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Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
OL-17438-04
Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters
1-Port Channelized STM-16/OC-48 SPA Overview
Figure 2-22
1-Port Channelized STM-16/OC-48 SPA Faceplate
The 1-Port Channelized STM-16/OC-48 SPA LEDs are described in
1-Port Channelized STM-16/OC-48 SPA Interface Specifications
The framer processes incoming and outgoing SONET or SDH frames. The framer operates at
OC-48/STM-16 line rates (2.488 Gbps).
Packet data is transported with a user-configured encapsulation (such as Point-to-Point Protocol [PPP])
and is mapped into the STS-48/STM-16 frame.
The 1-Port Channelized STM-16/OC-48 SPA interface is compliant with RFC 1619,
PPP over
SONET/SDH
, and RFC 1662,
PPP in HDLC-like Framing
. The 1-Port Channelized STM-16/OC-48 SPA
also provides support for SNMP v1 agent (RFC 1155–1157), and Management Information Base (MIB)
II (RFC 1213).
1
C/A (Carrier/Alarm) LED
3
STATUS LED
2
A/L (Active Loopback) LED
S
PA-1XCHOC4
8
/D
S3
S
U
T
A
T
S
A
/
C
L
/
A
2
8
0920
2
3
1
Table 2-29
1-Port Channelized STM-16/OC-48 SPA LEDs
LED Label
Color
State
Meaning
C/A
Off
Off
Port is not enabled by software.
Green
On
Port is enabled by software, and there is a valid T3 signal
without any alarms.
Amber
On
Port is enabled by software, and there is at least one alarm.
A/L
Off
Off
Port is not enabled by software.
Green
On
Port is enabled by software, loopback is off.
Amber
On
Port is enabled by software, loopback is on.
STATUS
Off
Off
SPA power is off.
Green
On
SPA is ready and operational.
Amber
On
SPA power is on and good, and SPA is being configured.
