Installation guide
1-15
Cisco ONS 15530 Hardware Installation Guide
OL-7706-01
Chapter 1 Cisco ONS 15530 Overview
Cisco ONS 15530 Components
Figure 1-12 OSC Module
OSC Module LEDs
Table 1-5 lists the LEDs on the OSC module faceplate, their default conditions, and what the conditions
indicate.
PSMs
The PSM (protection switch module) provides trunk fiber protection for Cisco ONS 15530 systems
configured in point-to-point topologies. The PSM sends the signal from an OADM module, an ITU trunk
card, or a transponder line card to both the west and east directions. It receives both the west and east signals
and sends to the OADM module, ITU trunk card, or transponder line card. Both nodes in the network topology
must have the same shelf configuration.When a trunk fiber cut occurs on the active path, the PSM switches
the received signal to the standby path. Because the PSM occupies one of the OADM subslots in the shelf, it
protects a maximum of four channels and the OSC in a single shelf configuration.
The PSM also has an optical monitor port for testing the west and east receive signals. This port samples
one percent of these signals, which can be monitored with an optical power meter or an optical spectrum
analyzer.
A PSM can be installed in subslots 0/0 and 0/1 of the Cisco ONS 15530 chassis.
1 Card status LED 4 Transmit LED
2 OADM port 5 Card handle
3 Receive LED
STATUS
TX
RX
77667
T
X
R
X
15530-OSCM
1
3
5
4
2
Table 1-5 OSC Module LEDs
LED Status Description
STATUS Green OSC module initialization process is complete.
Yellow OSC module is in initialization process.
TX Green Transmit laser is enabled.
RX Green Light reception exists at wave OSC interface.