Chapter 3
Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs
Figure 3-37
describes the signal descriptions for these connectors.
Table 3-34
Connector Label
TX
RX
2-Port and 4-Port Channelized T3 Serial SPA Overview
The following sections describe the 2-Port and 4-Port Channelized T3 SPA:
•
•
•
2-Port and 4-Port Channelized T3 SPA LEDs
The 2-Port and 4-Port Channelized T3 SPA has three types of LEDs: two LEDs for each port on the SPA
and one STATUS LED, as shown in
Figure 3-38
1
2
3
OL-14126-12
shows the connectors on the 4-Port Clear Channel T3/E3 Serial SPA, and
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 Siemax 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 Siemax connector.
2-Port and 4-Port Channelized T3 SPA LEDs, page 3-57
2-Port and 4-Port Channelized T3 SPA Interface Specifications, page 3-58
2-Port and 4-Port Channelized T3 SPA Cables and Connectors, page 3-58
4-Port Channelized T3 SPA Faceplate
2
1
3
4
C/A (Carrier/Alarm) LED
A/L (Active/Loopback) LED
TX (Transmit) connector
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
2-Port and 4-Port Channelized T3 Serial SPA Overview
Figure
3-38.
4
RX (Receive) connector
5
STATUS LED
Table 3-34
SPA-4XCT3/DS0
5
3-57