Description: Apple IIGS Adapter Cable: Pinouts
Header: Apple IIGS Adapter Cable: Pinouts


 This article last reviewed: 19 November 1986

  Mini-8     Function       DB-25

     1    HSKo --> DSR        6

     2    HSKi <-- DTR       20

     3    TXD- --> RXD        3

  +--4    SGND --- SGND       7
  |
  |  5    RXD- <-- TXD        2
  |
  |  6         NC             8
  |
  |  7    GPi* <-- RTS        4--+
  |                              |
  +--8         NC  CTS        5--+

     -    FGND NC  FGND       1-----+
                                    |
  Shield  o----------o     Shield---+

 Pins 4 and 8 are jumpered on the mini-8 side of the cable; pins 4 and 5 are
 jumpered on the DB-25 side of the cable as are pins 1 and the shield.

 To connect DB-25 cables of Apple II family peripheral cables to the serial
 ports of the Apple IIGS, use the Apple IIGS Peripheral Adapter Cable. This
 short cable's male mini-circular 8 connector plugs into the IIGS printer and
 phone serial ports with the female mini-circular 8 connectors on the back of
 the IIGS. The DB-25 connector at the other end of the adapter cable will take
 the DB-25 connectors of the DB-25 cables used with many Apple peripherals.

 Some modems and communications software may need a DCD signal and therefore
 may require a modem eliminator cable in the cable configuration. The modem
 eliminator cable flips pins 2 with 3 and 6 with 20 and passes GPi access
 through to pin 8. GPi, for General Purpose input, is a high or low signal
 read from and determined by the connecting device.



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