Bosch LTC 8555/00, Instruction Manual

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Allegiant Keyboards Troubleshooting | en 31
Bosch Security Systems, Inc. Instruction Manual F.01U.127.290 | 2.0 | 2009.03
9.2 Local Keyboard Test -- Keyboard User Function 1
Keyboard User Function 1 is an Allegiant system keyboard feature used to verify that all the
keyboard’s LEDs and switches are in working order. This function also automatically
calibrates the center position of the analog joystick. Upon starting this test, the keyboard
emits a short beep and all LEDs light for about two seconds. During this time, note any LED
failures.
Each key may be pressed to display a unique code number associated with that key. Follow
the table below to ensure that the keyboard is properly processing all keys. The amount of
deflection of the Joystick during pan/tilt actions is indicated by a speed indicator value in the
first digit position of the LED display. Rotation of the Zoom control indicates a value of x41
when rotated clockwise, and x40 when rotated counterclockwise. Push USER last, as this
exits the keyboard test mode.
If the login system features have been selected by the system installer, the same local test can
be initiated while the keyboard is not online, by pressing “*” (the star key).
Camera and Monitor numbers being
displayed, but Allegiant systems will not
respond to changes or PTZ controls
– Verify that the attempted function is applicable to the device
being controlled, or the switcher’s current situation.
– If using a directly connected cable, the keyboard port or
keyboard could be defective. Swap the suspect keyboard with a
known good keyboard.
– If using a communication link other than a directly connected
cable, there could be a problem with the communication link.
Data is being received from the Allegiant if camera and monitor
numbers are displayed, but these symptoms indicate that the
keyboard’s data is not getting back to the Allegiant. Test with a
directly connected Allegiant keyboard cable. Verify that the
communication link is compatible with Allegiant keyboard data
communications.
Intermittent beeping and/or display of error
message 90, 92, 94 or 95
– Error 90, Error 92, and Error 94 indicate the Allegiant system
has received invalid data. The most likely cause is excessive EMI
interference on the keyboard data cable, within the keyboard
itself, or possibly in the Allegiant system. If the keyboard is
remoted a long distance, try using the 3 m (10 ft) data cable
supplied with the keyboard.
– Error 95 indicates that there is intermittent keyboard
communication. Verify the physical data cable connections and
the integrity of the cable connectors.
Problem Possible Causes