Rs-232c specifications – A&D GR Series GR-300 User Manual
Page 55
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14. RS-232C Specifications
Transmission system
Transmission form
Data format
EiA RS-232C
Asynchronous, bi-directional, half duplex
Baud rate : 600, 1200, 2400, 4800, 9600 bps
Data
: 7 or 8 bits
Parity
: Even, Odd (7 bits)
None (8 bits)
Stop bit
: 1 bit
Code
: ASCII
LSB
0
1
2
3
4
5
61
Start bit
Data bits
t
Stop bit
Parity bit
RS-232C
1
-5 V ~ -15 V
0 +5 V ~+15 V
Pin connections
Pin No.
Signal name
Direction
Description
1
FG
-
Frame ground
2
RXD
Input
Receive data
3
TXD
Output
Transmit data
4
RTS
Input
Ready to send
5
CTS
Output
Clear to send
6
DSR
Output
Data set ready
7
GND
Signal ground
8 - 25
N.C.
-
-
Circuits
EG
14, RS-232C Specifications
Page 54
Serial Interface