23
Connector inside
the option slot.
Interface specifications
Transmission system EIA RS-232C
Transmission form Asynchronous, bi-directional, half-duplex
Data format Baud rate: 1200, 2400, 4800, 9600 bps
Data: 7 bits + parity 1bit (even or odd)
or 8 bits (non-parity)
Start bit: 1 bit
Stop bit: 1 bit
Code: ACII
Terminator: C
R
L
F
(C
R
: 0Dh, L
F
: 0Ah)
LSB
0
1
2
3
4
5
MSB
6
Stop bit
Parity bit
Data bit
Start bit
Pin connections
D-Sub 9 pin male connector
The interface is designated as DCE (Data Communication Equipment).
1 (-15V~-5V)
0 (5V~15V)
EJ-03
1 N.C.
2 Transmit data
3 Receive data
4 N.C.
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 N.C.
Inside of the EJ
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