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Power System Requirements and Specifications
M40 Internet Router Hardware Guide
46
Table 12 lists specifications for AC power cords and Figure 18 shows the types of plugs used
in different regions.
in different regions.
Table 12: AC Power Cable Specifications
Figure 18: AC Plug Types
DC Power and Grounding Cable Specifications
On a DC-powered router, the power cable from each external DC power source attaches to
terminal studs on the power supply, as shown in Figure 19. There are two sets of 1/4–20 UNC
terminal studs for each power supply—the input set is labeled
terminal studs on the power supply, as shown in Figure 19. There are two sets of 1/4–20 UNC
terminal studs for each power supply—the input set is labeled
-48V
and the return set is
labeled
RTN(+)
. The grounding cable attaches to the 1/4–20 UNC grounding studs located at
the lower right corner of the power supply.
Figure 19: DC Power Supply Cable Connectors
Country
Electrical Specification
Plug Type
Australia
240 VAC, 50 Hz AC
SAA/3
China
220 VAC, 50 Hz AC
CH2-16P
Europe
220 or 230 VAC, 50 Hz AC
VII
Italy
230 VAC, 50 Hz AC
I/3/16
North America
208 VAC, 60 Hz AC
NEMA 6-20P
United Kingdom
240 VAC, 50 Hz AC
BS89/3
Italy
Europe
UK
China
Australia
1990
North America
1131
Grounding studs
Terminal studs
Input
Return
Cable lug
Locking
washers
washers
Nuts