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Vitec Group Communications
Eclipse Median Instruction Manual
5 - 2 0
Figure 5-14: Non-Isolated Connection to Eclipse Median GPI Connec-
tor
To cause an input to detect an active signal, you must send current
from the relevant input pin.
The external device should draw no current to cause an inactive input
and at least 5 mA to cause an active input. The opto-isolator drive line
contains a 1.5 kOhm resistor to limit the current through the
opto-isolator. You can therefore connect the input pins directly to a
ground pin to cause an active input.
The voltage level at the external input pin should not be allowed to go
below ground or above +6 V with respect to ground.
INPUT 1
EXTERNAL INPUT 2
INPUT 2
R29 1.5K
R30 1.5K
U
MOCD207-M
1
3
2
4
8
7
6
5
EXTERNAL INPUT 1
R
33K2
+3V3
R
33K2
+3V3
+3V3