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USER MANUAL
NOTE:
When using the device for pass-through, keep in mind that the side (either Tx or RX) that is connected to the
device that the commands are getting sent to will require that the Tx and Rx pins get swapped around (serial
null modem wiring) . This means pin 2 of the DB9 connector will connect to the Rx pin of the HDBaseT device
and pin 3 of the DB9 connector will connect to the Tx pin of the HDBaseT device .
Communicating with RS232
RS232 commands can be sent to the unit using a computer or other RS232 devices . If using a computer, a
serial program has to be used . The serial program can be a general purpose serial terminal like Termite from
CompuPhase . Termite is a minimalistic, easy-to-use serial terminal that will do everything the unit requires
from a serial terminal so this section of the manual will use it as an example to send commands from a
computer .
Open up termite to see the screen next page:
Page 10
S3MBW-200 - HDMI Multi-format Extender Over CAT5e/CAT6
DB9 Pin
S3MBW Pin
2 (Rx)
TX
3 (Tx)
RX
GND
GND
