7200 SERIES DIU DISTRIBUTED INTELLIGENT UNIT DESCRIPTION The Distributed Intelligent Unit (DIU) contains status and system control switches which duplicate many of the system control functions of the System Control Unit (SCU). The DIU is located remotely from the main 7200 Series enclosure and contains its own ground fault detection circuitry. The DIU enclosure also contains a power supply which furnishes operating power for the DIU and any other optional units which may be included. The DIU accepts input from the SCU via the FCINET® and controls any optional units installed in the enclosure. This enclosure may be located up to 4,000 feet (via twisted pair) from the main control and is opto-isolated from the main control. The DIU features degrade mode operation which enables it to control its own units in the event of communication failure between it and the main SCU. Each DIU can control up to five (5) Analog Loop Units (ALU) and provides two (2) Notification Appliance Circuits rated 1.75 amperes each. LEDs located on the DIU are as follows: LED Yellow Red Yellow Yellow Designation “DEGRADE” “ALARM” “SYSTEM TROUBLE” “NOTIF. APPL. CIRCUIT 1” LED Yellow Yellow Yellow Yellow Designation “GROUND FAULT” “SUPERVISORY” “SYSTEM SILENCE” “NOTIF. APPL. CIRCUIT 2” The DIU also includes three (3) front panel user buttons for system “RESET”, “SILENCE” and “ACKNOWLEDGE”. A pluggable terminal block is provided with the DIU for the connection of all field wiring. The terminal block will accommodate wire up to 12 AWG in size. The DIU is a full-size unit. TECHNICAL AND ORDERING INFORMATION Part No. Model 1100-0340 DIU Supervisory Current .017 amp. Alarm Current .072 amp. Description Distributed Intelligent Unit FCINET® is a registered trademark of Fire Control Instruments, Inc. Specifications are provided for information only, are not intended to be used for installation purposes, 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 16 Southwest Park, Westwood, MA 02090 USA TEL: (781) 471-3000 FAX: (781) 471-3099 An ISO 9001 Certified Company 9020-0346/Ver. 1.5