User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si 
555-230-123 
Issue 1
April 1997
Maintenance Commands and Trouble-Clearing Aids 
Page 8-518status system 
8
BUS 
ALARMS-MAJOR
This y(es) or n(o) field shows whether Major alarms exist for packet 
bus components.
BUS 
ALARMS-MINOR
This y(es) or n(o) field shows whether Minor alarms exist for packet 
bus components.
BUS FAULTS This field indicates the number of faulty bus leads, where a fault is 
defined as either shorted to another lead, stuck at some value or an 
open lead. This field may take on any integer between 0 and 24. 
The system displays a blank if the Maintenance/Test circuit pack is 
not present, if the Packet Bus port of the Maintenance/Test circuit 
pack has been taken out-of-service or if the system does not have 
the Packet Bus feature.
OPEN BUS 
LEADS
This field indicates the number of bus leads which tests indicate 
have an open circuit between the Maintenance/Test circuit pack 
and bus terminator. Bus leads test open as a result of physical 
damage to the backplane or its connectors OR because a bus 
terminator is missing. This field may contain values between 0 and 
24. The system displays a blank if the Maintenance/Test circuit 
pack is not present or has been take out-of-service, if the Packet 
Bus port of the Maintenance/Test circuit pack has been take 
out-of-service or if the system does not have the Packet Bus 
feature.
EMERGENCY 
TRANSFER
The location of the Processor or EPN Maintenance circuit pack 
containing the Emergency Transfer Select Switch is displayed. 
Valid locations are 1A and 1B for the PPN, and 2A or 3A for the 
EPNs.










