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Display and Remote RS‑232 Control
Use a female 3‑pole captive screw connector to connect your computer or control system
to the Display and Remote RS‑232 ports.
1.
Wire the unterminated end of the RS‑232 cable to the three pins of the 3‑pole
captive screw connector, starting at the left of the 3‑pole captive screw connector
(see figure 10):
a.
Connect the transmit wire from the RS‑232 device into the Rx pin of the switcher.
b.
Connect the receive wire from the RS‑232 device into the Tx pin of the switcher.
c.
Connect the ground wire from the RS‑232 device into the G pin of the switcher.
2.
Plug the 3‑pole connector into the appropriate Display or Remote port on the rear
panel of the switcher.
3.
Connect the other end of the cable to the appropriate computer or control system port.
Transmit
Figure 10.
Remote Control (SA models only)
This 3‑pin, captive screw port allows an external audio controller to control volume and
mute levels remotely. When using the remote for the SA model, be sure to first set the VOL
switch to the lower position (see
Wiring for remote control
Options for remote control include the Extron VC 50, VCM 100 AAP, VCM 100 MAAP, VCM
200 series, and MLA VC10 Plus. Third party 10k potentiometer volume controllers can also
be connected to this port.
Figure 11 and the following instructions show the wiring for the VMS 100 MAAP. Wiring
other remote control connectors is similar.
Volume Pot
10k ohms
Figure 11.
Receive
Transmit
Receive
Ground
Ground
Remote Control RS-232
figure 3
10V
10 V (Pin 1)
2k ohms
Vol/Mute
(Pin 2)
Mute
Switch
Ground (Pin 3)
Remote Control Wiring (SA models only)
on page 8).
50mA
V C G
DTP2 R 212 Series • Installation
REMOTE
RS-232
Tx Rx G
16
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