Connecng the EX4600 to Power
IN THIS SECTION
Connecng Earth Ground to an EX4600 Switch | 77
Connecng AC Power to an EX4600 Switch | 79
Connecng DC Power to an EX4600 Switch | 81
Connecng
Earth Ground to an EX4600 Switch
To ensure proper operaon and to meet safety and electromagnec interference (EMI) requirements,
you must connect an EX Series switch to earth ground before you connect power to the switch. You
must use the protecve earthing terminal on the switch chassis to connect the switch to earth ground
(see Figure 27 on page 78).
You must install the EX Series switch in a restricted–access locaon and ensure that the chassis is
always properly grounded. EX Series switches have a two–hole protecve grounding terminal provided
on the chassis. Under all circumstances, use this grounding connecon to ground the chassis. For AC-
powered systems, you must also use the grounding wire in the AC power cord along with the two-hole
grounding lug connecon. This tested system meets or exceeds all applicable EMC regulatory
requirements with the two-hole protecve grounding terminal.
Ensure that a licensed electrician has aached an appropriate grounding lug to the grounding cable you
supply. Using a grounding cable with an incorrectly aached lug can damage the switch.
NOTE: Mount your switch in the rack or cabinet before aaching the grounding lug to the
switch. See "Mounng an EX4600 Switch in a Rack or Cabinet" on page 73.
Ensure that you have the following parts and tools available:
• Protecve earthing terminal bracket—This bracket aaches to the EX4600 switch chassis through the
le front mounng bracket, providing a protecve earthing terminal for the switch.
• Grounding cable for your EX4600 switch—The grounding cable must be 14 AWG (2 mm²), minimum
90° C wire, or as permied by the local code.
77
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