BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
2
2.2 Rear Side:
3. Power supply:
3.1 Voltage: 5~40 VDC, Don’t exceed the limit.
3.2 There’re 3 ways to power the adapter: Mini USB, 2P Terminal Block (Blue) and pin9 of DB9,
please choose one. Don’t power the adapter by more than one source.
3.3 The mini USB to type A cable is inside the standard package.
4. Guide:
4.1 Default value:
Baud rate: 9,600 bps
Data bit: 8
Parity: none
Stop bit: 1
Flow control: none
Device Name: Serial Adapter
Pin: (None), The value will be authenticated by each other for the S2B2232FIV2 or
S2B2232FEV2 only.
Mode: Default is “Slave”, The adapter can be configured the “Master” by the command
“role=m”.
4.2 If the PC not built in the Bluetooth, please source the Bluetooth USB dongle or use the same
adapter set as the “master”. The built in Bluetooth of NB supports class 2 only, 10 meters. If you
need 100 meters range, you will connect two adapters.
4.3 Slide Switch of “DTE/DCE”
Use the slide switch to swap the “TX/RX” and “CTS/RTS”. By slide the switch, you can set the
adaptor either as a DTE (towards antenna connector) or a DCE (towards DB9 connector). In
most situation, switch to “DTE” if connect with the remote device.
4.4 Slave mode (default): Start the searching from the PC or smartphone and connect it.
4.5 Master mode: Set by the command “search=y” to find the Bluetooth slave devices and connect.
4.6 Reset Button: Pressed with a clip or pin into the hole on the top cover. Restore the factory
settings (after over three seconds’ press).
▲ DCE
▼ DTE
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