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Power Guidelines
, Requirements, and Specifications
Figure 18: AC Plug Types
ItalyEurope UKAustralia
1013
Japan North America
For information about the AC power supply, including electrical specifications and a
descriptio
n of components, see “AC Power Supply” on page 17. For instructions on
connecting the power cord during initial installation, see “Connect Power to an AC-Powered
Router” on page 65. For instructions on replacing the power cord on an operating router, see
“Disconnec
t and Connect AC Power” on page 101.
Power cords and cables must not block access to router components or
drape where people could trip on them.
DC Grounding, Connection, and Cable S pecifications
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 upper rear edge of the chassis. To supply
power to the router, connect power cables to a separate, dedicated DC power source for
each pow
er supply and attach the cables to the quick connect 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 t
he router. A pair of cables (one input and one return) connects the quick connect
terminals to the power distribution panel.
Tabl e 1
1 summarizes the specifications for the grounding and power cables, which you supply.
Table 11: DC Power and Grounding Cable Specifications
Cable Type Quantity and Specification
Maximum
Equal
Length
Power
Two 12
-AWG (3.33 mm
2
) single-strand-count wire cables
None
Grounding One 12-AWG (3.33 mm
2
) single-strand-count wire cable
None
46 M5 and M10 Internet Routers Hardware Guide