Transition Networks SISTP10XX-141-LR(T) Connecting an alarm fixture, Alarm Relay Contacts

SISTP10xx-141-LR(T) Industrial PoE Switch Transition Networks

Connecting an alarm fixture

Alarm relay	The Industrial PoE Switch has dry relay contacts for connecting an external alarm fixture.
	Located on the green terminal block on the top panel, the relay has “normally open” contacts
	that can be wired to form a circuit for triggering an external alarm when a fault occurs (light or
	audible alarm). See Figure 11.
	Note: Normally open contacts are contacts that form an open circuit when there is a loss of
	power to the device or when a fault occurs. Once power is applied to the Industrial
	PoE Switch, the contacts will be closed and current will flow through the contacts.

		Alarm Relay Contacts
	Figure 11: Alarm Relay Contacts
Alarm relay	To wire an alarm to the relay contacts, do the following:
wiring
	Step	Action
	1.	Verify that the external power source is turned OFF.
	2.	Strip the wires as required.
	3.	Wire the alarm relay as shown in Figure 12.

Figure 12: Alarm Relay Wiring

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