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CLP-990 65
Connections
Type of serial cables and connection pin assignments
According to the type of computer you connect, use one of the following serial cables.
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)
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.)
8 (CTS)
7 (RTS)
2 (RxD)
5 (GND)
3 (TxD)
1
2
3
4
8
5
• 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)
mini DIN
8-pin
D-sub
9-pin
mini DIN
8-pin
2 (HSK i)
1 (HSK O)
5 (RxD-)
4 (GND)
3 (TxD-)
8 (RxD+)
7 (GP-)
6 (TxD+)
1
2
3
4
5
6
7
8
mini DIN
8-pin
• Macintosh
System peripheral plug → 8-pin plug
(Yamaha CCJ-MAC or equivalent)
mini DIN
8-pin
5 (CTS)
4 (RTS)
3 (RxD)
7 (GND)
2 (TxD)
1
2
3
4
8
5
D-sub
25-pin
• 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 8-pin D-sub 25-pin
Pin numbers (view from front)
D-sub 9-pin
1
1234567891011
14 15 16 17
45321
18 19 20 21 22 23 24 25
12 13
34
67
8
5
2
9876
• Pin assignment
The following diagram shows the pin assignments
for each cable.
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