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Internal Modem

The Power Macintosh G3 computer includes an option for an internal modem. The modem interface to the main logic board is a 70-pin connector. The external I/O connector for the modem is an RJ-11 connector located on the back of the computer. The modem has the following features:

• modem bit rates up to 56 Kbps (supports K56flex, V.34, and V.90 protocols)
• fax modem bit rates up to 14.4 Kbps

The modem appears to the system as a serial port that responds to the typical AT commands. The modem provides a sound output for monitoring the progress of the modem connection.

Note

This developer note does not provide the electrical or mechanical specifications for the 70-pin modem interface to the main logic board.