Power Amplifiers; Pam: Display Shows Only "Philips Csi" ("Bosch" In 2.0 Software); Pam: Display Shows No Information; Pam: Display Shows "No Network - Bosch Praesideo Service Manual

Praesideo| Service manual | Chapter
Correct the time and date via the rotary switch on the front of the unit.
8.6

Power Amplifiers

8.6.1 PAM: Display shows Standby:
The unit is not recognized in the Configuration software.
•
Check the serial number in the configuration.
•
Check if the unit is enabled in the configuration.
•
See chapter 8.4.2
8.6.2

PAM: Display shows no information:

•
When this occurred after equipment down load (unit software upgrade) the download may have
failed. Connect only that unit to the NCO and restart the equipment download. (See chapter 8.4.2)
•
If the amplifier works correct, the display might be broken. Send the unit for repair.
8.6.3

PAM: Display shows "No Network":

This message is shown when this unit doesn't get information from the NCO.
•
Check if the NCO is switched on.
•
Check the POF cables connected to this unit. (See also chapter 9.5.2)
8.6.4

PAM: Display in Standby:

The text "Standby" in the power amplifiers display can be caused by several situations;
•
When the software does not recognize a power amplifier. To solve this, check the configuration
software if that power amplifier configured and enabled.
•
When a power amplifier doesn't start up, it could be that there is a communication problem caused
by the POF cabling. When you have a large system, which is near or over the POF cable limitations,
starting up the system in power amplifier groups could solve the problem.
Example; you have 20 Power amplifiers, 10 amplifiers are switched on and 10 off.
1. Switch on the NCO and therewith start up the first 10 power amplifiers.
2. Switch on the other 10 power amplifiers with the mains switch.
See also chapter 9.5.4 Communication stability check for more information.
•
When a unit is defect. You could see the type of defect of that unit in the diagnose page.
8.7

Call station

8.7.1

All LED's on

When all LED's on a call station are on, the software download could be failed. This problem could occur
when the call station lost communication during a software upgrade.
•
Check in the undefined page in the Configuration and diagnostics software under "upgrade unit
software". If the call station is recognized here than upgrade the unit. If this doesn't help it needs to
be repaired.
When the Call station is powered and the extension is removed, the Call station can get defect. The symptoms
are than: all LED's on, unit not recognized by the system (unit can not be found in upgrade unit software
page)
8.8

Communication

8.8.1

POF Cable check

A simple way to check a POF cable is using a fiber interface or a network splitter.
•
Connected the to be checked cable to a network Controller and the fiber interface / network splitter.
It's advisable to connect an extra cable with a cable coupler LBB4419 for extra signal attenuation.
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