Digital Monitoring Products XR2500F Installation Guide
8
IntRoduCtIon
LX-Bus™ Operation

6.1 Description

TheXR2500FCommandProcessor™panelsupportsLX-Busoperationdirectlyfromthepanel.EachLX-Bus
circuitprovides100additionalzones.UseJ22LX-BusHeaderfortherst100zones.Usetheinstalled481
ZoneExpansionInterfaceCardforthenext100zones.Thisprovidesatotalof200expansionzones.To
installuptofouradditionalInterfaceCardsuseaModel461InterfaceAdaptorCard.

6.2 XR2500F On-board LX-Bus

ToenableJ22tooperateasanLX-Bus,placeajumperonthetwopinsnexttotheletter“L”ontheJ23
6-Pinheader.WhenusingJ22asanLX-Bus,connectaDMPModel3004-wireHarnesstotheJ224-pin
headerlabeledLX-BUS.Thisprovidestherst100LX-Buszonesnumbered500-599.Respectwirecolors
whenconnectingdevicesanduseallfourwires.ResetthepanelusingtheJ16jumpertoactivateLX-Bus
operation.SeeConnectingLX-BusandKeypadDevicessectionformaximumwiringdistances.
Note:DoNOTuseshieldedwirewhenusingtheLX-Bus.DoNOTconnectthewiresfromthe4-wireharness
to the panel terminals.

6.3 LX-Bus 481 Zone Expansion Interface Card

The481ZoneExpansionInterfaceCardprovidesanadditional100zonestotheXR2500F.Whenusedin
conjunctionwiththeon-boardJ22LX-Busthe481LX-Buszonesarenumbered600to699.

6.4 Installing the 481 Card

Remove AC and battery power from the XR2500F panel and ground yourself before handling and
installing the 481 Card.
1.Alignthe481Card50pinconnectorwiththeXR2500FpanelJ6connector.
2.Pressthe481ontotheJ6connectorwhileapplyingevenpressuretobothsides.
B
J6 Interface Card
Connector
18 19 20 21 22 23 24 25 26 27 28
Z5 Z6 Z7 Z8 Z9+ Z9- Z10+ Z10-
GND
GND
481 Zone
Expansion
Interface
Card
Red—Auxiliary Power
Yellow—Data In
Green—Data Out
Black—Ground
Zone Expansion
Harness Connectors
To LX-Bus Modules
Command Processor
Panel
Figure 6: 481 Wiring