Siemens OPTIPOINT 500 - Manual (Page 105)

P31003-E8400-A100-3-7620
Service Manual
8-1
Troubleshooting
Test Loops 3 and 4
8 Troubleshooting
The telephone tests for optiPoint 500 are described in Section 3.6.
Troubleshooting for optiPoint 500 can be carried out on site by replacing the faulty equipment
or with the appropriate spare parts.
8.1 Test Loops 3 and 4
Hicom/HiPath provide diagnostic modes that are supported by the telephone (test loops 3 and
4).
8.2 Reboot
The first time the telephone is turned on or is reset by the local firmware, this reboot is repre-
sented visually as follows:
●
All LEDs on the telephone are activated for 20 ms (+/- 5 ms).
● All LEDs on connected key modules are activated for 20 ms (+/- 5 ms).
● All pixels on the screen are activated for one second.
These procedures show that the telephone was rebooted and has completed its self-test pro-
cedures.
They do not indicate that communication has been established with the Hicom/HiPath.
After communication has been established with Hicom/HiPath, the Hicom/HiPath controls the
screen and LEDs (excluding entry), thus showing the user that the telephone is ready for op-
eration.
smartlink
CPU
U
P0/E
Test loop 3
Test loop 4
optiPoint 500
Test Loops
optiPoint 500 telephones
support ISDN test loops 3
and 4 to the
line card