24
REMOTE specifications
(continued)
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.
Pin No.
1
2
3
4
5
6
7
8
9
Signal
PC side
BT-LH900A side
RS-232C
N.C.
RXD
TXD
DTR
GND
DSR
RTS
CTS
N.C.
Pin No.
1
2
3
4
5
6
7
8
9
Signal
N.C.
TXD
RXD
DSR
GND
DTR
CTS
RTS
N.C.
1
6
9
5
4
3
2
8
7
RS-232C REMOTE operation
method
$
Connectors and signal names
Connector: D-SUB 9-pin (female)
Pin No.
Signal name
Explanation
1
N.C.
Not connected
2
TXD
Transmission data
3
RXD
Reception data
4
DSR
Connected inside.
6
DTR
Connected inside.
7
CTS
Connected inside.
8
RTS
Connected inside.
5
GND
Ground
9
N.C.
Not connected
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
$
Communication Conditions
STX (02h)
O
Commands are 3 characters following STX, finally
adding ETX.
O
Add a : (colon) after the command as required, and add
the data.
Command
Data
ETX (03h)
:
$
Command format
STX (02h)
Command
ETX (03h)
STX (02h)
Data
ETX (03h)
$
Response formats
1. Setting command response
2. Query command response
STX (02h)
Error code
Error code
ER001 : Invalid command
ER002 : Parameter error
ETX (03h)
3. Error response
Summary of Contents for BTLH900A - HD MONITOR
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