Rs-232 pin configuration – Honeywell DOLPHIN 9951 User Manual

Page 131

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RS-232 Pin Configuration

Refer to this table if you want to make your own cables.

To do so, you must determine if your host RS-232 device is:

• 9-pin or 25-pin and
• configured as a DCE or DTE device.

Base/Host Port (DCE)

IBM AT DB9
(DTE)

IBM XT DB25
(DTE)

Modem DB25
(DCE)

Pin / Input Signal

2 / (RD)

2

3

2

3 / (TD)

3

2

3

5 / (SG)

5

7

7

4 / (DTR)

4

20

6

6 / (DSR)

6

6

20

7 / (RTS)

7

4

5

8 / (CTS)

8

5

4

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