ADLINK EOS-1200 - Manual (Page 36)

24 Introduction
Reducing DI channel Forward Current for High Voltage
As input voltage increases above 5 V, the input current drawn
by the EOS-1200 (forward current If) rises commensurately. At
24 V, for example, current per line is determined by the for-
mula:
(24V- 0.5V)/2.4Kohm = 9.79 mA
Computer
Ground
10 k Ÿ
+3.3V
Digital Logic
Isolated
Ground
L
oad
2.4 k Ÿ
EOS-1200
DI
ISO_COM
Supply