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Chapter 2
Preparing to Install the MGX RPM-XF
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when
electronic components are improperly handled and can result in complete or intermittent failures.
Always follow ESD prevention procedures when removing and replacing components. Ensure that the
chassis is electrically connected to earth ground. Wear an ESD preventive wrist strap, ensuring that it
makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely channel
unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap
and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal
part of the chassis.
For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and
Caution
10 megohms (Mohms).
General Site Requirements
This section describes the requirements your site must meet for safe installation and operation of your
system. Ensure that your site is properly prepared before beginning installation.
Power Supply Considerations
Check the power at your site to ensure that you are receiving "clean" power (free of spikes and noise).
Install a power conditioner if necessary.
The Cisco MGX 8850 and RPM-XF are designed to work with TN power systems.
Warning
The AC power supply of the RPM-XF is part of the Cisco MGX 8850 chassis. The RPM-XF, when
installed in the Cisco MGX 8850 chassis, receives –48 volts DC power from the midplane.
The DC power supply of the RPM-XF is part of the Cisco MGX 8850 chassis. The RPM-XF, when
installed in the Cisco MGX 8850 chassis, receives –48 volts DC power from the midplane.
The RPM-XF is installed in the Cisco MGX 8850 chassis. Refer to the Cisco MGX 8850 Routing Switch
Installation Guide. The location of the Cisco MGX 8850 chassis and the layout of your equipment rack
or wiring room are extremely important for proper system operation. Equipment placed too close
together, inadequate ventilation, and inaccessible panels can cause system malfunctions and shutdowns,
and can make RPM-XF maintenance difficult.
OL-13644-01
Cisco MGX Route Processor Module (RPM-XF) Installation and Configuration Guide
General Site Requirements
2-3
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