Dwyer PUX - Manual (Page 86)

12 - 1
(1) General specifications
Communication system : Half-duplex
Synchronizing system
: Start-stop synchronizing
Transmission speed : 300 / 600 / 1200 / 2400 / 4800 / 9600 bps (selectable)
Parity : Even/odd number / None (selectable)
Data length : 8 bits
Stop bit : 1 bit / 2 bits (selectable)
Data code : ASCII
Insulation : Non-insulation between transmission line and converter (see chapter 12 (3)).
(2) Interface specifications
Electric characteristic : Based on EIA RS-232C
Connection signal
:
Cable length : 15m or less
Connector : D-SUB, 9-pin plug
Connection : 1:1 connection
(3) Composition
12. SPECIFICATIONS FOR SERIAL TRANSMISSION (RS-232C)
Pin No. Signal name Meaning Signal direction
2 RxD Receive data Input
3 TxD Send data Output
4 DTR Data terminal relay (Not used)
5 GND Signal ground
6 DSR Data set ready (Not used)
7 RTS Request to send (Not used)
8 CTS Clear to send (Not used)
P UX Meter Host computer
Transmission cable
Non-isolation
15m
RxD TxD
TxD RxD
DTR DTR
GND GND
DSR DSR
RTS RTS
CTS CTS
BULLETIN F-68