Juniper Networks M10i manual Rtn

M10i Internet Router Hardware Guide

10.Insert the power cable lugs into the appropriate field-wiring terminals. Using a number 1 Phillips screwdriver, turn the screw on each field-wiring terminal clockwise to secure the power cable lug. Apply between 8 lb-in. (.9 Nm) and 9 lb-in. (1.02 Nm) of torque to each screw.

a.Insert the positive (+) source cable into the return terminal, which is labeled

RTN.

b.Insert the negative (–) source cable into the input terminal, which is labeled

–48V.

NOTE: The DC power supplies in slots P/S 0 and P/S 1 must be powered by dedicated power feeds derived from feed A, and the DC power supplies in slots P/S 2 and P/S 3 must be powered by dedicated power feeds derived from feed B. This configuration provides the commonly deployed A/B feed redundancy for the system. For information about connecting to DC power sources, see “Chassis Grounding” on page 177 and “DC Power, Connection, and Cable Specifications” on page 179.

11.Verify that the DC source power cabling and the grounding cabling are correct, that they are not touching or blocking access to router components, and that they do not drape where people could trip on them.

Figure 26: Connecting DC Power and Grounding Cables

64■ Providing Power to the Router