Juniper EX9214 Hardware Manual page 186

• Ensure that you have connected the device chassis to earth ground.
CAUTION: For installations that require a separate grounding conductor to the chassis,
have a licensed electrician complete this connection before you connect the switch to
power. For instructions on connecting earth ground, see
EX Series Switch
• Install power supplies in the switch. See
page 216.
Ensure that you have the following parts and tools available:
• ESD grounding strap
• If you are using the power supply in one-feed mode, one AC nominal 220 VAC 20 A power cord
appropriate for your geographical location. If you are using the power supply in two-feed mode, two
AC nominal 220 VAC 20 A power cords appropriate for your geographical location. See
Cord Specifications for an EX9214 Switch" on page 46
plug appropriate for your geographical location.
You can install up to four AC power supplies in EX9214 switches.
CAUTION: Do not mix different types of power supplies (AC and DC) in the same
chassis.
NOTE: Each power supply must be connected to a dedicated AC power source outlet and a
dedicated customer site circuit breaker.
WARNING: Ensure that the power cords do not block access to switch components or
drape where people can trip on them.
To connect AC power to an EX9214 switch:
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
2. Ensure that the power supply is fully inserted and latched securely in the chassis. See
AC Power Supply in an EX9214 Switch" on page
3. Rotate the metal cover next to the appliance inlet on the power supply faceplate away to expose
the input mode switch.
.
"Installing an AC Power Supply in an EX9214 Switch" on
216.
Connect Earth Ground to an
to identify the power cord with the type of
175
"AC Power
"Installing an