1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
3300/9300
rear terminal
1
5
6
9
PC Com 1
DB-9 Pin
Tx
Rx
Gnd
COM port
CAL
9300
Installation/Cabling
Installation/Cabling
1
RS-232
Is the standard most widely used for interfacing
peripherals to PC's and is designed for serial
communications with single instrument up to a distances
of 15 metres, in a low electrical noise environment.
Connection is via a screened two core cable where the
voltage signal on each line is referenced to the screen
which is grounded. Most PC's have one or two RS-232
compatible ports fitted as standard.
RS232 Connections
Port