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DC Power Cable Specifications for the MX960 Router

The accessory box shipped with the router includes the cable lugs that attach to the terminal studs of each power supply (see Figure 1).

Figure 1: DC Power Cable LugDC Power Cable Lug

Before you install the router, a licensed electrician must attach a cable lug to the grounding and power cables that you supply. A cable with an incorrectly attached lug can damage the router.


The Router is a pluggable type A equipment installed in restricted access location. It has a separate protective earthing terminal (Metric [–M6] and English [–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.

Table 1 summarizes the specifications for the power cables, which you must supply.

Table 1: DC Power Cable Specifications

Cable Type

Quantity and Specification


Eight 4-AWG (21.2 mm2), minimum 60°C wire, or as required by the local code


You must ensure that power connections maintain the proper polarity. The power source cables might be labeled (+) and (–) to indicate their polarity. There is no standard color coding for DC power cables. The color coding used by the external DC power source at your site determines the color coding for the leads on the power cables that attach to the terminal studs on each power supply.