description the system control unit (scu) contains the system processor, system operating software and the system configuration memory to coordinate distributive processing of all 7200 series system operations. the scu functions as the system information and control center, processing all messages from any cable connected unit, including two degrade alarm (adac ? ) modes to ensure system survivability. it mounts in the top position in the cabinet. the system control unit also provides two (2) notification appliance circuits, class a or b, style z or y, remote city outputs (city box or polarity reversal), and alarm and trouble actuated relay contacts. a pluggable terminal block is provided with the scu for the connection of all field wiring. this block will accommodate wire sizes up to 12 awg. the scu is a one and one half size unit. the scu also includes a programming/diagnostic center with a two-character 7-segment digital display providing system operation, programming and internal trouble shooting features. three front panel user switches are provided for system reset/lamp test, silence, and acknowledge. additional switches include programming, and normal/off switches for municipal circuits, control of notification (circuit) 1 and notification (circuit) 2. leds located on the system control unit include: 7200 series scu system control unit 301 2nd ave waltham, ma 02451-1133 usa tel: (781) 487-0088 fax: (781) 370-4132 specifications are provided for information only and are believed to be accurate. however, no responsibility is assumed by fire control instruments, inc. for their use. specifications subject to change without notice. ? 1997 all rights reserved technical and ordering information part no. model supervisory alarm description current current 1120-0469 scu .050 amp. .260 amp. system control unit red alarm yellow supervisory yellow system trouble yellow trouble notification 1 yellow trouble notification 2 yellow ground fault yellow trouble municipal yellow signal silence yellow program 1 yellow program 2 yellow degrade 9020-0292/ver. 1.3 adac ? is a registered trade mark of fire control instruments, inc.
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