Hioki 3166 - Overview of the RS-232 C Interface; RS-232 C Interface Specifications

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11.2 Overview of the RS-232C Interface
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1.2.1 RS-232C Interface Specifications
Transfer method
Start-stop synchronization, full-duplex
Printer-related settings
Baud rate (bps): 2400, 9600
Data length (bits)
7/8
Parity check
EVEN/ODD/OFF
Stop bits
1/2
Input voltage level
+5V to +15V ON
-15V to -5V OFF
Output voltage level
+5V to +9V ON
-9V to -5V OFF
Pin No EIA symbol JIS symbol Common symbo
l
Function
1
CF CD DCD Data channel detection
2
BB RD RxD Reception data
3
BA SD TxD Transmission data
4
CD ER DTR Data terminal ready
5
AB SG GND Signal ground
6
CC DR DSR Data set ready
7
CA RS RTS Ready to send
8
CB CS CTS Clear to send
9
CE CI RI Call indicator
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1.2 Overview of the RS-232C Interface
The 3166’s RS-232C interface complies with:
・EIA RS-232C
・CCITT V.24
・JIS X51101
1. General specifications (concerning the personal computer)
2. Interface specifications (DTE operation)
3. Connector specification