Cisco ASR-1000-SIP10, Руководство по установке оборудования, Страница: 28 / 102

3-6
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-03
Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers Shared Port Adapters
4-Port Serial Interface SPA Overview
4-Port Serial Interface SPA Overview
The following sections describe the 4-Port Serial Interface SPA:
•
4-Port Serial Interface SPA LEDs, page 3-6
•
4-Port Serial Interface SPA Interface Specifications, page 3-7
•
4-Port Serial Interface SPA Cables, Connectors, and Pinouts, page 3-8
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 3-3 .
Figure 3-3 4-Port Serial Interface SPA Faceplate
Table 3-5 describes the 4-Port Serial Interface SPA LEDs.
Table 3-4 2-Port and 4-Port Channelized T3 Serial 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/
LB
3
AC
TIVE
CD/ LB
2
ACT
IV
E
CD/
LB
ACT
IV
E
CD
/ L
B
ST
AT
US
SPA-4XT-SERIAL
250158
1 2 3
1
ACTIVE LED
3
STATUS LED
2
CD/LB (Carrier Detect / Loopback) LED
Table 3-5 4-Port Serial Interface LEDs
LED Label Color State Function
ACTIVE Off Off The SPA port is not enabled by the
field-programmable gate array (FPGA).
The SPA port does not have any frame activity
on RX/TX Layer 1.