Hioki 3158 - Chapter 7 RS-232 C Interface; Specifications

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7.1 Specifications
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A
Transmission mode Start-stop synchronization, full duplex
Transfer rate 9600 bps
Data length 8 bit
Parity None
Stop bit 1 bit
Hand shake No x flow, hardware flow control
Delimiter CR, CR + LF for reception
CR + LF for transmission
No hardware flow control. RTS is connected with CTS in the 3158.
Input voltage level +5 V to +15 V ON
-15 V to -5 V OFF
Out put voltage
(load resistance 3 kΩ to 7 kΩ)
+5 V to +9 V ON
-9 V to -5 V OFF
Pin number signal I/O Contents
2 RxD IN Incoming data
3 TxD OUT Outgoing data
5 GND GND Signal ground
Other pins are not used
Chapter 7
RS-232C Interface
7.1 Specifications
The RS-232C settings of 3158 are as follows. Since the 3158 settings are fixed and
cannot be changed, these settings must be matched on the computer side.
RS-232C Settings
Electrical Characteristics
Connector
Pin arrangement of interface connector ( D-sub 9 Pin male )
The signal lines of the 3158's RS-232C connector are as follows.