Overview

Table 2-4
Connector Label
TX
RX

2-Port and 4-Port Channelized T3 to DS0 SPA Overview

The following sections describe the 2-Port and 4-Port Channelized T3 SPA:
•
•
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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.
T3 SPA.
Figure 2-2
1
2
3
Cisco 12000 Series Router SIP and SPA Hardware Installation Guide
2-6
2-Port and 4-Port Clear Channel T3/E3 SPA Connectors
Meaning
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.
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.
2-Port and 4-Port Channelized T3 SPA LEDs, page 2-6
2-Port and 4-Port Channelized T3 SPA Interface Specifications, page 2-7
2-Port and 4-Port Channelized T3 SPA Cables and Connectors, page 2-7
4-Port Channelized T3 SPA Faceplate
2
1
3 4
C/A (Carrier/Alarm) LED
A/L (Active Loopback) LED
TX (Transmit) connector
Chapter 2 Overview: Cisco 12000 Series Router Shared Port Adapters
Figure 2-2 shows an example of these LEDs on a 4-Port Channelized
4 RX (Receive) connector
5 STATUS LED
Release 12.0(32)SY1, OL-8831-01, Rev. G6, July 19, 2007
SPA-4XCT3/DS0
5