SMC Networks SMC7824M/ESW manual DC Plug Connections

INSTALLING THE SWITCH

-48VDC/Ground (Source A)

Return/24VDC (Source A)

-48VDC/Ground (Source B)

Return/24VDC (Source B)

Figure 3-7 DC Plug Connections

7.Push each wire about half an inch into the opening on the plug, and tighten down the clamp screw securely. You should not be able to pull on the wire and dislodge it.

8.Insert the power plug in the power receptacle on the left side of the front panel.

9.At the power source, turn on the power for the feed lines or power bus.

10.After the power source is tuned on, set the power button on the front of the power conversion module to the ON position (marked “–”).

11.Check the indicators on the power conversion module as the switch is powered on to verify that the -48V LED indicating external power status is on, and that the +12V LED indicating internal power conversion is on. If not, recheck the power supply and power cable connections at the supply source and at power conversion module.

12.If you have installed both a primary and redundant power conversion module, verify that the LEDs on both modules are lit as indicated in the preceding step.

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