Figure 129: AC Plug Types
NOTE:
Power cords and cables must not block access to router components
or drape where people could trip on them.
Related
Documentation
M40e Power System Description on page 42
•
•
Replacing an M40e AC Power Supply on page 211
•
Replacing an AC Power Cord on an M40e Power Supply on page 215
•
Connecting AC Power to the M40e Router on page 119
M40e DC Power, Connection, and Cable Specifications
To supply power to the router, connect power cables to a separate, dedicated DC power
source for each power supply and attach the cables to the terminal studs on the circuit
breaker box.
The accessory box shipped with the router includes the cable lugs that attach to the
terminal studs of the circuit breaker box. (The cable lug shown in “M40e Chassis Grounding
Specifications” on page 276 is also used for the grounding the chassis.)
CAUTION:
Before router installation begins, a licensed electrician must attach
a cable lug to the grounding and power cables that you supply. A cable with
an incorrectly attached lug can damage the router.
Table 30 on page 279 summarizes the specifications for the power cables, which you must
supply.
Table 30: Power Cable Specifications
Connector Specification
Quantity and Specification
Cable Type
Cable lug; dual hole, sized to fit
1/4-20 UNC terminal studs at
15.86-mm (0.625-in.) center line.
Eight 4-AWG (21.2 mm
2
) (minimum)
copper conductor, or as permitted by
the local code.
Power
CAUTION:
You must ensure that power connections maintain the proper
polarity. The power source cables might be labeled
(+)
and
(–)
to indicate
their polarity. There is no standard color coding for DC power cables. The
279
Copyright © 2010, Juniper Networks, Inc.
Appendix D: Power Guidelines, Requirements, and Specifications for the M40e Router
All manuals and user guides at all-guides.com
