# Apple 300/1200 Modem

9 PIN D-SUB CONNECTOR

Pin | Name | Description
--- | --- | ---
1 | n/c | Not connected
2 | DSR | Data Set Ready
3 | GND | Ground
4 | n/c | Not connected
5 | RxD | Receive Data
6 | DTR | Data Terminal Ready
7 | DCD | Output from modem
8 | GND | Ground
9 | TxD | Transmit Data

Contributor: Joakim Ögren

Source:
Technote HW19: Pinouts at Apple Technical Notes

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Document last modified: 2000-07-09