Rs-232 Commands; Serial Control Protocol Commands; Rs232 Pin Assignment; Configuring The Serial Port - ATEN VM3404H User Manual

Serial Control Protocol Commands

The VM3404H / VM3909H's built-in bi-directional RS-232 serial interface
allows system control through a high-end controller or PC. The RS-232
commands for the VM3404H and VM3909H are the same, with the only
difference being that the VM3909H has 5 additional ports.

RS232 Pin Assignment

Pin
1
2
3
4
5

Configuring the Serial Port

The controller's serial port should be configured as follows:

RS-232 Commands

Description
Not connected
RXD
TXD
Not connected
GND
Baud Rate
Data Bits
Parity
Stop Bits
Flow Control
Pin
6
7
8
9
19200
8
None
1
None
Chapter 5
Description
Not connected
Not connected
Not connected
Not connected
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