2-15CR2032+Installing External Device ControlLithium Battery Installation" Installing External Device ControlDoor Lock control device can be connected to the TX-Z 2 824 system.1) Connect wires from Door Lock Control device to RL1/RL2 connector on the DHU-M1 PCB.The remote control terminal on the External device also be connected to these contacts.(See Program056: Relay Contact Assignment)The system is composed by two relays, every one of each having a normally opened contact." Lithium Battery InstallationLocate and remove the lithium battery in the center of NX8E-408M-M1 PCB. Remove the old battery andreplace it with the new battery as illustration. The battery, when fully charged, will retain memory contentsfor approximately 24 months or more.Battery Type: SONY CR2032 Lithium BatteryCAUTION1. The battery may explode if they are not replaced properly.2. Never replace with battery other than the ones specifiedby the manufacturer (battery of the same type or theequivalent).3. Dispose of spent batteries as instructed by themanufacturer of the battery.* "B" flashes on the display of the Key Telephone whensystem battery is low. Replace it with the new battery. (Ifbattery is not installed in the system, "B" is not indicated onthe display.)RL2 RL1 CTR SPK DH2 DH1DHUCNRL1 CTR SPK DH2RL2 DH1CN1 CN2Door Lock ControlDeviceDoor Lock ControlDeviceNX8E-DHU-M1 PCBBAT
