Bosch Appliances 8555 manual Troubleshooting, Possible Causes

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LTC 8555 Series Instruction Manual Troubleshooting

EN 28

 

 

9TROUBLESHOOTING

9.1 General

PROBLEM

Possible Causes

 

 

 

No Power Indication

a)

If powered from a non-modular type Allegiant, try another

 

 

keyboard port on the Allegiant. The port may have failed.

 

b)

If powered from a modular type Allegiant, check the fuse on

 

 

main Allegiant power supply. Try another keyboard port.

 

c) If powered from a separate power source, check power

 

 

source or main AC supply of power source.

 

d)

If power source is confirmed to be OK, the keyboard may

 

 

have an internal failure. Swap suspect keyboard with a

 

 

known good keyboard.

 

 

 

LED Displaying flashing dashes

a)

If the login feature is enabled, the keyboard may be logged

 

 

off. (User LED lit and OFF LED lit)

 

b)

If the login feature is not enabled, or the keyboard port is

 

 

logged in, there is likely a data communication error. Test the

 

 

keyboard cable in another keyboard port. Swap the suspect

 

 

keyboard with a known good keyboard. Try another

 

 

keyboard data cable. Check keyboard data cable

 

 

connections.

 

c) If using RS-232 protocol models with a dial-up modem link,

 

 

the keyboard may be waiting for the operator to dial a phone

 

 

number and establish communication with the Allegiant.

 

 

 

Non-operating Key or LED digit

a)

If a key does not seem to be working, verify that the

 

 

attempted function is applicable to the device being

 

 

controlled, or the switcher’s current situation.

 

b)

Key or LED may be defective. Run the User Function 1 test

 

 

described in section below.

 

 

 

Camera and Monitor numbers being displayed, but

a)

Verify that the attempted function is applicable to the device

Allegiant system will not respond to changes or

 

being controlled, or the switcher’s current situation.

P/T/Z controls

b)

If using a directly connected cable, the keyboard port or

 

 

 

keyboard could be defective. Swap the suspect keyboard

 

 

with a known good keyboard.

 

c) 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

a)

Error 90, Error 92, and Error 94 indicate the Allegiant

90, 92, 94, or 95.

 

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.

 

b)

Error 95 indicates that there is intermittent keyboard

 

 

communication. Verify the physical data cable connections

 

 

and the integrity of the cable connectors.

 

 

 

Bosch Security Systems 29 August 2003

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Contents Page LTC 8555 Series Bosch Security Systems 29 August Important SafeguardsBosch Security Systems 29 August Icon Translator Chart A. and Canadian Models Only FCC & Ices InformationSafety Precautions Sécurité Key Value Local Keyboard Test Keyboard User FunctionPossible Causes TroubleshootingPrecauciones de Seguridad SicherheitshinweiseVeiligheidsmaatregelenSicurezza Allegiant Console Cable Pinouts part number LTC 8506/00 Keyboard 6-Pin Interface ConnectorFunction Description Access Level Error MessagesInstrukcji obsługi Medidas de Segurança Zasady BezpieczeństwaTable of Contents Keyboard User Functions Programming a SalvoSwitching Camera Sequence1st Line = Camera Ignore S0001 L0001 Service Centers ServiceUnpacking Keyboard ModelsDescription InstallationGeneral Maximum KeyboardsRun a Sequence Load/Clear a SequenceStop a Running Sequence Controlling the Direction of a Sequence9 Arm/disarm All Alarms 8 Arm/disarm Individual AlarmsAcknowledgement of Alarms 10 Arm/disarm MonitorLTC 8555/00, LTC 8555/01 RS-485 type Keyboards LTC 8555/00 and LTC 8555/01 Standard keyboard InstallationMax Distance LTC 8555/02, LTC 8555/03 RS-232 type KeyboardsTypical Configuration using supplied data/power cable Keyboard Operating Instructions Keyboard Login Procedure Keyboard Log Off ProcedureUser Information Keyboard Connection Type Keyboard Number GeneralBaud Allegiant System Command Scripts for RS-232 Model KeyboardsStop bits Data bits Parity None Handshake Keyboard interface connection typeKeyboard Controls Dip Switch Position Comment 10 ft data/ power cable supplied with keyboard Keyboard interface Connection type Command ScriptRS-232 Keyboard mode System must be configuredAdapter supplied with ForAllegiant side Modem Keyboard side Modem Configuration using LTC 8712 Series Console Port Expander

8555 specifications

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