Juniper MX2010, Руководство по оборудованию

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Figure 59: 6-AWG DC Grounding Cable Lug
g007468
0.63 ±.02
.27 ±.02
2 PLC
.48 ±.04
End view Inner diameter .22
.25 ±.04
All measurements in inches
Table 44 on page 144 summarizes the specifications for the power cables, which you must supply.
Table 44: DC Power Cable Specifications
Quantity and Specification Cable Type
Eighteen pairs of 4-AWG (21.2 mm
2
), used with 80-A PDM. Minimum
90°C wire, or as required by the local code
Power
Eighteen pairs of 6-AWG (13.3 mm
2
), used with 60-A PDM. Minimum
90°C wire, or as required by the local code
Power
MX2000 Series Router Grounding Cable Specifications
The 48 VDC facility must be equipped with a circuit breaker rated 60 A (–48 VDC), or 80 A (–48 VDC) for
each PDM input, and the grounding cable must be minimum 10 AWG, or as required by the local code.
NOTE: Additional grounding is provided to an AC-powered router when you plug its PDMs into
grounded AC power receptacles.
WARNING: The router is installed in a restricted-access location. It has a separate
protective earthing terminal (Metric [–M6] and Standard [–¼-20] screw ground lugs)
provided on the chassis in addition to the grounding pin of the power supply cord. This
separate protective earth terminal must be permanently connected to earth.
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