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- A p p l i c a t i o n N O T E
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- Date: October 9, 1984 From: Chris Bradley
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- Product: IBM PC/AT Serial Adapter Cable
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- Following is a schematic diagram for the construction of a cable
- which connects the PC/AT's 9-pin serial I/O port to devices using
- a standard DB-25-pin connector:
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- AT Serial Name DB-25 connector
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- 1 CD 8
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- 2 RD 3
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- 3 TD 2
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- 4 DTR 20
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- 5 SG 7
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- 6 DSR 6
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- 7 RTS 4
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- 8 CTS 5
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- 9 RI 22
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- This table will allow construction of a serial cable for the AT,
- which has hitherto been difficult to obtain. Materials required
- for construction are:
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- o 9-wire cable stock (available in XXX-foot rolls)
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- o DB25 male connectors
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- o DB-9 male connectors
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- o a soldering pencil and solder
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- o a table vise
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