Configuring Serial Port A - evertz 8083XDS-AD Instruction Manual

TECHNICAL DESCRIPTION
To gain access to the DIP switches you will have to remove the top cover.
Before removing the top cover of the unit make sure that both power
cords are disconnected from the mains.

5.3.4 Configuring Serial Port A

Serial port A can be configured for various pinouts, as described in Chapter
2. During manufacture, port A is configured for RS-232 DTE. This allows
port A to connect to a captioning computer using a typical null modem
cable like ports B and C.
To reconfigure port A, it is necessary to unplug the XDS encoder and
remove the top cover. Figure 5-1 shows the settings of jumper block J9 on
the main circuit board for the various configurations available. The pinouts
corresponding to RS-232 DTE (factory setting) and RS-422 tributary
configurations are given in Chapter 2.
To find out whether port A has been reconfigured for RS-422 logic levels,
refer to section 5.5.3 "Viewing Firmware and PLD Revision Levels". It is
impossible to tell whether the serial port pinout has been altered without
opening the unit for inspection, however. This may complicate attempts to
upgrade the firmware later. The instructions for downloading new firmware
to the XDS encoder assume that the serial port A configuration has not
been altered from the factory settings.
8083XDS-AD Analog and SD-SDI XDS Encoder
Revision 1.0.2
Page 5-5