Multi-Viewer Switch API
MAN-000023 Page 2
Introduction
This guide explains how to use RS-232 to remotely control an Adder Multi-Viewer switch (AVS-1124,
CCS-MV4224).
To control a switch using RS232, the user needs to connect a controlling device to the
switch’s RCU port.
The controlling device can be a PC or any custom device with RS-232 capability.
Remote controlling means performing actions that users could otherwise do only using the front panel or
hotkeys, including:
•
Switching channels
•
Audio hold
•
Selecting a screen preset layout
Installation
This procedure shows how to connect a switch to a remote-control device. A suitable RS232 cable will be
required with an RJ12 connector to plug into the RCU port with the pinout shown below:
Pinout for the RDU port:
•
Pin 1: 5V
•
Pin 2: Not connected
•
Pin 3: Not Connected
•
Pin 4: GND
•
Pin 5: RX
•
Pin 6: TX
Few modern PCs have an RS232 port, so it may be necessary to use a USB or Ethernet adapter.
Operation
Configuring example using the PuTTY open-source serial console utility. This procedure demonstrates
how to switch channels via RS-232 using a remote control Windows PC.
Pre-configuration
1. Install PuTTY on the remote computer.
2. Connect
a serial cable from the PC’s USB port to the switch’s RCU port.
3. Run the PuTTY utility.
4. Configure the Serial, Terminal and Session settings, as per figures 1 to 3
