3-59
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
4-Port Serial Interface SPA Overview
Figure 3-38 shows the connectors on the 4-Port Channelized T3 SPA, and Table 3-36 provides the signal
descriptions for these connectors.
4-Port Serial Interface SPA Overview
The following sections describe the 4-Port Serial Interface SPA:
• 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
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.
Figure 3-39 4-Port Serial Interface SPA Faceplate
Table 3-36 2-Port and 4-Port Channelized T3 SPA Connectors
Connector Label Meaning
TX 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.
RX 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.
0
1
ACTIVE
CD/
L
B
3
AC
TIVE
CD
/ LB
2
ACTIV
E
CD
/
LB
A
CT
IV
E
C
D/
LB
S
T
AT
US
SPA-4XT-SERIAL
250158
1 2
3
1 ACTIVE LED 3 STATUS LED
2 CD/LB (Carrier Detect/Loopback) LED
To Next Page
Loading...
