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CHAPTER 3: INSTALLATION
3.7 ALARM RELAY AND GROUND
The alarm relay output contacts are in the middle of the DC terminal block connector as shown in the figure below.
The alarm relay out is “Normal Open,” and it will be closed when the switch detects any predefined failure such as power failures
or Ethernet link failures.
The relay output with current carrying capacity of 0.5A @ 24 VDC.
The switch must be properly grounded for optimum system performance.
PWR1
CONSOLE
RESET
+ – – +
+
ALM PWR2
GROUND CONNECTOR
ALARM SYSTEM
EXTRA POWER SYSTEM
FIGURE 3-9. ALARM RELAY AND GROUND
3.8 SYSTEM RESET
The Reset button is provided to reboot the system without the need to remove power. Under normal circumstances, you will not
have to use it. However, on rare occasions, the switch may not respond; then you may need to push the Reset button.
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