Manual No. 25-ULPNR102-01; Mar, 2005 LMD 1135 Laser Fixed Mount Scanner
Page 6
RS232 Communications Specifications
RS232 Data Transmission Format
Parameter Default Optional
Settings
Timing
Asynchronous
No. of Start Bits
1 bit
No. of Stop Bits
1 bit
1 or 2 bits
No of Data Bits
8 bit
7 or 8 bits
Parity
None
Odd / Even / None
Baud Rate
9600 baud
150 to 38,400 baud
Handshaking
None
Hardware / Software/ None
RS232 Transmit / Receive Character Format
TXD/
RXD
Start
Bit
LSB
7 or 8
Data Bits
MSB
Parity
Bit
Stop
Bit
RS232 Data Format
Transmit Decoded
Data CR
ESC Command
CR
Receive
STX Command
ETX
RS232 Signal Level
Signal Name
In / Out
Mark/Off Space/On
TXD
Out
-5 to -15 +5 to +15
RXD
In
-3 to -15 +3 to +15
Connector Pin-outs
9 Pin D-Sub Female Connector (with power stereo jack)
Pin No.
Signal
Direction
1 Frame
Ground
2 TxD
Output
3 RxD
Input
4 NC
5 Signal
Ground
6 NC
7 CTS
Input
8 RTS
Output
9 NC