TM 10-6665-297-13&P
1-3.1.10
Relay External Circuits (continued)
normally closed contacts (i.e. double-pole, double-throw) wired to terminals to which external
devices may be connected. Fail relay K3 of CD800/830 models and K1 (Fail), K3 and K4 (Alarm)
relays of CD802/832 models provide one normally open and one normally closed contact to which
a remote indicating lamp, buzzer, or other device may be connected.
Relay switching contacts tolerate currents of up to 3 amperes (noninductive). For inductive loads,
derate contacts to 1.5 amperes maximum. Devices requiring currents that exceed 3 amperes
noninductive load or 1.5 amperes inductive load must be controlled by heavier external relays,
which may be switched by the relays contained in the control module.
1-3.2
CONTROL UNIT MODELS AND MODULAR CONFIGURATIONS . CD800/830 and
CD802/832 control units and modules are available in the following model configurations. CD800 and
CD830 models contain circuit boards designed to monitor single points. CD802 and CD832 models
contain printed circuit boards indicators, adjusters, and controls to monitor two discrete points per
module.
1-3.2.1 Series 800 or 802 single-unit configurations (Figure 1-15):
CD800P, CD80OPF, CD802P, CD802PF: Vertical front panel; chassis enclosure. PF: with flexible
cable; P: without flexible cable (extend- er card required to maintain connections to circuit-
board-front-panel assembly when extended for adjustments and tests)
CD800W, CD802W: Horizontal front panel; fiberglass-reinforced polyester, wall-mounting cabinet;
conduit hubs at either top or bottom
CD800X, CD802X: Circular front panel; explosion-proof cast aluminum housing for installation in
hazardous areas
1-3.2.2. Series 800 or 802 multi-module configurations (Figure i-16): CD800/802 P or PF control units may
be mounted together in any number at a central monitoring point. Five such units may be mounted
side-by-side in a standard 19- inch instrument panel, or in cutouts in any panel or enclosure in the
number desired. CD800 and 802 series control units provide an independent, integral power
transformer for each unit, whereas CD830 and 832 series control modules operate from a rack-adapter-
mounted power transformer common to up to six modules per rack.
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