1 2 5 3 0 / 1 2 5 4 0 O W N E R ' S M A N U A LP/N 447203 Issue I II-4BATTERY SETSThe 12530/15240 control unit is designed to use only sealed lead-acid or equivalent batteries for back-uppower. Attaching a close-coupled battery box, if required, may use battery sets beyond the physicalcapacity of the enclosure (10 AH).AUXILIARY MODULESRemote LCD AnnunciatorThe Faraday 12506 remote LCD annunciator consists of a backlit 80 character LCD alphanumericdisplay, 4 menu buttons, 4 dedicated buttons for operator interaction, 6 LED indicators, and a securitykey-switch. The display and controls on the annunciator are the same as those on the front of the controlunit, including a key-switch for security. The back light operates only when the data are being accessed,to conserve power.Up to sixteen annunciators may be addressed by the communications circuit, but some may require12408 auxiliary power supplies, depending on the total accessory power loading.Serial Relay Unit and Serial Relay ExtenderThe Faraday 12507 includes a processor board and a relay board. The processor board receivescommands from the control unit for activating the relays and transmits supervision and control functionsto the control unit. The processor board can control up to 3 relay boards. Each relay board provides 8relays with form C contacts. The control unit can address up to 8 Serial Relay Units and/or SerialAnnunciator Units. Faraday 12408 auxiliary power supplies will be required to power units beyond thecontrol unit capability.Serial Annunciator Unit and Serial Annunciator ExtenderThe Faraday 12509 includes a processor board and an annunciator driver board. The processor boardreceives commands from the control unit for activating the outputs and transmits supervision and controlfunctions to the control unit. The processor board can control up to 4 annunciator driver boards. Eachdriver board provides 16 supervised outputs for LEDs or incandescent lamps. The control unit canaddress up to 8 Serial Relay Units and/or Serial Annunciator Units. 12408 auxiliary power supplies willbe required to power units beyond the control unit capability.Network Interface BoardThe Faraday 12523 Network Interface Board provides an interface between the associated control unitRS232 connection and an MPC-NET network. The Network Interface Board is powered from the controlunit auxiliary power output. For further installation instructions, see the MPC-NET manual P/N 447259.Auxiliary Power SuppliesThe Faraday 12408 Auxiliary Power Supply can be used to provide additional power for notificationappliance circuits. The 12408 has two 1.5A power-limited outputs and a trouble relay contact formonitoring by the control unit.