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2 class a (style z) -14, 2 cmd2 input circuit -14, 2 cmd2 input circuit – SilentKnight SKE-450 Voice Evacuation Control Panel User Manual

Page 24: 2 class a (style z)

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SKE-Series Voice Evacuation System Installation/Operation Manual

3-14

151267

3.7.1.2

Class A (Style Z)

Figure 3-11 illustrates how to wire a Class A (Style Z) input circuit to CMD1 input.

Figure 3-11 Class A (Style Z) CMD1 Input Circuit Configuration

3.7.2

CMD2 Input Circuit

This section describes how to connect a normally open alarm contact, such as a pull station, to
the CMD2 terminals on the SKE-450. See Figure 3-12. CMD 2 input rated for 24 VDC @ 3
mA.

Figure 3-12 CMD2 Alarm Contact Input Connections

Supervised by FACP

Power Limited if NAC

outputs from FACP are

Power Limited

If a trouble condition exists on
the SKE-450, the supervision
circuit is opened in addition to
energizing the trouble relay
causing a trouble at the FACP.

Supervised

Power Limited

15 k

Ω EOL

UL Listed

Model 7630

If a trouble condition exists on the SKE-450, the trouble relay
will energize, which is used by the FACP.