MultiExact Gas Analyser
Appendix
A1
RS232 CONNECTION DETAILS
WARNING
Ensure that the electrical installation of any equipment connected to
the analyser conforms with all applicable local and national electrical
safety requirements.
WARNING
The RS232 output is separated from the analyser mains circuits by
reinforced insulation. The terminals must only be connected to
circuits that are themselves separated from mains voltages by at
least reinforced insulation.
CAUTION
To comply with EMC requirements, you must use a screened cable to
connect to the RS232 output. The screen must also be connected to the
analyser enclosure.
A1.1 Overview
The serial port on the MultiExact can be used to output measurement and status data
and to transfer configurations to and from other MultiExact units.
The serial port on the rear of the analyser (Figure 2, item 19) is an RS232 ± 5.5 V
9-way 'D' type connector.
Pin(s)
Use
1
Not used
2
Rx (to the analyser)
3
Tx (from the analyser)
4
Not used
5
0 V
6, 7, 8, 9
Not used
Figure A1 – RS232 connection pin details
1 2 3 4 5
6 7 8 9
05410001A / Revision 6
97