Yamaha P-90 Owner's Manual - Page 46

1. Connecting the serial port on the computer to the P-90's [TO HOST] connector Connect the computer's serial port (RS-232C or RS-422) to the P-90's [TO HOST] connector. With this connection, the P-90 functions as a MIDI interface. Therefore, you do not need a special MIDI interface. Connection Use a special serial cable (page 46) to connect the computer's serial port (RS-232C or RS-422) to the P-90's [TO HOST] connector. P-90 HOST SELECT TO HOST MIDI Mac PC-2 PC-1 TO HOST Note for Windows users (regarding the MIDI driver) To transfer data via the computer's serial port and the P-90's [TO HOST] connector, you need to install a specific MIDI driver (the Yamaha CBX driver for Windows). You can download this driver from the following XG Library on the Yamaha web site: http://www.yamaha-xg.com RS-232C (D-sub 9-pin) RS-232C (D-sub 25-pin) modem port ENGLISH Windows Windows Macintosh Type of serial cables and connection pin assignments Depending on the type of computer you connect, use one of the following serial cables. Windows (with a serial port of D-sub 9-pin) 8-pin mini DIN plug ➝ D-sub 9-pin plug (Yamaha CCJ-PC2 or equivalent) Macintosh System peripheral plug ➝ 8-pin plug (Yamaha CCJ-MAC or equivalent) mini DIN 1 8-pin 2 3 4 8 5 8 (CTS) 7 (RTS) 2 (RxD) 5 (GND) D-sub 9-pin 3 (TxD) Windows (with a serial port of D-sub 25-pin) 8-pin mini DIN plug ➝ D-sub 25-pin plug (Yamaha CCJ-PC1NF or equivalent) mini DIN 1 8-pin 2 3 4 5 6 7 8 2 (HSK i) mini DIN 1 (HSK O) 8-pin 5 (RxD-) 4 (GND) 3 (TxD-) 8 (RxD+) 7 (GP-) 6 (TxD+) Pin assignment The following diagram shows the pin assignments for each cable. Pin numbers (view from front) mini DIN 8-pin D-sub 25-pin D-sub 9-pin mini DIN 1 8-pin 2 3 4 8 5 5 (CTS) 4 (RTS) 3 (RxD) 7 (GND) D-sub 25-pin 2 (TxD) 46 P-90 Connecting a Personal Computer