Juniper MX480, Руководство по оборудованию

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9.
Turn on the dedicated customer site circuit breaker to the power supply.
10.
On each of the DC power supplies, switch the DC circuit breaker to the center position
before moving it to the on (
—
) position.
NOTE: The circuit breaker may bounce back to the off ( O ) position if you
move the breaker too quickly.
Observe the status LEDs on the power supply faceplate. If the power supply is correctly
installed and functioning normally, the
PWR OK
,
BRKR ON
, and
INPUT OK
LEDs light
green steadily.
Maintaining MX480 SFP and XFP Transceivers
• Replacing an SFP or XFP Transceiver on an MX480 DPC, MPC, MIC, or PIC on page 330
Replacing an SFP or XFP Transceiver on an MX480 DPC, MPC, MIC, or PIC
1. Removing an SFP or XFP Transceiver from an MX480 DPC, MPC, MIC, or PIC on page 330
2.
Installing an SFP or XFP Transceiver into an MX480 DPC, MPC, MIC, or PIC on page 331
Removing an SFP or XFP Transceiver from an MX480 DPC, MPC, MIC, or PIC
Removing an SFP or XFP does not interrupt DPC, MPC, MIC, or PIC functioning, but the
removed SFP or XFP no longer receives or transmits data.
To remove an SFP or XFP transceiver (see Figure 142 on page 331 ):
1.
Have ready a replacement transceiver or a transceiver slot plug, an antistatic mat,
and a rubber safety cap for the transceiver.
2.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
3.
Label the cables connected to the transceiver so that you can reconnect them correctly
later.
WARNING: Do not look directly into a fiber-optic transceiver or into the
ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables
connected to a transceiver emit laser light that can damage your eyes.
4.
Remove the cable connector from the transceiver.
5.
Pull the ejector handle out from the transceiver to unlock the transceiver.
Copyright © 2019, Juniper Networks, Inc. 330
MX480 Universal Routing Platform Hardware Guide