BT RS-232 Series - RS232 Signal Descriptions; Master Mode Applications

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
6
6.2 Signals:
Pin Signal DTE Direction DCE Direction Description
1 N/A
2 RxD Output
Input
Transmitted data
3 TxD Input
Output
Received data
4 N/A
5 GND Ground
6 N/A
7 RTS Input
Output
Clear to send
8 CTS Output Input Request to send (Default)
9 VCC Power Input (5~40 VDC)
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”.