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CONTROLS - USING 3RD PARTY (DRY CONTACT)
via included Fontus
Projector Dry Contact Closure Input
1a. If your screen is low-voltage then at the Head end location, connect the Power Supply wires
running to the V+ and V- (Fontus).
1b. If your screen is line-voltage then a low-voltage power supply (incl.) will be needed to power
the Fontus.
2. A momentary contact between (+) and (G) will send the upper limit (UP) command to the
screen over 485.
3. A momentary contact between (-) and (G) will send the lower limit (DOWN) command to the
screen over 485.
4. Momentary contacts between both (+ / - ) and (G) will send the (STOP) command to the
screen over 485.
Screen Power Supply
20m Max�
to the 3rd
Party Control
Fontus Dry Pinouts
DATA Ground
485 INPUT /
OUTPUT side
+ 7 - 28v DC
31
Red wire
Black
wire
V+
V-
+
-
G
2 Dry Contacts
Momentary Inputs
UP
STOP
DOWN
G
- Data
-
+ DATA
+
- GROUND
V-
V+
Screen
Common Ground
G
Dry Contact (Lower Limit)
-
Dry Contact (Upper Limit)
+
Ground -
V-
7 ~ 28v DC +
V+
GPIO (INPUTS)
Power Supply
Input
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