18
P o w e r & C o n n e c t i o n s
● Connecting to an NEC PC-9801/9821 Series Computer
The NEC PC-9801/9821 computers are widely used in
Japan. Connect the TO HOST connector of the QY70 to the RS-
232C port on your NEC computer, using a standard 8-pin MINI
DIN → 25-pin D-SUB cross cable. Set the HOST SELECT switch
to the “PC-1” position if you use Windows3.1, and to the “PC-2”
position if you use Windows95.
Refer to your software owner’s manual for information on
any settings you might have to make on the computer side.
“PC-1” Cable Connections
• 8-pin mini DIN
→
25-pin D-SUB cable. Use a “PC-2” type cable if your
computer uses a 9-pin serial port.
• Data transfer rate: 31,250 bps.
■
NOTE
• If your system doesn’t work properly with the connections and settings
listed above, your software may require different settings. Check your
software operation manual and set the HOST SELECT switch to the
position provides the appropriate data transfer rate.
• If you use Windows95 or Windows3.1 in your computer, the appropri-
ate “MIDI driver” needs to be installed. See page 19 for details.
MINI DIN
8-PIN
D-SUB
25-PIN
5 (CTS)1
4 (RTS)2
3 (RxD)3
4 7 (GND)
8
2 (TxD) 5
RS-232C
port
TO HOST
connector