GE iBox Installation And Maintenance Manual page 52

iBox/iBox Kit
Installation and Maintenance Guide
Digital Inputs
Digital Inputs The iBox has eight digital inputs (DIs).
Wetting Types All DIs require an input voltage signal large enough to turn on an optical switch. If
the DI is receiving a sufficient wetting voltage, the green LED associated with the DI
will light.
Digital Input The following table shows the iBox's ON and OFF state thresholds. Verify that
Thresholds inputs do not exceed the maximum overload voltage; otherwise, the iBox may be
damaged.
Digital Input
Options
110/125 VDC
52
On Threshold
Low Voltage Digital Input
24 VDC >14 VDC
48 VDC >28 VDC
High Voltage Digital Input
>80 VDC
994-0047-5.10-4
Off Threshold Max Overload Voltage
<5 VDC 24 VDC + 20%
<10 VDC 48 VDC + 20%
<20 VDC 125 VDC + 20%
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