112
Interface card sync led not illuminated / flashing
Possible cause:-
System initialising.
Solution:-
Please wait up to 3 minutes for system to start.
Possible cause:-
Power fault.
Solution:-
Check all power supply levels and connections.
Possible cause:-
External sync fault.
Solution:-
Check external sync connections on the rear of the rack.
Possible cause:-
Interface card fault.
Solution:-
If you have tried all of the above solutions without success then contact RTK for advice and
possible card replacement.
Card functions incorrectly
Possible cause:-
Card configuration downloaded to interface card in the system but changes have not yet
been distributed throughout the system.
Solution:-
Please wait up to 3 minutes for changes to be effected.
Unable to silence audible / horn on input card only system
Possible cause:-
Silence Pushbutton input not enabled.
Solution:-
Enable Silence Pushbutton global setting. Refer to configuration manual for more details.
Possible cause:-
Input cards not linked.
Solution:-
Silence function in an input card only system requires all input cards to be linked together
via the local network. Check that mother board switch settings between all input cards are
enabled. Refer to section “INTER CARD COMMUNICATIONS” for information.
Silence audible / horn on input card only system unresponsive
Possible cause:-
Silence pushbutton uses only input channel.
Solution:-
An input card only system using an input channel only for silence function can take several
seconds to silence the horn / audible. This delay can be removed if an additional silence
pushbutton contact is added, this extra contact should be normally open and connected to
the terminals marked M/S +ve and M/S –ve on the rear of the first rack.