A&D TM-2657P Instruction Manual page 42

<D-Sub 9-pin male（External input/output unit : All units common）>
Transmission specifications
Output standards
Transmission format
Signal speed
Transmission format
Data bit length
Parity
Stop bit
Code
Pin assignment
※The protocol depends on the equipment connected.
Cable connection between the device and a personal computer
TM-2657P
D-Sub 9 pin male
Complies with EIA RS-232C
Stop-start system (Half duplex)
1200, 2400, 4800 and 9600 bps (can be changed using
Can be changed using
8 bits
None
1 bit, 2 bits (can be changed using
ASCII
Pin No. Signal name
－
1
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
－
9
Personal computer or ID Reader
D-Sub 9 pin male
32
F20
F24
)
Description
－
Receive data
Transmit data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
－
F22
)