# HP48/HP95

      +---------+
      | . . . . |   (at the Calculator)
      \---------/
        1 2 3 4

Pin | Name | Dir | Description
--- | --- | --- | ---
1 | - | - | -
2 | TXD | OUT | Transmit Data
3 | RXD | IN | Receive Data
4 | GND | - | Ground

Contributor: Joakim Ögren

Source:
?

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2000-07-09