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
Continued on next page
| 15 |
