SATEC C192PF8-RPR - Manual (Page 22)

Chapter 2 Installation 17
9-PIN DB9 FEMALE CONNECTOR
POWERMETER
14
15
13
RS-232
RTS
CTS
8
7
RxD
TxD
SG
TxD
DTR
DSR
6
4
3
RxD
GND
5
2
c99-11015
IBM PC/COMPATIBLE
Figure 2-17 RS-232 Simple 3-Wire Computer Connection, 9-pin
Figure 2-18 RS-485 Multi-drop Computer Connection
NOTE: Where the manufacturer's RS-232/RS-485 converter is used on a computer
connection, R1 is not applicable since it is built in to the converter.
Activity on the communications port lines is indicated via the TXD and RXD LEDs,
on the front panel and via the Status Information menu (see Chapter 6).
A full description of the communication protocols may be found in the C192PF8-
RPR and Modbus Communications Manuals provided with your instrument.