Juniper MX10004 - Connect the MX10004 Router to Earth Ground

The Juniper Networks MX10004 routers support AC, DC, high-voltage alternang current (HVAC), and
high-voltage direct current (HVDC) power supplies. To connect power to an MX10004 router, complete
the tasks in this secon.
NOTE: Do not mix power supply models in the same chassis in a running environment.
Connect the MX10004 Router to Earth Ground
To meet safety and electromagnec interference (EMI) requirements and to ensure proper operaon,
you must connect the chassis to earth ground. Make this connecon before you connect the router to
power.
You must install the Juniper Networks MX10004 router in a restricted-access locaon and ensure that
the chassis is always properly grounded.
The MX10004 has a two-hole protecve grounding terminal provided on the chassis. See Figure 53 on
page 137. Under all circumstances, use this grounding connecon 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 connecon. This tested system meets or exceeds all applicable EMC regulatory
requirements with the two-hole protecve grounding terminal.
If an external ground connecon is required, ensure that a licensed electrician has aached an
appropriate grounding lug to the grounding cable you supply.
WARNING: Using a grounding cable with an incorrectly aached lug can damage the
router.
NOTE: Mount your router in the rack before aaching the grounding lug to the router; see
"Mount the Juniper Networks MX10004 Router Using the JNP10004-RMK-4POST Rack-Mount
Kit" on page 120.
Ensure that you have the following parts and tools available:
• An electrostac discharge (ESD) grounding strap (provided).
• Protecve earthing terminal lug (provided).
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