Digital Event/Timer/Counter
Event Inputs
Number of event inputs 16 per card, 2 cards per connector
Levels TTL Compatible, Low
-
30 V to 0.7 V, High 2 V to
30 V
“1”
“0”
Logic value
Input voltage
-30
+0.7 +2
+30
Figure 7.20:
Logic threshold voltage levels
Overvoltage protection
±
30 V DC
Timer/Counter
Number of channels Two per card, two cards per connector
Functions See specifications of the acquisition cards that
support these inputs
Outputs
Number of outputs Two per card, two cards per connector
Functions See specifications of acquisition cards that support
these outputs
Output levels TTL compatible; 0 V < Low < 0.6V; 2 V < High <
5 V
Output resistance 49.9 Ω
±
1%
Maximum output current 50 mA, short circuit protected
GEN3t
108
I3995-3.1 en HBM: public