MX240 Chassis Grounding Specifications
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MX240 Chassis Grounding Points Specifications on page 157
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MX240 Router Grounding Cable Lug Specifications on page 158
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MX240 Router Grounding Cable Specifications on page 158
MX240 Chassis Grounding Points Specifications
To meet safety and electromagnetic interference (EMI) requirements and to ensure
proper operation, the router must be adequately grounded before power is connected.
To ground AC-powered and DC-powered routers, you must connect a grounding cable
to earth ground and then attach it to the chassis grounding points using the two screws
provided.
Two threaded inserts (PEM nuts) are provided on the upper rear of the chassis for
connecting the router to earth ground. The grounding points fit UNC 1/4–20 screws
(American). The grounding points are spaced at 0.625-in. (15.86-mm) centers.
See Figure 43 on page 157 for connecting AC power to the router and Figure 44 on page 158
for connecting DC power to the router.
NOTE: Additional grounding is provided to an AC-powered router when you
plug its power supplies into grounded AC power receptacles.
Figure 43: Connecting AC Power to the Router
157Copyright © 2017, Juniper Networks, Inc.
Chapter 13: DC Power Requirements and Specifications