System Alarms - Nortel 1000E Maintenance Manual

Page 48 of 162 Hardware maintenance tools

System alarms

553-3041-500 Standard 1.00
• 100Mbps – Green LED indicates the Ethernet Port 0 or Port 1 is running
at 100Mbps. Off indicates 10Mbps.
• U1 and U2 are not used.
Figure 11
Signaling Server LEDs
Floppy drive
CDROM
CDROM LED - Green indicates activity on the CDROM
Banner Label on Server
Power Status
Major and minor alarms can be displayed on the attendant console when
connected to the system.
Note: Attendant consoles cannot be connected to an MG 1000T and
therefore cannot display MG 1000T alarms.
Major alarms
A major alarm indicates a fault which seriously interferes with call
processing. The causes of major alarms are listed in Table 7 on
When an MG 1000E is equipped with a power fail transfer unit (PFTU), a
major alarm causes designated analog (500/2500-type) telephones to connect
directly to Central Office trunks. This is called a line transfer.
September 2004
Floppy LED - Green indicates activity on the floppy
Port 1
Drive Link 100Mbps Link 100Mbps U1
Port 2
page
U2
49.