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Chapter 5
For more detailed information about the SC-206X Series boards, see Chapter 2, SC-2060 Board,
Chapter 3, SC-2061 Board, or Chapter 4, SC-2062 Board.
A 26-pin ribbon cable (type SC1) connects your SC-206X Series board to an SC-205X Series board.
Remember to turn the computer or any other device off before making any connections. One end of
the ribbon cable connects to the SC-206X Series board at connector J1.
Figure 5-7 shows the pinouts for cable connector J1 on your SC-206X Series boards.
Pins
9, 11, 13, 15,
17, 19, 21, 23
1, 3, 5 ,7, 25
2, 4, 6, 8, 10,
12, 14, 16, 18,
20, 22, 24, 26
Connector J1 is for connection only to an SC-205X Series board at a 26-pin connector labeled Digital
I/O (see Table 5-2). Incorrect connection can result in damage to the SC-206X Series board and all
components connected to the SC-206X Series board, including the host computer. Remember to turn
the host computer off before making any connections. For further information concerning the signal
connections on the SC-205X Series cable adapter boards, consult your SC-205X Series User Manual.
© National Instruments Corporation
+5 V
+5 V
+5 V
+5 V
DIO7
DIO6
DIO5
DIO4
DIO3
DIO2
DIO1
DIO0
+5 V
Figure 5-7. Pinout for I/O Connector J1
Signal Names
DIO<0..7>
+5 V
GND
1
2
GND
3
4
GND
5
6
GND
7
8
GND
9
10
GND
11
12
GND
13
14
GND
15
16
GND
17
18
GND
19
20
GND
21
22
GND
23
24
GND
GND
25 26
Description
Digital data lines–DIO7 is the most significant bit;
DIO0 is the least significant bit.
Power from host computer–When you set switch S1 to the
position labeled INT, these pins are connected to power
connections on the SC-206X Series. When you set switch
S1 to the position labeled EXT, these pins are
disconnected from parts on the SC-206X Series.
Ground–These pins are connected to the ground
signal of the SC-206X Series board.
5-7
Installation and Operation
SC-206X Series User Manual
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