USB-DIO24/37 User's Guide
Specifications
13
Mechanical
Table 7. Mechanical specifications
Parameter
Specification
Dimensions (L × W × H)
119 mm × 84 mm × 14 mm (4.69 × 3.31 × 0.55 in.)
USB cable length
3 m (9.84 ft) max
USB cable type
A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND, min
28 AWG D+/D-)
Main connector and pinout
Table 8. Connector specifications
Parameter
Specification
Connector type
37-pin D-type
Compatible cables
C37FF-x unshielded ribbon cable. x = length in feet.
Table 9. Connector pinout
Pin
Signal Name
Pin
Signal Name
1
CTR
20
+5
2
NC
21
GND
3
Port B Bit 7
22
Port C Bit 7
4
Port B Bit 6
23
Port C Bit 6
5
Port B Bit 5
24
Port C Bit 5
6
Port B Bit 4
25
Port C Bit 4
7
Port B Bit 3
26
Port C Bit 3
8
Port B Bit 2
27
Port C Bit 2
9
Port B Bit 1
28
Port C Bit 1
10
Port B Bit 0
29
Port C Bit 0
11
GND
30
Port A Bit 7
12
NC
31
Port A Bit 6
13
GND
32
Port A Bit 5
14
NC
33
Port A Bit 4
15
GND
34
Port A Bit 3
16
NC
35
Port A Bit 2
17
GND
36
Port A Bit 1
18
+5
37
Port A Bit 0
19
GND
