Allied Telesis AT-X510DP-52GTX manual +48 VDC Positive Ground VDC Negative Terminal

Chapter 4: Installing the Switch and its Power Supplies

as this equipment.

ˆSwitching or disconnecting devices shall not be in the earthed circuit conductor between the DC source and the point of connection of the earthing electrode conductor.  E55

Warning

Enough wiring space is required to allow the conductors to be introduced and connected easily.  E56

To power on a switch with a DC AT-PWR250R-80 Power Supply Module, review the essential safety information above and perform the following procedure:

1.Power off the DC circuit to be used for the chassis.

2.Verify that the On/Off switch on the DC AT-PWR250R-80 Module is in the Off position.

3.Use the legend above the terminal block to identify the terminals. The terminals are positive, power supply ground and negative, from left to right, as shown in Figure 32 on page 70.

A	40-60VDC		DC OUT	A
				CONNECTION, INSTALL ONLY IN
	6A		FAULT
AT-PWR250R	+	-	FOR CENTRALIZED DCPOWER
		ON
		OFF
A
			2205
+48 VDC Positive	Ground		-48 VDC Negative
Terminal	Terminal		Terminal

Figure 32. DC Terminal Block on the DC AT-PWR250R-80 Power Supply

Module

70