Filter
Top Products
Chapter 2 - Hardware Description and Installation
2-5
Active Alarms
To access the Active Alarms, select the first option from the MGC-25 Main
menu.
If there are no active alarms, selecting the Active Alarms option shows the
System Idle display.
To scroll vertically through the Active Alarms, press the right ( ) button to
highlight the scroll bar and then use the up/down ( / ) buttons to scroll.
The possible alarms are described in Table 2-1:
Table 2-1: Alarms Shown in the LCD Display Window
Alarm Type Description
System
Errors
Major/Minor Alarm
The system has an error. To view details about the error: in the
MGC Manager, right-click the MCU icon, and then click Faults.
For details about Faults, see the MGC Administrator’s Guide,
Chapter 5.
PRI Errors R - Red Alarm
No connection is detected. There are no physical or higher layer
protocols established. The line cannot be used for service when
a red alarm is detected. Check the network cable.
Y - Yellow Alarm
The system is receiving a “Far End Alarm Failure.” This failure
indicates that layer 1 and layer 2 protocols have been
established but the layer 3 protocol is not yet established. The
line cannot be used for service when a yellow alarm is detected.
Check the network cable and contact your service provider.
N - Normal
D - D Channel not established.
Check the network cable and contact your service provider.
LAN Errors L - Link Down - There is no signal from the network.
N - Normal