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Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide
OL-22168-01
Chapter 3 Installing and Removing AC and DC Input Power Supply and Fan Modules
Power Supply and Fan Module Installation
Installing a DC Power Supply Module
This procedure is for installing an DC power supply module into the PSU 1 power supply module slot.
Repeat these steps to install a power supply module in the PSU 2 power supply slot.
To connect the switch to a DC input power source, follow these steps:
1. Preparing for Installation, page 3-7
2. Grounding the Switch, page 3-8
3. Installing the DC Power Supply Module in the Switch, page 3-10
4. Wiring the DC Input Power Source, page 3-10
Warning
An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure
that no exposed portion of the DC-input power source wire extends from the terminal block plug.
Statement 122
Warning
Before connecting or disconnecting ground or power wires to the chassis, 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. Use a voltmeter to test for 0 (zero) voltage at the
power terminals on the chassis.
Statement 196
Caution Installation of the equipment must comply with local and national electrical codes.
Note We recommend that you use 14 or 16 AWG copper wiring for Network Equipment Building Systems
(NEBS) installation, following the guidelines for DC power wiring in the central office.
Note You can use the grounding lug to attach a wrist strap for ESD protection during servicing.
Preparing for Installation
You need these tools and equipment:
• Ratcheting torque Phillips-head screwdriver that exerts up to 36 inch-pounds (in-lb).
• Crimping tool
• Wire-stripping tools.
• Copper ground wire (6 AWG, insulated or noninsulated) for the ground connection.
• Two leads of 14 or 16 AWG copper wire.