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Optional Hardware and Software M400E Ozone Analyzer Operator’s Manual
5.7. COMMUNICATION OPTIONS
5.7.1. EXTRA COMM CABLES
5.7.1.1. RS232 Modem Cables (OPTs 60A and 60B)
OPTION 60A
A shielded, straight-through serial cable of about 1.8 m length to connect the analyzer’s COM1 port to a
computer, a code activated switch or any other communications device that is equipped with a DB-25 female
connector. The cable is terminated with one DB-9 female connector and one DB-25 male connector. The DB-9
connector fits the analyzer’s RS-232 port.
OPTION 60B
A standard, shielded, straight-through DB-9F to DB-9F cable of about 1.8 m length, which should fit most
computers of recent build. The M400E analyzer is shipped with one of these cables included.
5.7.1.2. ETHERNET Cable (OPT 60C)
A seven-foot long, CAT-5 network cable, terminated at both ends with standard RJ-45 connectors. This cable is
used to connect the M400E to any standard ETHERNET socket.
5.7.2. RS-232 MULTIDROP (OPT 62)
The multidrop option is used with any of the RS-232 serial ports to enable communications of up to eight
analyzers with the host computer over a chain of RS-232 cables via the instruments COM1 Port. It is subject to
the distance limitations of the RS 232 standard.
Rear Panel
(as seen from inside)
CPU Card
Multidrop
Card
Figure 5-7: M400E Multidrop Card
The option consists of a small printed circuit assembly, which is plugs into to the analyzer’s CPU card (see
Figure 5-7) and is connected to the RS-232 and COM2 DB9 conn
ectors on the instrument’s back panel via a
cable to the motherboard.
One option 62 is required for each analyzer along with one 6’ straight-through, DB9 male DB9 Female cable
(P/N WR0000101).
54 04315 Rev. C1