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TTL I/O's
Standard 5V TTL (transistor-transistor logic) interface.
After power up, the TTL outputs are driven low — and they remain driven low until reconfigured from
the software interface. Whenever the TTL output is disconnected in the SW interface, it gets in driven
low status. TTL inputs are pulled up to 5V inside the camera to guarantee a stable input in case nothing is
connected. To generate a steep edge the TTL input driver should be capable of driving and sinking 10mA.
The TTL input's and output's logical state is understood as logical
1
when it's driven high (5V) and logical
0
when it's not driven (0V).
The TTL input lines are equipped with a debouncer to prevent generating unwanted input signals.
The delays listed in the table are setup dependent mean values, while the jitters are maximal deviations
(± ) from those mean values.
TTL input/output parameters summary
Parameter
Value
Operating voltage
ON voltage level
5V±10% (absolute maximum 6.5V)
> 3.5 V
OFF voltage level
< 1.5 V
High level output current
-32mA max / high level at 3.8V min
Low level output current
32mA max / low level at 0.55V max
Input to sensor trigger delay 19 µs (13/-2 µs)
TTL-in to TTL-out delay
32 µs (10/-2 µs)
Serial port interface
Standard RS232 communication interface, accessible directly from the camera's feature tree.
Configurable communication parameters are: baud rate, parity, data bits, stop bits.
