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DinBox PSTN Reference manual – V1.3
Bausch Datacom NV
17
7.4
Example configuration for RS-485 communication
The RS-485 interface must be connected via the screw contacts on the opposite side of
the power connection.
Connect a terminal (PC) to the RS-232 interface (RJ45). The
DinBox PSTN(485)
will
automatically switch to the RS-232 interface if DTR is present (JP1 on 1-2 position).
Verify the correct communication parameters, for example 9600 8N1.
Send the commands below to the
DinBox PSTN(485)
modem.
at&f
‘ factory reset
at+ipr=9600
‘ autosensing off, lock on 9600 bps
at&d0
‘ no DTR
at&k0
‘ no RTS / no flow control
atk0
‘ dump mode
ats0=0 or x
‘ no answer (0) or answer after x rings
ate0
‘ local echo off
at&w
‘ save in NVRAM
It’s important to disable local echo (ate0) when RS-485 2-wire is used !