DOUGLAS
SWITCHES
Douglas 2-Wire Switches
Douglas 2-wire switches are momentary switches that use internal
diodes to provide an ON or OFF pulse.
The white terminal of the switch is connected to the common 24VAC source, and the red terminal to the relay.
Therefore, a 6-switch station will require 7 wires: 1 common 24VAC wire and 6 red signal wires.
A variety of switch types for Douglas relays are available. They include:
rocker switches LED indicator switches Lock-out switches Key switches Toggle switches Anti-vandal switches Foot pedal switches
Douglas 2-wire élan Switch Modules
Douglas élan 2-wire Switch Modules each contain 1 to 4 LED-indicating rocker switches.
The white terminals of the switches in the module connect
to the common 24VAC source, and the red terminal of each switch
to the relay. For example, a 4-switch module will require
5 wires: 1 common signal wire and 4 red signal wires. All
connections are on the back of the module.
A variety of élan 2-wire switch types, including key-activated accessory switches, are available:
LED indicator switch modules, 1, 2 , 3 or 4 switch configurations key switch module maintained tumbler key switch module Key switches lock out module
Also available are élan data line switch modules that connect to the data line in a
W-2000 network and élan controller modules for
dimming ballasts.
Douglas Contact Closure Switches
Douglas also provides a line of momentary and maintained
closure switches for signaling other systems or devices.
Douglas Switch Station Hardware and Accessories
A wide variety of switch cover plates, switch enclosures
and switch accessories are available from Douglas.
For élan switch modules, 'Decora' style cover plates are available
in stainless steel or in white plastic.
Product Details, Douglas Switches:
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