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© Sealevel Systems, Inc.
SeaI/O | SL9049 11/2021
580 Series
–
32 Optically Isolated Dry Contact Inputs
SeaI/O-580 modules provide 32 optically isolated dry contact inputs with 1500VAC RMS. Use the 580 to detect
contact between two externally wired field contact points. The 580 is ideal for no voltage monitoring applications
(alarm relays, HVAC controls, relays, de-mux boards, and control systems) where dry contacts are used to
indicate an Alarm condition, the rotation direction of a motor, etc.. Connection to real world signals is made via
convenient 3.5mm field removable screw terminal connectors.
Inputs
Type
32 non-polarized optically isolated dry contact inputs
Isolation
1500VAC RMS
Power
Power Input
9-30VDC via screw terminal, barrel plug, or SeaI/O
expansion RJ-45
Expansion Power
9-30VDC available via SeaI/O expansion RJ-45 connectors
for I/O expansion
Environmental
Operating Temperature
-40
C to +85
C (-40
F to 185
F)
Humidity
10% to 90% RH (non-condensing)
Mechanical
Dimensions
7.61”W X 1.375”H X 5.08”D
Dry Contact (no-voltage) Inputs detect a contact closure between two externally wired connections. The
Common terminals are all connected to one isolated ground on the 580E/580PoE board.