Verilink M1-3 (880-503136-001) Product Manual - Manual (Page 51)

Performance Monitoring
Verilink M1-3 User Manual 4-3
System LED The System LED displays node communication conditions. For
example, the system LED can also turn red for a loss of clock
condition, activating a critical alarm.
Table 4-3 provides a
description of the System LED states:
Table 4-3 System LED Indicator
M1-3 Alarms
The SCM polls the various modules for alarms. If alarm reporting is
enabled for the node and for the M1-3, the SCM retrieves and sends
the alarm to the Craft interface, Node Manager, or an SNMP agent.
Alarms can be automatically sent to a specified printer by setting
up the printer address in the SCM management utilities menus.
Alarm
Indications
The alarm list displays the following:
• Whenever the system powers up and any module performs a
self-test
• Power supply input is lost
• A default or user-designated threshold is exceeded
• A Yellow Alarm is received from the network (DS1)
• An unframed all-ones or alarm indication signal (AIS) is
received from the network (DS1)
• There is a loss of signal (LOS) or loss of frame (LOF) (DS1/DS3)
• A loopback is present
• A module fails
• A module is removed from the shelf
Alarm
Information
The SCM alarm listing displays the following information about the
alarms.
Figure 4-2 shows an example of an M1-3 alarm report.
Status Code The Status Code column displays a decimal code on an ASCII
terminal.
State Color Alarm Class Error Condition
Solid Green None M1-3 module is okay.
Solid Red Critical System failure—Check the performance status or alarm status screens.
Off None None M1-3 module has no power.