Figure 155: Connecting DC Power to the Router
Related
Documentation
MX240 DC Power Supply Description on page 92•
• Preventing Electrostatic Discharge Damage to an MX240 Router on page 444
• DC Power Supply Electrical Specifications for the MX240 Router on page 143
• DC Power Wiring Sequence Warning for M Series, MX Series, and T Series Routers
Replacing an MX240 DC Power Supply Cable
1.
Disconnecting an MX240 DC Power Supply Cable on page 343
2.
Connecting an MX240 DC Power Supply Cable on page 344
Disconnecting an MX240 DC Power Supply Cable
WARNING: Before performing DC power procedures, ensure that power is
removed from the DC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.
To disconnect a power cable for a DC power supply:
1. Switch off the dedicated customer site circuit breaker for the power supply being
removed. Follow your site's procedures for ESD.
2. Make sure that the voltage across the DC power source cable leads is 0 V and that
there is no chance that the cables might become active during the removal process.
343Copyright © 2017, Juniper Networks, Inc.
Chapter 26: Replacing Power System Components
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