TITLE
    Mini DIN-8: Serial pinouts for Hayes modems
Article ID:
Author:
Created:
Modified: 		1780

3/3/86
9/20/99
TOPIC

    What are the cable pinouts for a Macintosh Plus or later connected to a Hayes modem (Mini DIN-8 to DB-25)?

DISCUSSION

    Signal Direction Din-8 Connector Hayes DCE Connector Signal Direction
    HSKo Out 1 6 DSR In
    (DTR) 20 DTR In
    HSKi In 2 8 DCD Out
    (CTS) 5 CTS Out
    TxD- Out 3 2 TxD Out
    Gnd 4 1 Gnd
    8 7
    RxD- In 5 3 RxD In
    6 No connect
    7 No connect



    Connect pins:

    1. Macintosh side of cable: 4 and 8

    2. Hayes side of cable:

    a. 6 and 20
    b. 8 and 5
    c. 1 and 7

    The pins on the male end of the circular Mini DIN-8 connector are numbered as shown:

    6 7 8
    3 4 5
    1 2

    You could also use the Apple II Printer - Mini DIN-8 Cable (part number 590-0556 or 590-0335), although the pinouts are slightly different.

    Below are the pinouts for connecting the Hayes V series 9600 baud modems to the Macintosh with a DIN-8 serial port, direct from Hayes:

    Hayes 9600 V Macintosh
    1-7 4-8
    2 3
    3 5
    5 2
    4 1

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