NDA-24300 CHAPTER 7
Page 511
Issue 1
ROUTINE MAINTENANCE PROCEDURE
USER NAME
SIGNATURE OF
SUPERVISOR
WORK TIME
(FROM - )
Name of User (Company) Date: Maintenance
Classification
Routine/Non-
routine
Control No. Maintenance
Company
Name of Equipment Room Temperature - °C
°F & humidity %
Name of Worker
Reference
Section
Item Detail Check Reference
Section
Item Detail Check
2.1 Check of Ambient
Conditions in the
Switch Room
Ambient
Temperature
2.9 Trunk RGU Check SND Trunk
Relative humidity DCF Function
2.2 Alarm Check TOPU Tone
2.3 MAT/Printer Check MAT MAT
Printer 2.10 ATTCON Check Ringing Signal
2.4 Collection of
System Messages
Related to Fault 2.11 System Check
Result of Routine
Diagnosis
CPU
2.5 Display of Locked-
out Station
Locked out
Stations
TSW
2.6 Fan Unit Check
PM
2.7 Alarm Tests TOPU
2.8 Main Power
System Check
Rectifier
Battery
2.9 Trunk RGU Check C.O. Trunk
Tie Trunk
ORT
IRT
Co
ndition And Caus
e
Procedure and Parts Used