Pin Layout
All GPIs and GPOs available on OptoTrigger 5 are mapped to the two SUB D15 sockets (Port A and Port B). They have the following indices:
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Pin # | Signal Name | Signal Name |
1 | Trigger Output 0 Port A
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Trigger Output 4 Port B |
2 | Trigger Output 1 Port A | Trigger Output 5 Port B |
3 | Trigger Output 2 Port A | Trigger Output 6 Port B
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4 | Trigger Output 3 Port A
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Trigger Output 7 Port B
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5 | V_IN (VCC Input Port A) | V_IN (VCC Input Port B) |
6 | GND Port A | GND Port B |
7 | nc | nc |
8 | nc | nc |
9 | nc | nc |
10 | V_IN (VCC Input Port A) | V_IN (VCC Input Port B) |
11 | Trigger Input 0 Port A (+ if used for diff. signal) |
Trigger Input 4 Port B (+ if used for diff. signal) |
12 | Trigger Input 1 Port A (- if used for diff. signal) |
Trigger Input 5 Port B (- if used for diff. signal) |
13 | Trigger Input 2 Port A (+ if used for diff. signal) |
Trigger Input 6 Port B (+ if used for diff. signal) |
14 | Trigger Input 3 Port A (- if used for diff. signal) |
Trigger Input 7 Port B (- if used for diff. signal) |
15 | GND Port A | GND Port B |
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Powering Opto Trigger 5 |
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The power must be delivered by an external power source. |
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IN Signals on Opto Trigger 5 |
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The input signals are not directly passed to the opto couplers but send to differential comparators. The advantage is that the input accepts low current, voltage driven signals between 5 and 25V. (Input signals can have pull up or a pull down resistor of 10k Ohm). The polarity of the input signals is NOT inverted. |
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OUT Signals on Opto Trigger 5 |
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On Opto Trigger 5, the opto-couplers do not directly connect to the output, but are buffered by MOSFET transistors. These transistors build an easy-to-use open collector driver with a 20 mA static current diode as pull-up. |