Teledyne GFC-7001E - Trace CO Analyzer User Manual

Page 163

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Remote Operation

Model GFC7001E Carbon Dioxide Analyzer

Teledyne Analytical Instruments

163

Female DB-9 (COM2)

(As seen from outside analyzer)









(RS-485)

1

2

3

4

5

6

7

8

9

GND

RX/TX

+

RX/TX

-

Figure 8-6:

Back Panel Connector Pin-Outs for COM2 in RS-485 Mode.

The signal from this connector is routed from the motherboard via a wiring harness to a 3-pin connector on the
CPU card, J15.

Figure 8-7:

CPU Connector Pin-Outs for COM2 in RS-485 Mode

NOTE

The DCE/DTE switch has no effect on COM2.

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