Epiphan Pearl - Manual (Page 309)

Pearl User Guide Control with RS-232 / serial port
Control with RS-232 / serial port
Pearl presents an RS-232 / serial port control interface (via USB) for integration with existing control room and
board room equipment. This section covers the following topics:
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Connect and configure the RS-232 cable
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Control Pearl with RS-232
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RS-232 / Serial port command examples
Connect and configure the RS-232 cable
To connect your control equipment to Pearl you will need a standard RS-232 null-modem cable and a USB to
RS-232 serial adapter cable. Adapter cables are not included with Pearl. Only certain adapter chipsets are
supported, Epiphan recommends this
adapter cable from Startech.
To connect the serial port cable:
1. Attach the null modem cable to the control interface.
2. Connect the USB to RS-232 serial adapter to the null-modem cable.
3. Connect the USB to RS-232 serial adapter to one of the system’s USB ports.
The only configuration available for the serial port is flow control. Flow control changes the rate of data
transfer over the cable. Some communication settings are static and cannot be changed. The static settings
are:
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Baud rate set at 19200
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Parity set to none
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Stop bits set to one
To configure serial port flow control:
1. Connect to the admin interface using your preferred connection mechanism. See Connect to the admin
interface .
2. Login as admin.
3. Select the Serial Port link in the Configuration menu; the serial port configuration page opens.
4. Select Hardware, Software, or None from the drop-down menu. Refer to the table below for a
description of the options.
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