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ProBio & ProFAC User Manual 17
In the initial interface, press
to enter main menu, and select
Comm.
Select
Serial Comm
Select
RS232/485
Select
RS485 Select RS485 as the function of
“master unit” or choose to
disable RS485

NOTES:
When RS485 is used as the function of “ master unit ”, the device will act as “master unit”, and it can
be connected to RS485 fingerprint reader.
6.3 PC Connection

Comm key Settings
To improve security of data, Comm Key for communication between the device and PC needs to be set.
If a Comm Key is set in the device, the correct connection password needs to be entered when the
device is connected to the PC software, so that the device and software can communicate.