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ELYRA 7
Specification of Trigger-Interface
ZEISS
03/2019 V_02
000000-2262-999
11
Type/Voltage Range:
−
TTL signal level 3.3 V, CMOS low power consumption
−
5.0 V tolerant input/output for interfacing with 5 V logic
Load:
Output:
< 50 mA (internal serial 68 ohm resistor)
Input:
4.7 kOhm input impedance (internal 4.7 kOhm pullup to 3.3 V)
Trigger pulse description:
Signal output:
−
Low level < 0.4 V, high level > 2.4 V (I = 10 mA)
−
Slew rate 10 ns/V
−
Reaction time trigger OUT 8 msec typical
Signal input:
−
Low level <0.5 … 0.8 V, high level >2.0 … 5.5 V
−
Falling edge force interrupt
−
Pulse width to detect signal > 50 ns
−
Reaction time trigger IN 16 msec typical
Caution:
−
Never apply more than 5 V or negative voltages to avoid any damage.
−
In and outputs are not galvanically decoupled.
−
Therefore proper measures for galvanic decoupling of external devices have to be taken (opto-
coupler etc.).