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Connections
Type of serial cables and connection pin assignments
According to 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
(Yamaha CCJ-PC2 or equivalent)
mini DIN
1
2
8-pin
3
4
8
5
• Windows (with a serial port of D-sub 25-pin)
8-pin mini DIN plug
(Yamaha CCJ-PC1NF or equivalent)
mini DIN
1
2
8-pin
3
4
8
5
Clavinova HOST SELECT switch setting
Set the Clavinova HOST SELECT switch properly according to the type of connected computer.
• Macintosh: "Mac" (data transfer rate: 31,250bps, 1MHz clock)
• Windows: "PC-2" (data transfer rate: 38,400bps)
TIP
If your system does not 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 proper data transfer rate. (Data
transfer rate of "PC-1" is 31,250bps.)
60
CLP-970A
D-sub 9-pin plug
8 (CTS)
D-sub
7 (RTS)
9-pin
2 (RxD)
5 (GND)
3 (TxD)
D-sub 25-pin plug
5 (CTS)
D-sub
4 (RTS)
25-pin
3 (RxD)
7 (GND)
2 (TxD)
• Macintosh
System peripheral plug
8-pin plug
(Yamaha CCJ-MAC or equivalent)
mini DIN
1
2
8-pin
3
4
5
6
7
8
• 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
6 7 8
1 2 3 4 5 6 7 8 9 10 11
3 4
5
14 15 16 17
18 19 20 21 22 23 24 25
1
2
mini DIN
2 (HSK i)
1 (HSK O)
8-pin
5 (RxD-)
4 (GND)
3 (TxD-)
8 (RxD+)
7 (GP-)
6 (TxD+)
D-sub 9-pin
12 13
5
4
3 2 1
9 8 7 6
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