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USER MANUAL - DUX-TX-70 / DUX-RX-70 HDMI EXTENDER
Operate with RS232
RS232 Pinout
The following figure shows the RS232 pinout. Please connect with Phoenix Connectors
provided.
RS232 for Firmware Upgrading
RS232
port of DUX-TX-70 and DUX-RX-70 can be used for firmware upgrading.
To upgrade firmware of DUX-TX-70 or DUX-RX-70:
1. Download firmware upgrading execution software (please contact the product
manufacturer or your local dealer) to your PC;
2. Swith the “MODE” to “UPDATE”;
3. Connect your PC to RS232 port using a RS232 Cable;
4. Click to run the execution software;
5. When the upgrading is successful, power cycle the device.
NOTE: DUX-TX-70 and DUX-RX-70 must be upgraded individually.
Fig 8: RS232 Pinout
Control System
TX
TX
RX
RX
GND
GND
HDBT OUT
DUX-TX-70
HDBT IN
DUX-RX-70
RS232 Cable
PC
RS232 Cable
PC
Fig 9: RS232 for Firmware Upgrading