Event Of The Cobranet Unit - Bosch Praesideo Service Manual

Praesideo| Service manual | Chapter
Flash Card Missing
Description:
Fault finding:
Pre-recorded Messages Names
Description:
Fault finding:

Event of the CobraNet unit

9.1.5
Cobranet interface with fault code number
Description:
Extra information:
Error code 255
Fault finding:
Bosch Security Systems | 2004-28 | 3922 880 62312
Logs the absence of the flashcard
Software version 1.1 always generates a flash card missing error,
even when no messages are used. This fault can be acknowledged
and reset.
Open the Network controller and look if there is a Flash card on the
main PCB.
If there is a flash card installed, re-connected it or replace it by
another flash card of which you know that it's working.
Logs the mismatch of the configured and detected messages in the
flashcard
Check via the file transfer application the names of the messages
are the same as filled in the configuration file.
Be aware of capital letters, points and underscore
Remove via the file transfer application the messages (delete them if
possible) and replace from your PC the original messages.
Internal fault in the LBB4404/00 CobraNet Interface or
CobraNet network fault. Most probable faults are network
faults, such as receive and transmit faults due to
collisions, excessive network delay or broadcast traffic
and exhausted network bandwidth. Other faults could be
related to configuration faults.
Audio mute error.
This event occurs when the audio is muted???
Waarom??
Check the following:
Do not connect the CobraNet interface to Ethernet via a
hub; use (managed) Ethernet switches only. Repeater
networks are a cause of collisions.
Take care of maximum Ethernet cable lengths and check
the Ethernet connections.
Make sure that the Ethernet network does not contain
loops.
If the Ethernet network is also used for computer data,
configure a high priority on the switch for the port that is
used for CobraNet.
Check whether bundle and channel numbers are properly
assigned and at least one CobraNet device has a
conductor priority unequal to 0.
Check whether not more than one transmitter is using a
certain bundle number.
Disconnect other devices connected on the network
(temporarily) to see if these cause errors by transmitting
corrupt packets.
For specialists only: the fault code is a reference to the
CobraNet fault description, which can be found in the
Error Code Reference part of the CobraNet Technical
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