Alcatel-Lucent 7450 ESS-7, Руководство по установке

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Installing DC PEMs
Page 68 7450 ESS-7
DC-Input Power Wiring
Preparing the Power Cable
Connect the VDC and RTN studs on the DC terminal block with power cables terminated with lugs
such as a Panduit LCC6-10A-L copper, standard barrel, 2-hole lug with two .200-inch (
.508
cm)
diameter holes on a .625-inch (1.6 cm) spacing ( Figure 17 ).
The other non-terminated end of the power cables must be prepared according to your local safety
codes. The length of the power cable depends on the location of the router and proximity to the
power source.
Figure 17: DC Terminal Block Lug
Figure 18: Preparing the DC Cable
Warning:
• Ensure that all power is OFF from the DC circuit. Locate the circuit breaker on the panel board
that services the DC circuit. Flip the circuit breaker to the OFF ( O ) position.
• When wiring the unit, the ground connection must always be made first and disconnected last.
• The proper wiring sequence is ground/negative to ground/negative and positive/return to
positive/return.
• Use a #6 AWG for the -48 and RTN power connections.
0.750"
0.250
2 Holes
All measurements in inches.
SR12030
.200
.625
1
2
SR10030