Nortel Networks DCT1900 manual Individual User Complaint

Technical Product Manual - DCT1900

Maintenance, Fault Finding Procedures

COMMON USER

COMPLAINT

1) A malfunctioning Base Station can be detected by:

ytesting the Base Station with the Portable Telephone in the Service Display Mode (see Paragraph 3.8) or

ychecking the load of the Base Station by System Manager- Statistics-Display-Station-Station Load or

ychecking the operation of the Base Stations by System Manager-Statistics-Settings-View on Line

2)When going off hook on the Portable Telephone, the hook symbol on the display does not become stable and the Portable Telephone automatically goes on hook.

All Portables out of range?

No

Portables

of one area out

of range?

No

Complaints

come from same

area?

No

Blocked calls?

No

INDIVIDUAL USER

COMPLAINT

Yes

Yes

Yes

Yes

Green LED on all Boards on?

Yes

CPU

PSU of associated cabinet

Poor coverage of an area caused by lack of Base Stations, a malfunctioning Base Station or no air interface synchronization between adjacent systems

Lack of resources in Base Stations or SPUs

No

Check fuses at

power switch Check power source

Fuses and		Replace fuse or repair
power source	No
		power source
okay?

Yes

Replace Backplane

6-6	Maint-DCT1900/R8/mw
	© 2000-2005