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-3OPTIONAL CONTROL UNIT CONFIGURATIONA maximum control unit configuration can include all of the minimum configuration items plus additions asnoted below. Details of these accessories are given in Appendix D.Initiating Device CircuitsThe Faraday 12503 Conventional Expansion Board provides four initiating device circuits. The IDCs canbe wired for Class B (Style B) operation or Class A (Style D) operation with the Faraday 12401A Class AAdapter. Up to two 12503 boards may be used.Addressable Device CircuitsThe Faraday 12522 Loop Driver Board with the Faraday 12505 Loop/Signal Expansion board providestwo additional addressable device circuits. Only one 12505 board may be used.Faraday Addressable Devices:Each addressable device circuit drives up to 60 addressable devices, detectors and/or modules.System Sensor Devices:Each addressable device circuit drives up to 99 addressable sensors and 99 addressablemodules.Notification Appliance CircuitsThe Faraday 12503 Conventional Expansion Board provides two additional notification appliance circuits(NACs). Each circuit can be selected to give continuous output or one of eight sounding patternsavailable in the control unit. There is also a system coder capable of zone coded operation. All of theNACs are power limited and can be wired for Class B (Style Y) operation or Class A (Style Z) operationwith the Faraday 12401A Class A Adapter. Up to two 12503 boards may be used.The Faraday 12505 Loop/Signal Expansion board provides four additional notification appliance circuits(NACs). Each circuit can be selected to give continuous output or one of eight sounding patternsavailable in the control unit. There is also a system coder capable of zone coded operation. All of theNACs are power limited and can be wired for Class B (Style Y) operation or Class A (Style Z) operationwith the Faraday 12504 Class A Adapter. Only one 12505 board may be used.Isolated Printer ConnectionThe Faraday 12511 Serial Isolation Board will convert the RS232 printer connection to an isolated output.User Programmable RelaysThe Faraday 12402 Alarm Relay Board provides 12 dry relay contacts. These relay may be programmedto activate from a device or zone. The relay contacts are form C and are rated 1A@30VDC or0.5A@30VAC, resistive.Digital Alarm CommunicatorThe Faraday 12410 Digital Communicator Cable may be used with the Faraday 15128 Digital AlarmCommunicator. This will allow control unit status data to be sent to a remote receiving station.Digital Alarm CommunicatorThe Faraday 12513 DACT (Digital Alarm Communicator Transmitter) Expansion Module providestelephone line connections for communication with a DACR (Digital Alarm Communicator Receiver). TheDACT Expansion Module options are set through the control unit programming sequence.