Panasonic BT-LH900A Operating Instructions Manual page 24

REMOTE specifications
RS-232C connector
For the RS-232C connector pin layout and connections, refer
to the figure below and tables on the right.
<Note>
The RS-232C remote control specifications of this BT-
LH900A are not compatible with those of the conventional
BT-LH900.
If you wish to remotely control the BT-LH900A by using the
same remote control specifications as those of the BT-
LH900, then contact your dealer.
5
9
PC side
Pin No. Signal
1 N.C.
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 N.C.
24
(continued)
RS-232C
4 3 2 1
8 7 6
BT-LH900A side
Pin No. Signal
1 N.C.
2 TXD
3 RXD
4 DSR
5 GND
6 DTR
7 CTS
8 RTS
9 N.C.
RS-232C REMOTE operation
method
$ Connectors and signal names
Connector: D-SUB 9-pin (female)
Pin No. Signal name
1 N.C. Not connected
2 TXD Transmission data
3 RXD Reception data
4 DSR Connected inside.
5 GND Ground
6 DTR Connected inside.
7 CTS Connected inside.
8 RTS Connected inside.
9 N.C. Not connected
$ Communication Conditions
Signal level Conforms to RS-232C
Synchro system Tone pace synchro system
Transfer rate 9600 bps
Parity None
Data length 8 bit
Stop bit 1 bit
Flow control None
$ Command format
STX (02h) Command
OCommands are 3 characters following STX, finally
adding ETX.
OAdd a : (colon) after the command as required, and add
the data.
$ Response formats
1. Setting command response
STX (02h) Command
2. Query command response
STX (02h) Data
3. Error response
STX (02h) Error code
Error code
ER001 : Invalid command
ER002 : Parameter error
Explanation
: Data ETX (03h)
ETX (03h)
ETX (03h)
ETX (03h)