# Apple Duo Dock Modem Adapter Card

10 PIN UNKNOWN CONNECTOR

Pin | Name | Description
--- | --- | ---
1 | LINET/R | Line/talk receive
2 | DAA GND | Modem DAA ground
3 | DAA GND | Modem DAA ground
4 | DAA GND | Modem DAA ground
5 | /RA DVR | Modem relay A driver
6 | DAA ID IN | ID input
7 | /RING3 DET | Ring detect signal
8 | /RBDVR | Modem relay B driver
9 | DAA CNTL | Modem DAA control
10 | +5 V MODEM | +5 V power

When the PowerBook Duo computer is housed in the Duo Dock, you cannot access the integral modem via the RJ-11 connector on the PowerBook Duo's rear panel. A modem adapter card provides the connection. It plugs into the side of the Duo Dock's main logic board, using a 10-pin header connector. The card supplies the RJ-11 hook up, which is accessed on the rear panel of the Duo Dock. The adapter card interfaces with the modem card in the PowerBook Duo computer via its 10-pin connector, printed circuit traces, and the 152-pin expansion connector.

Contributor: Joakim Ögren

Source:
Apple Tech Info Library 12929: Duo Dock/Duo Dock II, External Pinouts at Apple TIL homepage

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