Digital Monitoring Products Inc PC0128 User Manual

This section provides troubleshooting information for use when installing or servicing an XT30/XT50 system.

Keypad displays “SYSTEM TROUBLE”

J16 Jumper is installed.

Remove the J16 reset jumper.

Open or short on the green data wire to

the keypad.

Check for broken or shorted wires between

the panel and the keypad.

Bad keypad or zone expander is affecting

the Green data wire.

Replace keypad or zone expander.

Keypad keyboard is not functional. 

When a key is pressed, only a short

beep is emitted.

Open or short on the yellow data wire to

the keypad.

Check for broken or shorted wires between

the panel and the keypad.

Bad keypad or zone expander. is affecting

the Yellow data wire.

Replace keypad or zone expander.

Keypad XMIT Green LED is off

Panel is reset.

Remove J16 jumper.

Flash Load enabled.

Remove J18 jumper and reset panel.

Keypad RCV Yellow LED is off

Keypad/expanders are not connected to panel. Connect keypad/expanders.
Keypad/expanders are greater than five.

Check keypad/expanders address.

Keypad beeps when keys are pressed,

but will not allow the user to arm or

disarm, or enter the User Menu.

Two or more keypads are assigned to the

same address.

Set each keypad on the system to a unique

address.

Power LED is off.

AC/Battery is not connected.

Connect AC power and/or battery.

Overcurrent OVC LED turns Red

Too many devices attached to auxiliary.

Maximum current draw is 500 mA.

Wireless Green TX LED is off.

Wireless House Code is not programmed.

Program House Code in System Options.

Wireless Yellow RX LED never flashes.

Transmitters are not getting through to

receiver.

Check transmitter serial numbers.
Move transmitter closer.
If XT30, replace 1100 series receiver.

Wireless Green TX and Yellow RX

LEDs are both on steady

Panel is reset.

Remove J16 jumper.

Flash Load enabled

Remove J18 jumper and reset panel.

Keypad operates intermittently, 

keystrokes may be missed, or display 

does not update consistently.

Wire length may exceed maximum,

resulting in poor data performance.

Wire length can be reduced or a heavier

gauge used.
A power supply can be added near the keypad.

Aee LT-2031, LX-Bus/Keypad Bus Wiring

Application Note for more information.

Listed below are several keypad messages you may see on the display. Follow the instructions in the Possible

Solutions column to correct the problem.

INVALID CODE

The user code entered is not recognized by the system. Check the user code and try again.

CLOSING TIME

The system was not armed at its scheduled closing

time. 

Users still on the premise should arm the system or

extend the schedule to a later time.

AC TROUBLE

The system is not getting proper AC power.

Check that the AC connections are good from the

transformer.

BATTERY TROUBLE

The battery is either low or missing.

Check to see that battery and connections are good.

SYSTEM BUSY

The system is performing another task with a

higher priority or is being Remote Programmed.

Wait a few moments for the system to complete the

task. Make sure the J16 jumper is not on the panel. If

the message displays for several minutes, the keypad

is not receiving polling from the panel.

TRANSMIT FAIL

The panel has attempted to communicate with

the central station multiple times and has not

succeeded.

Verify your communication type, account number,

and phone number. Make sure the telephone line is

connected and working properly.