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k-Pack

RS-232 Modem Cable verification

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I have 2 - db9 male to db25 male, 850 to Hayes compatible modem cables. The pins are connected different on each. I'm thinking I know which one is wired correctly but need someone to help me feel confident about my decision.

 

These are the pin connections

 

850 R1: Gray cable Black cable

Pin# Pin# Pin#

1 20 6

2 8 8

3 2 2

4 3 3

5 7 7

6 6 20

7 4 4

8 5 5

 

The 6 and 20 pins on the modem side are reversed.

 

Any thoughts?

Edited by Pack007

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