Dalsa CALIBIR 640 GigE, Руководство пользователя

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84 • Technical Specifications Calibir 640 GigE IR Camera User's Manual
External Input Details
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Opto-coupled with internal current limit.
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Single input trigger threshold level
(TTL standard: <0.8V=Logical LOW, >2.4V=Logical HIGH. See lineDetectionLevel feature).
•
Used as trigger acquisition event, counter or timestamp event, or integration control.
•
User programmable debounce time from 0 to 255µs in 1µs steps.
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Source signal requirements:
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Single-ended driver meeting TTL, 12V, or 24V standards (see table below)
•
If using a differential signal driver, only one input can be used due to the shared input
common (see details below)
External Input DC Characteristics
Operating Specification Minimum Maximum
Input Voltage +3 V +36 V
Input Current 7 mA 10.1 mA
Input logic Low 0.8 V
Input logic High 2.4 V
Absolute Maximum Range before Possible Device Failure
Absolute Ratings Minimum Maximum
Input Voltage –36 Volts +36 Volts
External Input: Using TTL/LVTTL Drivers
•
External Input maximum current is limited by the Calibir circuits to a maximum of 8mA.
10 9
8 7
6 5
4 3
2 1
Camera IO
Interface
User IO
Power
Imax = 8mA
LVTTL / TTL
Push-Pull
Buffer
External Signal 0
(Common Ground)
( Input 0 )