• Supported Platforms
• MX80 Routers

• Related Topics
• MX80 Power System Description
• Removing an MX80 DC Power Supply
• Connecting an MX80 DC Power Supply Cable
• Preventing Electrostatic Discharge Damage to an MX80 Router
• MX80 Router DC Power Specifications
• DC Power Circuit Breaker Requirements for the MX80 Router
• DC Power Source Cabling for the MX80 Router
• DC Power Cable Specifications for the MX80 Router

Disconnecting an MX80 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.
3. Verify that the status LED on the power supply is not lit.
4. Remove the power cable from the external DC power source.
5. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
6. Move the DC circuit breaker on the DC power supply faceplate to the off (O) position.
7. Remove the clear plastic cover protecting the terminal studs on the faceplate.
8. Remove the screw from each of the terminals. (Use a number 2 Phillips screwdriver.)
9. Remove the cable lugs from the terminals.
10. Carefully move the power cables out of the way.