Contents
1 Cautions, Warnings, and Regulatory Information.....................................................................................3
2 Overview.........................................................................................................................................................4
2.1 Features.................................................................................................................................................................................................4
2.2 Power supply specification..................................................................................................................................................................6
2.2.1 Battery...................................................................................................................................................................................................................6
2.2.1.1 Battery specification....................................................................................................................................................................................6
2.2.1.2 Battery Replacement Procedure..............................................................................................................................................................6
3 Installing the 2250 FACU...............................................................................................................................7
3.1 Unpacking the 2250 FACU................................................................................................................................................................... 7
3.2 Locating the back box.......................................................................................................................................................................... 7
3.3 Mounting the back box........................................................................................................................................................................7
3.4 Trim kit for semi-flush mounting......................................................................................................................................................10
3.4.1 Trim kit application.......................................................................................................................................................................................... 10
3.4.2 Attaching the trim............................................................................................................................................................................................ 10
3.5 Connecting conduit entrances..........................................................................................................................................................12
4 Wiring the 2250 FACU................................................................................................................................. 14
4.1 Wiring the 2250 control unit............................................................................................................................................................. 14
4.1.1 Wiring the AC power supply.......................................................................................................................................................................... 14
4.1.2 Connecting the backup batteries.................................................................................................................................................................14
4.1.3 Connecting the battery harness...................................................................................................................................................................15
4.1.4 Minimizing power losses................................................................................................................................................................................15
5 Powering the system.................................................................................................................................. 16
6 Product description.................................................................................................................................... 17
6.1 MX addressable devices.................................................................................................................................................................... 17
6.1.1 MX loop specifications.................................................................................................................................................................................... 17
6.1.1.1 Class A wiring..............................................................................................................................................................................................18
6.1.1.2 Class B wiring..............................................................................................................................................................................................19
6.2 Notification Applicances Circuits (NACs)..........................................................................................................................................20
6.2.1 Wiring NACs.......................................................................................................................................................................................................20
6.2.1.1 Selecting an end-of-line resistor............................................................................................................................................................20
6.2.1.2 Wiring the Class A notification appliance circuits..............................................................................................................................21
6.2.1.3 Wiring the Class B notification applicance circuits............................................................................................................................21
6.2.1.4 NAC wiring distance.................................................................................................................................................................................. 22
6.2.1.5 NAC wiring specifications.........................................................................................................................................................................22
6.3 Auxiliary relays....................................................................................................................................................................................23
6.3.1 Wiring auxiliary relays..................................................................................................................................................................................... 23
6.4 The RS485 interface........................................................................................................................................................................... 24
6.4.1 Wiring annunciators........................................................................................................................................................................................ 24
6.5 Auxiliary power...................................................................................................................................................................................26
6.5.1 Wiring auxiliary power.................................................................................................................................................................................... 26
6.6 The USB interface...............................................................................................................................................................................26
6.7 Optional modules...............................................................................................................................................................................26
6.7.1 City circuit cards 2050-9909..........................................................................................................................................................................27
6.7.1.1 Mounting the city circuit card.................................................................................................................................................................28
6.7.1.2 Field wiring.................................................................................................................................................................................................. 29
6.7.2 IP Communicator / Connected Services Gateway Module (2250-9800)............................................................................................30
6.7.3 NFC...................................................................................................................................................................................................................... 30
6.7.3.1 Loading configuration using NFC...........................................................................................................................................................31
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