
INSTRUCTION MANUAL & PARTS LIST FOR THE
RAD-800 INTERFACE CONTROL UNIT
SECTION I
GENERAL INFORMATION
1.1 APPLICATION:
The R D-800 Radio Master Interface Control Unit (Fig. 1-1) provides a means of connecting any
fire alarm system to an DIGITIZE R D-211 (Radio Master Box) for automatic radio transmission of
alarms to the Communication Center. The R D-810 Standby Power System is shown in Fig. 1-2.
The unit is available with four separate supervised initiating circuits for remote tripping of a Radio
Master Box (R D-211). These initiating circuits operate from normally open contact alarm
initiating devices.
Each initiating circuit of the control unit is connected to an individual trip relay in the Radio Master
Box. Each trip relay is identified by a corresponding zone code that is transmitted to the
Communications Center Radio Receiver (*R D-6P/20P). The Radio Master Box trip relays may
be connected to the zone circuits of a single Interface Control Unit, or to the zone circuits of two or
more Interface Control Units.
n L RM indicator lamp, a TROUBLE indicator, and an audible device are mounted on the front
panel of the Interface Control Unit. Mounted inside the unit is a battery charger switch, a buzzer
control switch, and a master box disconnect switch for each of the four zones (Fig. 1-3).
The R D-810 Standby Power System (Fig. 1-4) is comprised of a voltage regulator and two 5
ampere/hour batteries. It is designed for use with the R D-800. The batteries are provided with
polarized connectors which plug into the quick connect terminals located at the bottom of the PC
Card. The battery, when maintained according to recommended procedure will provide a trouble
free source for powering the R D-800 during prolonged power outages. The battery is
conservatively rated for the application capacity to power a 3 ampere alarm signal for a minimum
of five minutes. The life of the battery is estimated at a minimum of three years.
1.2 OPTIONAL ACCESSORIES:
The following items are available as optional accessories:
1. 0 - 50 Voltmeter to indicate the power supply voltage (PME-29).
2. 0 - 100 Milliammeter to indicate the normal charging current being supplied to the standby
storage battery. When the B T switch is in the HI R TE position, the meter is shorted out to
protect it against high currents (PME-30).
common-alarm accessory relay to provide single pole, double throw common-alarm contacts,
rated for 2 amps max at 26 VDC and 1 amp max at 120 V C (P R-407).
• For information on the DIGITIZE, INC. R D-6P/20P Radio Receiver, see Information
Sheet PN: 750112 or contact your local distributor.
DIGITIZE, INC. 700129-0000 REV B 12/01 1-1
Specifications Subject to Change Without Notice