Hall Research Technologies SP-HD-2B, User Manual

Page: 7 / 10

2-Channel HDMI 2.0 Splitter
© Copyright 2020 Hall Research, LLC.
7
5.0 Serial RS-232 Control
The SP-HD-2B is controllable via RS-232 to change EDID and audio settings, and
to query the unit’s status.
Serial Communication Parameters
Baud rate: 115200, Bits: 8, Parity: None, Stop bits: 1, Flow Control: None
Serial Commands
 Each Command and Response must be terminated with a Carriage
Return <CR>
 Unknown or Invalid commands will return INVALID COMMAND<CR>
Command Description Response
EMn
Where:
n = 0 for Auto (Default)
n = 1 for Output 1
n = 2 for Output 2
Set the EDID mode
OK
EM? Query the EDID mode EMn
Where:
n = 0 for Auto
n = 1 for Output 1
n = 2 for Output 2
AUn,m
Where:
n = Output [1,2]
m = 0 for Mute OFF
m = 1 for Mute ON
Set the HDMI Output
Audio state
OK
SCn,m
Where:
n = Output [1,2]
m = 0 for Scaler OFF
m = 1 for Scaler ON
Sets the HDMI Down
scaler state
OK