Epiphan Pearl Mini Live Video Production System - Manual (Page 390)

Pearl Mini User Guide Controlling Pearl Mini using RS-232 / serial port
Controlling Pearl Mini using RS-232 / serial port
Pearl Mini has an RS-232 / serial port control interface (via USB) for integration with existing control room and
board room equipment.
Important considerations
l
Each command sent to Pearl Mini over RS-232 must be terminated with a line feed (LF) character
(ASCII code 10). Make sure that your software adds the line feed to each command.
l
For values with spaces, enclose the value in quotation marks. For empty values, use empty quotation
marks with nothing between.
l
You must always follow a "SET" command in RS-232 with the "SAVECFG" command. Otherwise the new
configuration setting(s) will not take effect. See the "SET" examples that follow.
For a complete list of supported SET and GET parameters, see Configuration keys for third party APIs . To
connect the RS-232 cable and configure RS-232 on Pearl Mini, see Connect and configure the RS-232 port
The following examples show how to use RS-232 commands to control Pearl Mini:
To start recording on channel 2:
START.2
To stop recording on channel 2:
STOP.2
To start recording on all channels and recorders:
START
To get the value of the frame size (resolution) for channel 2:
GET.2.framesize
To set the frame size (resolution) on channel 2, enclose the parameter in quotes to preserve the
spaces:
SET.2.framesize="640 x 480"
SAVECFG
379