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Chapter 4 Signal Connections
DIO 6533 User Manual 4-2 © National Instruments Corporation
Figure 4-1. 6533 Device I/O Connector Pin Assignments
Note: In Figure 4-1, the * indicates that you can reverse the pin assignments of
the ACK1 (STARTTIG1) and REQ1 pins, or the ACK2 (STARTTIG2) and
REQ2 pins, with software. This can be useful when performing two-way
ACK/REQ handshaking between two 6533 devices over an SH68-68-D1 or
similar cable, because it allows you to connect one device’s ACK pin to the
+5 V
REQ1*
ACK1 (STARTTRIG1)*
STOPTRIG1
PCLK1
PCLK2
STOPTRIG2
ACK2 (STARTTRIG2)*
REQ2*
DIOA0
GND
DIOA3
DIOA4
GND
DIOA7
DIOB0
DIOB1
GND
RGND
GND
DIOB6
DIOB7
DIOC0
GND
DIOC3
DIOC4
GND
DIOC7
DIOD0
GND
DIOD3
DIOD4
GND
DIOD7
RGND
GND
DPULL
CPULL
GND
GND
RGND
GND
GND
DIOA1
DIOA2
GND
DIOA5
DIOA6
GND
GND
DIOB2
DIOB3
DIOB4
DIOB5
GND
RGND
DIOC1
DIOC2
GND
DIOC5
DIOC6
GND
DIOD1
DIOD2
GND
DIOD5
DIOD6
GND
135
236
337
438
539
640
741
842
943
10 44
11 45
12 46
13 47
14 48
15 49
16 50
17 51
18 52
19 53
20 54
21 55
22 56
23 57
24 58
25 59
26 60
27 61
28 62
29 63
30 64
31 65
32 66
33 67
34 68