3-55
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-12
Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs
2-Port and 4-Port Clear Channel T3/E3 Serial SPA Overview
2-Port and 4-Port Clear Channel T3/E3 Serial SPA Overview
The following sections describe the 2-Port and 4-Port Clear Channel T3/E3 SPA:
• 2-Port and 4-Port Clear Channel T3/E3 SPA LEDs, page 3-55
• 2-Port and 4-Port Clear Channel T3/E3 SPA Interface Specifications, page 3-56
• 2-Port and 4-Port Clear Channel T3/E3 SPA Cables and Connectors, page 3-56
2-Port and 4-Port Clear Channel T3/E3 SPA LEDs
The 2-Port and 4-Port Clear Channel T3/E3 SPA has three types of LEDs: two LEDs for each port on
the SPA, and one STATUS LED, as shown in Figure 3-37.
Figure 3-37 4-Port Clear Channel T3/E3 Serial SPA Faceplate
RX overload OC-192 SR-1: –1 dBm
OC-192 IR-2: +2 dBm
OC-192 LR-2: –7.0 dBm
Maximum receiver power damage OC-192 SR-1: +5 dBm
OC-192 IR-2: +5 dBm
OC-192 LR-2: +5 dBm
Table 3-32 OC-192 Specifications (continued)
Specification Description
1 C/A (Carrier/Alarm) LED 4 RX (Receive) connector
2 A/L (Active/Loopback) LED 5 STATUS LED
3 TX (Transmit) connector
C/A
TX
RX
1
STATU S
SPA-4XT3/E3
0
A/L
C/A
TX
RX
A/L
C/A
TX
RX
2
A/L
C/A
TX
RX
3
A/L
1
2
3 4 5
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