Grounding Cable And Lug Specifications For Ex9200 Switches; Grounding Points Specifications For An Ex9200 Switch - Juniper EX9214 Hardware Manual

EX9214 Switch Hardware Guide
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Grounding Cable and Lug Specifications for EX9200 Switches

Grounding Points Specifications for an EX9200 Switch

82
DC Power Supply in an EX9214 Switch on page 43
DC Power Supply LEDs in an EX9214 Switch on page 45
To ensure proper operation and to meet safety and electromagnetic interference (EMI)
requirements, you must connect an EX9200 switch to earth ground before you connect
power to the switch. You must use the protective earthing terminal on the switch chassis
to connect the switch to earth ground.
WARNING: The switch is installed in a restricted-access location. It has a
separate protective earthing terminal on the chassis that must be permanently
connected to earth ground to adequately ground the chassis and protect the
operator from electrical hazards.
CAUTION: Before switch installation begins, ensure that a licensed electrician
has attached an appropriate grounding lug to the grounding cable that you
supply. Using a grounding cable with an incorrectly attached lug can damage
the switch.
This topic describes:
Grounding Points Specifications for an EX9200 Switch on page 82
Grounding Cable Lug Specifications for an EX9200 Switch on page 83
Grounding Cable Specifications for an EX9200 Switch on page 83
To meet safety and electromagnetic interference (EMI) requirements and to ensure
proper operation, the switch must be adequately grounded before power is connected.
To ground AC-powered and DC-powered switches, you must connect a grounding cable
to earth ground and then attach it to the chassis grounding points using the two screws
provided.
Two threaded inserts (PEM nuts) are provided on the upper rear of the chassis for
connecting the switch to earth ground. The grounding points fit UNC 1/4–20 screws
(American). The grounding points are spaced at 0.625 in. (15.86 mm) centers.
NOTE: Additional grounding is provided to an AC-powered switch when you
plug its power supplies into grounded AC power receptacles.
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