Roland AT20s owner manual Connecting a Computer, Connection with an Apple Macintosh computer

Connecting with External Devices

■Connecting a Computer

The AT-20S provides a Computer connector. By connecting this to the serial port of your computer, you can transmit and receive musical data.

1.Turn off the AT-20S and the computer.

2.Use a computer cable (sold separately) to con- nect the Computer connector on the AT-20S to a serial port on the computer.

3.Set the Computer switch on the bottom of the unit to match the type of connected computer.

➔Take a look at the Connection Examples.

4.Turn on the computer.

5.Turn on the AT-20S.

6.Make the settings for baud rate (transmission speed) for the computer and the software.

➔For more information, refer to the documentation for the computer you are using.

7.You should also make the settings for the MIDI send channel (p. 96).

Connection Examples:

❍Connection with an Apple Macintosh computer

Use a computer cable (sold separately) to connect the Computer connector on the AT-20S to the modem port (or printer port) on the Apple Macintosh. Set the Computer switch to “Mac.”

Use “PatchBay” on the Apple Macintosh to set the interface type (the clock speed for the MIDI interface) to “1 MHz.”

Computer

Mac

PC-1

PC-2 MIDI

❍Connection with an IBM PC

Use a computer cable (sold separately) to connect the Computer connector on the AT-20S to the COM1 or COM2 serial port on the IBM PC. Set the Computer switch to “PC- 2.”

Computer

Mac

PC-1

PC-2 MIDI

99