Chapter 1 Product Overview
Front Panel
Alarm LEDs
Table
Table | Alarm OUT Status LED |
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Color | System Status |
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Off | Alarm OUT is not configured, or the switch is off. |
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Green | Alarm OUT is configured, no alarm detected. |
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Blinking red | Switch has detected a major alarm. |
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Red | Switch has detected a minor alarm. |
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Table | Alarm IN1 and IN2 Status LEDs |
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Color | System Status |
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Off | Alarm IN1 or IN2 not configured. |
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Green | Alarm IN1 or IN2 configured, no alarm detected. |
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Blinking red | Major alarm detected. |
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Red | Minor alarm detected. |
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Power Status LEDs
The switch can operate with one or two DC power sources. Each DC input has an associated LED that shows the status of the corresponding DC input. If power is present on the circuit, the LED is green. If power is not present, the LED color depends on the alarm configuration. If alarms are configured, the LED is red when power is not present; otherwise, the LED is off.
If the switch has dual power sources, the switch draws power from the power source with the higher voltage. If one of the DC sources fails, the alternate DC source powers the switch, and the corresponding power status LED is green. The power status for the failed DC source is either off or red, depending on the alarm configuration.
Table
Table | Power Status LEDs |
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Color | System Status |
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Green | Power is present on the associated circuit, system is operating normally. |
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Off | Power is not present on the circuit, or the system is not powered up. |
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Red | Power is not present on the associated circuit, and the power supply alarm is configured. |
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Note The Power A and Power B LEDs show that power is not present on the switch if the power input drops below the low valid level. The power status LEDs only show that power is present if the voltage at the switch input exceeds the valid level.
For information about the power LED colors during the boot fast sequence, see the “Verifying Switch Operation” section on page
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