DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Additional Maintenance Procedures
6-40Automatic Transmission Measurement System (ATMS)
6
!
CAUTION:
If there is an alarm or problem suspected on the Tape or Disk Circuit packs
do not save translations or announcements to the affected device. If there is
an alarm or problem suspected with the Host Adapter circuit, do not save
data to either MSS device. Saving data under these circumstances can
destroy good copies of the file. If necessary, obtain a spare tape cartridge
to save data.
To remove power to the cabinet:
1. If the cabinet is the PPN, execute
save translation
and
save
announcement
unless a tape drive problem is active.
2. Set the Emergency Transfer switch(es) in the affected cabinet to ON. In
the PPN these are located on the SYSAM circuit pack(s). Set both in a
system with duplicated SPE. In an EPN the switch is located on the EPN
Maintenance circuit pack. This locks the system in the emergency transfer
mode until the trouble is cleared.
3. Depending on which type of cabinet you are powering down, do one of
the following:
■ In an AC-Powered multi-carrier cabinet, set the circuit breaker to
OFF at the Power Distribution Unit.
■ In a DC-Powered multi-carrier cabinet, turn off the DC Power
supply.
■ In an AC-Powered single-carrier cabinet stack, turn off the power in
each affected carrier individually. The ON/OFF switch is located at
the back of the carrier behind the WP-91153 Power Unit.
■ In a DC-Powered single-carrier cabinet stack, turn off the power in
each affected carrier individually. The ON/OFF switch is located at
the back of the carrier behind the 676B Power Unit.
4. Power is restored by reversing the action taken above.
When restoring power to a PPN, the system will reboot. When restoring
power to an EPN, the EPN will under go a restart. This process is
described under EXP-PN in
Chapter 9, ‘‘ABRI-PORT (ASAI ISDN-BRI
Port)’’.
If a powered down carrier contains a 676B Power Unit, the 676B must
have been powered down for at least 10 seconds for the unit to restart.
Automatic Transmission Measurement
System (ATMS)
The ATMS performs transmission tests on analog trunks to determine whether
they are performing satisfactorily. The switch automatically originates test calls
from an Originating Test Line (OTL), over the trunks to be tested, to a Terminating
