User guide

Trigger Inputs: Each J6 cable is arranged in the following order.
The inputs to the DR-50s are optisolated. You must provide a 12 to
24 VDC voltage to pins 10, 20, 30 and 40 of each cable. To protect
the DR-50s from spikes on these connections, we reccomend an iso-
lated power supply should be used for these connections. Any small
12 to 24 VDC power supply with a current capacity of about 1/2
amp (500 ma) will work fine.
The first connector covers the first sixteen DR-50s.
The second connector is for cards seventeen through thirty-two.
wire numbercolor wire function
1 brown circuit ground (no connection)
2 red channel 0 data bit 7 (Card 4 Stop)
3 orange channel 0 data bit 6 (Card 4 Start)
4 yellow channel 0 data bit 5 (Card 3 Stop)
5 green channel 0 data bit 4 (Card 3 Start)
6 blue channel 0 data bit 3 (Card 2 Stop)
7 violet channel 0 data bit 2 (Card 2 Start)
8 gray channel 0 data bit 1 (Card 1 Stop)
9 white channel 0 data bit 0 (Card 1 Start)
10 black + unregulated power supply
11 brown circuit ground (no connection)
12 red channel 1 data bit 7 (Card 8 Stop)
13 orange channel 1 data bit 6 (Card 8 Start)
14 yellow channel 1 data bit 5 (Card 7 Stop)
15 green channel 1 data bit 4 (Card 7 Start)
16 blue channel 1 data bit 3 (Card 6 Stop)
17 violet channel 1 data bit 2 (Card 6 Start)
18 gray channel 1 data bit 1 (Card 5 Stop)
19 white channel 1 data bit 0 (Card 5 Start)
20 black + unregulated power supply
21 brown circuit ground (no connection)
22 red channel 2 data bit 7 (Card 12 Stop)
23 orange channel 2 data bit 6 (Card 12 Start)
24 yellow channel 2 data bit 5 (Card 11 Stop)
25 green channel 2 data bit 4 (Card 11 Start)
26 blue channel 2 data bit 3 (Card 10 Stop)
27 violet channel 2 data bit 2 (Card 10 Start)
28 gray channel 2 data bit 1 (Card 9 Stop)
29 white channel 2 data bit 0 (Card 9 Start)
30 black + unregulated power supply
31 brown circuit ground (no connection)
32 red channel 3 data bit 7 (Card 16 Stop)
33 orange channel 3 data bit 6 (Card 16 Start)
34 yellow channel 3 data bit 5 (Card 15 Stop)
35 green channel 3 data bit 4 (Card 15 Start)
36 blue channel 3 data bit 3 (Card 14 Stop)
37 violet channel 3 data bit 2 (Card 14 Start)
38 gray channel 3 data bit 1 (Card 13 Stop)
39 white channel 3 data bit 0 (Card 13 Start)
40 black + unregulated power supply
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