D-Link xStack Hardware Installation Manual page 22

Dgs-3420 series layer 2+ managed stackable gigabit switch
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xStack® DGS-3420 Series Layer 2+ Managed Stackable Gigabit Switch Hardware Installation Reference Guide
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Connect the alarm input pins to alarm output terminals on other pieces of equipment.
Connect the alarm output pins to alarm input terminals on other pieces of equipment.
Figure 2–4 Alarm Connector
Alarm Connector Port
Output. Normal Closed Pin. (42VAC or 60VDC)
Output. Common Pin. (42VAC or 60VDC)
Output. Normal Open Pin. (42VAC or 60VDC)
Input 2
Input 2
Input 1
Input 1
Description
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