UMI Accessory User Guide — UMI-4A
18
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Figure 21 shows the 34-pin Opto 22 compatible connector.
Figure 21.
34-Pin Opto 22 Compatible Connector Pin Assignment
Power Input Terminal Block
The UMI-4A has a 4-position terminal block for wiring power to the unit.
Refer to Figure 12 to help you locate the power input terminal block on
your UMI-4A accessory. Figure 11 shows the 4-position terminal block
pinout.
Figure 22.
4-Position Power Input Terminal Block Pin Assignment
Note
To properly operate your UMI-4A accessory, you must supply a +5 V source to the
power input terminal block.
Note
The auxiliary VDC input on the power input terminal block is optional and is
redistributed to other terminal blocks as an output power source.
N/C
I/O Bit 1
I/O Bit 2
I/O Bit 3
I/O Bit 4
I/O Bit 5
I/O Bit 6
I/O Bit 7
I/O Bit 8
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
Digital Ground
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
9
10
7
8
5
6
3
4
1
2
1
2
3
4
+5 V
Aux. VDC
NC
Digital Ground
Summary of Contents for UMI-4A
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