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© 2017 Digital Monitoring Products, Inc.
LT-1687 17333
Retrieve the LX-Bus Status
This function allows the panel to poll all devices connected to the LX-Bus of an interface card and check for
any overlapped, missing, or extra addresses. To retrieve the system’s LX-Bus status using the Diagnostics
function, follow these steps:
1. Reset the panel.
2. Enter the Diagnostics code 2313 (DIAG) and press CMD.
3. Press CMD until LX-BUS STATUS displays and press any select key or area.
4. When OVLP MIS EXT displays, choose the type of status test you would like to run. See the definitions
below for more information.
Overlap (OVLP)
An overlap occurs when one device address is the same as any of the last three zones on another 714 or 715.
The overlap feature cannot determine when two devices have the same address.
Example: Model 714 Address 00 = Zones 500 501 502 503, and the Model 711 Address 02 = Zone 502.
Zone 502 would report as an overlap because both the 714 and 711 have devices set to 502.
Missing (MIS)
A missing occurs when a zone between 500 and 999 has been programmed in ZONE INFORMATION and
no device with that zone address has been installed on the LX-Bus. To correct the problem, check your zone
programming and zone expansion module addressing.
Extra (EXT)
A device is extra if it is installed on the LX-Bus, but none of its zones are programmed into the system.