SEE ALSO
AC Power Supply in an EX4600 Switch | 28
Connecng DC Power to an EX4600 Switch
Before you begin connecng DC power to the switch:
• Ensure that you have taken the necessary precauons to prevent electrostac discharge (ESD)
damage (see
Prevenon of Electrostac Discharge Damage
).
• Ensure that you have connected the switch chassis to earth ground.
CAUTION: Before you connect power to the switch, a licensed electrician must aach
a cable lug to the grounding and power cables that you supply. A cable with an
incorrectly aached lug can damage the switch (for example, by causing a short
circuit).
To meet safety and electromagnec interference (EMI) requirements and to ensure
proper operaon, you must connect the chassis to earth ground before you connect it
to power. For installaons that require a separate grounding conductor to the chassis,
use the protecve earthing terminal on the switch chassis to connect to the earth
ground. For instrucons on connecng earth ground, see "Connecng Earth Ground to
an EX4600 Switch" on page 77.
• Install the power supply in the chassis. For instrucons on installing a power supply in an EX4600
switch, see "Installing a Power Supply in an EX4600 Switch" on page 100.
Ensure that you have the following parts and tools available:
• DC power source cables (14–16 AWG) with ring lug (Molex 190700069 or equivalent) (not provided)
• Phillips (+) screwdriver, number 2 (not provided)
• Mulmeter (not provided)
The EX4600 is shipped from the factory with two power supplies. Each power supply is a hot-removable
and hot-insertable eld-replaceable unit (FRU) when the second power supply is installed and running.
You can install replacement power supplies in the two slots next to the fan modules without powering
o the switch or disrupng the switching funcon.
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