4-Port Serial Interface Spa Overview; 4-Port Serial Interface Spa Leds - Cisco ASR1004 - ASR 1004 Modular Expansion Base Hardware Installation Manual

Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs
Figure 3-38
descriptions for these connectors.
Table 3-36
Connector Label
TX
RX

4-Port Serial Interface SPA Overview

The following sections describe the 4-Port Serial Interface SPA:
•
•
•

4-Port Serial Interface SPA LEDs

The 4-Port Serial Interface SPA has three types of LEDs: two LEDs for each port on the SPA, and one
STATUS LED, as shown in
Figure 3-39
1
2
OL-14126-12
shows the connectors on the 4-Port Channelized T3 SPA, and
2-Port and 4-Port Channelized T3 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.
4-Port Serial Interface SPA LEDs, page 3-59
4-Port Serial Interface SPA Interface Specifications, page 3-60
4-Port Serial Interface SPA Cables, Connectors, and Pinouts, page 3-61
Figure
4-Port Serial Interface SPA Faceplate
1 2
ACTIVE LED
CD/LB (Carrier Detect/Loopback) LED
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
3-39.
3
STATUS LED
4-Port Serial Interface SPA Overview
Table 3-36 provides the signal
3
SPA-4XT-SERIAL
3-59