Troubleshooting guide

You've just told the panel which LX-Bus you want to test. The keypad now displays

[ ADDRESS:- ].

To test address ‘00’ on the selected LX-Bus™, simply press COMMAND. To test only a

particular device, enter the 2-digit LX-Bus device address and press COMMAND.

TECH NOTE: Enter only the address to which the zone expander has been set, and here's

why: You are testing the EXPANDERS on the LX-Bus, not the individual zones. Refer to the

example at the end of the following ‘How it Works’ section for more information.

During the test, [ TESTING . . . STOP ] displays on the keypad. At any time, you can press

the Select key below STOP to end the test.

During the test, the panel records the number of responses from the device. If all polls are

received back by the panel correctly, the keypad displays [ 0/65535 FAIL ] (read this as

"zero failures out of 65535 polling attempts") when STOP is selected.

Press the Back Arrow key to enter a new device address or press COMMAND to exit TEST

LX-BUS.

-How it Works-

When the panel polls the addressed LX-Bus device, the device is recognized as a multi-zone

device. The panel does not poll the remaining zones on the device.

The expander internally polls the remaining zones and transmits any status changes to the

panel. This greatly reduces the amount of time it takes the panel to poll all LX-Bus devices.

TECH NOTE: At the [TESTING . . . STOP] display, the longer you wait before you select

STOP, the more polling attempts the panel is able to make. The number used above

(65535) is the highest possible number of polling attempts.

If one or more polling attempts fail, the keypad displays [ * * * * */65535 FAIL ] with the *

representing the number of failed polling attempts.

A display of 65535/65535 FAIL indicates a problem with the Interface Card or its LX-Bus

wiring, such as a bad or broken wire, a wire harness not properly connected, or excessive

noise or distance.

It can also mean that a zone number was entered that did not match a device address.

Example: You have a four-zone expander on LX-Bus #1 that is address 00.

The first zone on the expander is Zone 1

00. When you try to make the panel poll address

01, the panel isn't looking for address 00. The result is 65535/65535 FAIL.

-NOTES-

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