Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 75)

FAQ Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 57
5.5. Communication Options
5.5.1. Communications Cables
Type Description
60A RS-232
Shielded, straight-through DB-9F to DB-25M cable, about 1.8 m long.
Used to interface with older computers or code activated switches with
DB-25 serial connectors.
60B RS-232
Shielded, straight-through DB-9F to DB-9F cable of about 1.8 m
length.
60C Ethernet
Patch cable, 2 meters long, used for Internet and LAN
communications.
60D USB
Cable for direct connection between instrument (rear panel USB port)
and PC or laptop computer.
5.5.2. RS-232 Multidrop (Option 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 (labeled
RS232
. It is subject to the distance limitations of the RS 232 standard.
The option consists of a small printed circuit assembly, which is seated on the analyzer’s CPU card (see
Figure 5-4) and is connected to the RS-232 and COM2 DB9 connectors 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).
For information on using and setting up this option (See Section 6.11.7)