Table 29: M120 Dc Power And Grounding Cable Specifications - Juniper M120 Hardware Manual

M120 Multiservice Edge Router Hardware Guide

Table 29: M120 DC Power and Grounding Cable Specifications

Cable Type
Power
Grounding
Grounding—If the 48 VDC facility is equipped with a
circuit breaker rated 80 A (–48 VDC) up to 100 A
(–48 VDC), then the grounding cable must be
minimum 6 AWG, or as permitted by the local code
Related
Documentation
236
Quantity and Specification
Four 6-AWG (13.3 mm
permitted by the local code
One 10-AWG (5.27 mm
permitted by the local code
One 6-AWG (13.3 mm
permitted by the local code
WARNING: For field-wiring connections, use copper conductors only.
For other electrical safety information, see "General Electrical Safety Warnings
for M Series, MX Series, and T Series Routers" on page 208.
CAUTION: Power cords and cables must not block access to router
components or drape where people could trip on them.
The accessory box shipped with the router includes the cable lugs that attach to the
terminal studs of each power supply (see Figure 95 on page 230). (The cable lug shown
in Figure 95 on page 230 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.
CAUTION: Power cords and cables must not block access to router
components or drape where people could trip on them.
For information about the DC power supply, see "M120 DC Power Supply Description"
on page 31. For instructions on connecting the DC power and grounding cables during
initial installation, see "Connecting Power to a DC-Powered M120 Router" on page 91.
For instructions on replacing a DC power cable, see "Replacing an M120 DC Power Supply
Cable" on page 183.
Connecting Power to a DC-Powered M120 Router on page 91
Replacing an M120 DC Power Supply on page 177
M120 DC Power Supply Description on page 31
2
), minimum 75°C wire, or as
2
), minimum 75°C wire, or as
2
), minimum 75°C wire, or as
Copyright © 2010, Juniper Networks, Inc.
Maximum
Equal Length
None
None
None