66
Technical Reference
X64-AN Quad User's Manual
The following figure is a simplified drawing of one opto-coupler trigger input. Trigger signals
requirements are defined below.
650 ohm 1W
Anode +
Cathode -
Figure 36: Trigger Input Opto-coupler
Pin Number
Description
1
Input 1 Trigger Input (anode: E)
2
Input 2 Trigger Input (anode: E)
3
Input 3 Trigger Input (anode: E)
4
Input 4 Trigger Input (anode: E)
5 Ground
6
Input 1’s Trigger Input (cathode: Ext_Trig-)
7
Input 2’s Trigger Input (cathode: Ext_Trig-)
8
Input 3’s Trigger Input (cathode: Ext_Trig-)
9
Input 4’s Trigger Input (cathode: Ext_Trig-)
Shell Ground
Electrical
parameters
Description
Value
V
IL max
Maximum voltage difference to turn OFF
0.8 V
V
IH min
Minimum voltage difference to turn ON
2 V
I
I min
Minimum input current to turn ON
2 mA
I
I max
Maximum input current to turn ON
50 mA
t
I min
Minimum input pulse width to turn ON
10 us
V
f max
Maximum forward voltage
24 V
V
r max
Maximum reverse voltage
-25 V