Juniper M7i Installation Instructions

DC Grounding, Con
nection, and C able Sp ecifications
Country Electrical Sp
ecification
Plug Type
Japan
110VAC,50or60HzAC 498G
North America
120 VAC, 60 Hz AC NEMA 5-15P
United Kingdom
240 VAC, 50 Hz A
C
BS89/3
Figure 3: AC Plug Types
ItalyEurope UKAustralia
1013
Japan North America
Power cords and cables must not block access to router components or
drape where people could trip on them.
DC Grounding, Connection, and Cable Specifications
To ground a DC-powered router, connect a grounding cable to earth ground and then attach it
to one of the chassis grounding points on the rear of the chassis. 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 field-wiring terminals on each power supply. Most sites distribute
DC power through a main conduit that leads to frame-mounted DC power distribution panels,
one of which might be located at the top of the rack that houses the router. A pair of cables
(one input and one return) connects the field-wiring terminals to the power distribution panel.
Table 5 summarizes the specifications for the grounding and power cables, which you supply.
Table 5: DC Power and Grounding Cable Specifications
Cable Type Quantity and Specification
Maximum
Equal
Length
Power
Two 14-AWG (2.5 mm
2
) single-strand-count wire cables for
each power supply
None
Grounding One 14-AWG (2.5 mm
2
) single-strand-count wire cable
None
M7i and M10i Internet Routers Power Supply Installation Instructions 5

Juniper M7i Specifications

General

Brand	Juniper
Model	M7i
Category	Network Router
Language	English