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Connecng the QFX5200 to Power

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Connect the QFX5200 to Earth Ground | 109

Alternate Method to Ground QFX5200-32C-DC Systems | 111

Connecng AC Power to a QFX5200 | 112

Connecng DC Power to a QFX5200 | 115

Connect the QFX5200 to Earth Ground

You must install the QFX5200 in a restricted-access locaon and ensure that the chassis is always

properly grounded. The QFX5200 has a two-hole protecve grounding terminal provided on the chassis.

See Figure 49 on page 110. We recommend that you use this protecve grounding terminal as the

preferred method for grounding the chassis regardless of the power supply conguraon. However, if

addional grounding methods are available, you can also use those methods. For example, you can use

the grounding wire in the power cord for AC power or use the grounding terminal or lug on a DC power

supply. This tested system meets or exceeds all applicable EMC regulatory requirements with the two-

hole protecve grounding terminal.

CAUTION: Ensure that a licensed electrician has aached an appropriate grounding lug

to the grounding cable that you supply. Using a grounding cable with an incorrectly

aached lug can damage the switch (for example by causing a short circuit.)

NOTE: Mount your switch in the rack or cabinet before aaching the grounding lug to the

switch. See "Mounng a QFX5200 in a Rack or Cabinet" on page 99.

Ensure that you have the following parts and tools available:

• Grounding cable for your QFX5200 device—The grounding cable must be 14 AWG (2 mm²),

minimum 90° C wire, or as permied by the local code (not provided).

• (QFX5200-32C and QFX5200-32C-L) Grounding lug for your grounding cable—The grounding lug

required is a Panduit LCD10-10A-L or equivalent (not provided).

109

Juniper QFX5200 User Manual

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