AT-OME-RX21
10
Installation
Captive Screw Connections
RS-232
Audio
Relay
Connect to an audio DSP, amplifier, or other audio distribution devices.
A 5-pin captive screw connector has been included for RS-232.
Pin out will be determined by the RS-232
cable and connect as RX (receive), TX
(transmit) and (Ground). Ground will be
shared between port 1 and port 2.
GND
RX
TX
GND
RX
TX
Use a jumper between the negative and ground pins
when using an unbalanced connection.
Balanced
Unbalanced
ANALOG IN
L
R
Negative
-
Negative
-
+
Positive
+
Positive
Gr
ound
ANALOG IN
L
R
+
Positive
+
Positive
Gr
ound
A dual low-voltage signal relay is built into the OME-RX21 for control of devices such as electric screens and display
lifts. A 3-pin captive screw connector has been included for connection.
When using a dual signal relay with an electric projection screen, it
allows for two different circuits to be controlled: up and down
(pictured to the right)
.
The relay will default to follow the display. When the unit turns on the
relay will close C1 and open C2. When the display is turned off and
signal is no longer being received C1 will open and C2 will close.
There are 3 connections for the relay: C1, COM, and C2 (Circuit 1,
Common, and Circuit 2.)
C2
C1
COM
C1
C1
C2
C2
COM
COM
Down
Closed
Open
Open
Closed
Up
NOTE:
Port 1 will control the display and port 2 is for unit control.
