Juniper EX2300 Series - Page 142

Special Instrucons to Follow Before Connecng Earth Ground to an EX Series Switch | 139
Connecng Earth Ground to an EX Series Switch | 140
To ensure proper operaon and to meet safety and electromagnec interference (EMI) requirements,
you must connect an EX Series switch to earth ground before you connect power to the switch. You
must use the protecve earthing terminal on the switch chassis to connect the switch to earth ground
(see Figure 75 on page 141).
You must install the EX Series switch in a restricted–access locaon and ensure that the chassis is
always properly grounded. EX Series switches have a two–hole protecve grounding terminal provided
on the chassis. See Table 37 on page 134 for the locaon of the earthing terminals on various EX Series
switches. We recommend that you use the 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 of an AC power supply or use the grounding terminal or lug on a DC power supply. This
system was tested to meet or exceed all applicable EMC regulatory requirements with the two-hole
protecve grounding terminal connected correctly.
Ensure that a licensed electrician has aached an appropriate grounding lug to the grounding cable you
supply. Using a grounding cable with an incorrectly aached lug can damage the switch.
Parts and Tools Required for Connecng an EX Series Switch to Earth Ground
Before you begin connecng an EX Series switch to earth ground, ensure you have the parts and tools
required for your switch.
Table 37 on page 134 lists the earthing terminal locaon, grounding cable and lug specicaons, and
parts needed for connecng an EX Series switch to earth ground.
133