BT RS-232 Series User Manual page 6

BT V2.1 RS-232 adapter user manual V2.2_Male
6.2 Signals:
Pin Signal
1 N/A
2 RxD
3 TxD
4 N/A
5 GND
6 N/A
7 RTS
8 CTS
9 VCC
7. Master mode applications: Set one adapter as the master role by the command "role=m". The
"auto=y" and "one=y" command is available under the role=m. The "one=y" command is available
under the "auto=y". The pin code must be the same for the paired master and slave.
7.1 "AUTO=Y": Auto link any slave with the start mac. Address "0012" or "0019". The "0018" is not
available. The master will re-link other slaves when the master or slave restart. The "auto=y"
command is available under the "role=m".
7.2 "ONE=Y": The master will link with the first link slave after restart. It will auto link any slave with
the start mac. Address "0012" or "0019". The "0018" is not available. The master will link with the
new slave when reset to default value. The "one=y" command is available under the "role=m" or
"auto=y".
DTE Direction DCE Direction
Input
Output
Output
Input
Output
Input
Output Input
Description
Transmitted data
Received data
Ground
Clear to send
Request to send (Default)
Power Input (5~40 VDC)
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2021.12.15