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FAN-7002-R 数据表(PDF) 31 Page - Arista Networks, Inc |
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FAN-7002-R 数据表(HTML) 31 Page - Arista Networks, Inc |
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31 / 66 page ![]() Powering the Modular Switch • Commercially available 2 to 4 AWG wire is recommended for installations in the U.S. • Wire size should meet local and national installation requirements. • Grounding wires and grounding lugs are not supplied. • Strip the wires to the appropriate length for the lugs. The wires connecting the DC power supply to the power source must meet the following requirements: • DC Input Wire Size: 2 – 4 AWG (33.6 mm 2 to 21.2 mm2). • Primary Ground Wire Size: 2 – 4 AWG (33.6 mm 2 to 21.2 mm2) per power supply. • The conductors are copper. 1 -48V + RTN lug 5 5/16” 9 5/8” 2 Insulated wire 6 Heat-shrink tubing 10 1/2” 3 Insulated wire 7 Heat-shrink tubing 4 Ground lug (right angle) 8 1/4” Figure 20: Lugs Wiring Terminations Figure 21: Ground Lug Wiring Termination (PWR-2700W-DC-R) 1 Insulated wire 3 5/16” 2 Ground lug (right angle) 4 Heat-shrink tubing Note: You can also use a 45° angled connector instead of the straight connector shown. 2. Use agency-approved compression (pressure) lugs for wiring terminations with a single 5/16" mounting hole. Two-hole lugs should have 1/4" mounting holes on 5/8" centers. The PWR-2700W-DC-R ground lug is a right-angle lug. Check the terminations for the appropriate wire size. Use a ground wire of at least 2 – 4 AWG. Use only copper wire. 3. Slip on heat-shrink tubing on the wire ends before assembling the lugs on to the wire. • The lugs must be crimped with the proper tool. • The tubing should extend over the lug’s barrel and the wire's insulator. 4. Shrink the tubing with a heat gun. 27 |
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