Black Box LGB5128A quick start Power Supply Sockets, Hardware Description, Page, blackbox.com

Chapter 3: Hardware Description

Figure 3-2. System Status LEDs on the front panel.

Table 3-2. System Status LEDs

LED	Color	Status
PWR AC	Green	Lights when power is on.
PWR DC	Green	Lights when power is on.
SYS	Green/ Amber	Blinks when system is booting.
		Lights when system is coming up.
ALARM	Red	Normally off; only system error will turn the light on.

3.4 Power Supply Sockets

There are dual power inputs on the front panel of the switch for power redundancy. The switch has a 100 to 240 VAC power socket for AC power Input and a -36 to -48 VDC power input via terminal block.

100 to 240-VAC	-36 VDC to -48 VDC
Power Input	Power Input

Figure 3-3. Power supply connectors.

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