User manual

Rev Australasia V2.3 12/04

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The table below shows how the cables should connect from one end to the other.

Electronic Circuit Board Military

Connector

9 pin D Connector

Transmit (TxD) Pin A Pin 2

Receive (RxD) Pin B Pin 3

Signal Ground (GND) Pin D Pin 5

Pin C (not used)

You can test these connections using the Multi-meter.

On the dial of the meter select the Ω

cale. If your meter has an audible

beeper, select that setting, if not select the

lowest value in the scale.

Insert the test leads into the meter, the

Black lead connects to the COM socket

and the Red lead connects to the socket

showing the Ω Omega symbol.

To see how the meter should

work – touch the two test leads

together and you will hear the

beeper sound (if your meter has a

beeper) and the screen, or dial

will go from open circuit to short

circuit (zero ohms).

Twist a paper clip around the end

of one test lead. Then insert the

paper clip into Pin 2 on the D connector. From the table above, you can see that Pin 2