Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 133)

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 115
4. Connect a cable between the Multidrop/LVDS card J4 and the motherboard P12.
5. Connect a cable between the Multidrop/LVDS card J3 and the CPU COM1 connector.
6. Close the instrument.
7. Using straight-through, DB9 male  DB9 Female cable, interconnect the host and the analyzers
as shown in Figure 6-14.
8. BEFORE communicating from the host, power on the instruments and check that the Machine ID
code is unique for each (see Section Analyzer ID). On the front panel menu, use
SETUP>MORE>COMM>ID. Note that the default ID is typically the model number; to change the
4-digit identification number, press the button of the digit to be changed)..
NOTE:
Teledyne Instruments recommends setting up the first link, between the Host and
the first analyzer and testing it before setting up the rest of the chain.
Analyzer Analyzer Analyzer Last Analyzer
Female DB9
Male DB9
RS-232
COM2
RS-232
COM2
RS-232
COM2
RS-232
COM2
Host
RS-232 port
Make Sure
Jumper between
JP2 pins 21

22
is installed.
KEY:
Figure 6-10: RS232-Multidrop PCA Host/Analyzer Interconnect Diagram