Standards Supported By These Cables; Grounding Cable And Lug Specifications For Ex4500 Switches - Juniper EX4500-40F-FB Complete Hardware Manual

Complete Hardware Guide for EX4500 Ethernet Switches

Standards Supported by These Cables

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Grounding Cable and Lug Specifications for EX4500 Switches

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The cables comply with the following standards:
SFP mechanical standard SFF-843—see
Electrical interface standard SFF-8432—see
SFP+ Multi-Source Alliance (MSA) standards.
Pluggable Transceivers Supported on EX Series Switches
Installing a Transceiver in an EX Series Switch on page 134
Removing a Transceiver from a Switch on page 195
For installations that require a separate grounding conductor to the chassis, the switch
must be adequately grounded before power is connected to ensure proper operation
and to meet safety and electromagnetic interference (EMI) requirements. To ground an
EX4500 switch, connect a grounding cable to earth ground and then attach it to the
chassis grounding points.
CAUTION: For installations that require a separate grounding conductor to
the chassis, use the protective earthing terminal on the switch chassis to
connect to earth ground. Before switch installation begins, a licensed
electrician must attach a cable lug to the grounding cables that you supply.
See "Connecting Earth Ground to an EX Series Switch" on page
with an incorrectly attached lug can damage the switch.
A pair of threaded inserts (PEM nuts) is provided on the left side towards the rear corner
of the chassis for connecting the switch to earth ground. The grounding points fit UNC
10-32 screws. The grounding points are spaced at 0.625 in. (15.86 mm).
The grounding cable that you provide for an EX4500 switch must be 14 AWG (2 mm
minimum 90°C wire, or as permitted by the local code.
NOTE: Grounding is provided to an AC-powered switch when you plug its
power supplies into grounded AC power receptacles.
WARNING: The switch is pluggable type A equipment installed in a
restricted-access location. It has a separate protective earthing terminal
provided on the chassis in addition to the grounding pin of the power supply
cord. This separate protective earthing terminal must be permanently
ftp://ftp.seagate.com/sff/SFF-8431.PDF
ftp://ftp.seagate.com/sff/SFF-8432.PDF
Copyright © 2015, Juniper Networks, Inc.
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