Juniper Networks M5, M10 manual 107

Replace Power System Components

9.Thread the power cables through the hook located on the faceplate to the right of the quick-connect terminals.

10.Insert the exposed end of each power cable straight into the appropriate quick-connect terminal:

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Insert the positive (+) source cable into the return terminal, which is labeled RTN.

Insert the negative (–) source cable into the input terminal, which is labeled –48V.

11.Using a 3-mm flat-blade screwdriver, turn the screw on each quick-connect terminal clockwise to tighten the terminal connector around the cable.

12.Verify that the DC source power cabling and the grounding cabling are correct, that they are not touching or blocking access to router components, and that they do not drape where people could trip on them.

13.Turn on the DC power source so that voltage flows to the power supply.

14.Press the switch on the power supply faceplate to the ON ( ) position and engage the safety interlock lever below the power switch.Verify that the blue OUTPUT OK LED eventually lights steadily.

After powering off a power supply, wait at least 60 seconds before turning it back on. After powering on a power supply, wait at least 60 seconds before turning it off.

If the router is completely powered down when you power on the power supply, the Routing Engine boots as the power supply completes its startup sequence. If the Routing Engine finishes booting and you need to power down the router again, first issue the CLI request system halt command. For more information, see “Disconnect AC Power from the Router” on page 102 or “Disconnect DC Power from the Router” on page 109.

After a power supply is powered on, it can take up to 60 seconds for status indicators—such as LEDs on the power supply and show chassis commands—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

Replace Hardware Components 107