M40E Dc Power, Connection, And Cable Specifications; Figure 129: Ac Plug Types; Table 30: Power Cable Specifications - Juniper M40E Hardware Manual

Figure 129: AC Plug Types

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Documentation

M40e DC Power, Connection, and Cable Specifications

Copyright © 2010, Juniper Networks, Inc.
Appendix D: Power Guidelines, Requirements, and Specifications for the M40e Router
NOTE: Power cords and cables must not block access to router components
or drape where people could trip on them.
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
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

Cable Type Quantity and Specification
Power Eight 4-AWG (21.2 mm
copper conductor, or as permitted by
the local code.
CAUTION: You must ensure that power connections maintain the proper
polarity. The power source cables might be labeled
their polarity. There is no standard color coding for DC power cables. The
Connector Specification
2
) (minimum) Cable lug; dual hole, sized to fit
1/4-20 UNC terminal studs at
15.86-mm (0.625-in.) center line.
(+)
and to indicate
(–)
279