Filter
Top Products
WARNING: The router is pluggable type A equipment installed in a restricted-access
location. It has a separate protective earthing terminal (sized for UNC 1/4-20 ground
lugs) provided on the chassis in addition to the grounding pin of the power supply
cord. This separate protective earthing terminal must be permanently connected to
earth.
■ The cores in the mains lead are colored in accordance with the following code:
■ Green and yellow—Earth
■ Blue—Neutral
■ Brown—Live
DC Power Electrical Safety Guidelines and Warnings
When working with DC-powered equipment, observe the following guidelines and
warnings:
■ DC Power Electrical Safety Guidelines on page 149
■ Copper Conductors Warning on page 150
■ DC Power Disconnection Warning on page 151
■ DC Power Grounding Requirements and Warning on page 152
■ DC Power Wiring Sequence Warning on page 153
■ DC Power Wiring Terminations Warning on page 154
DC Power Electrical Safety Guidelines
The following electrical safety guidelines apply to a DC-powered router:
■ A DC-powered router is equipped with a DC terminal block that is rated for the
power requirements of a maximally configured router. To supply sufficient power,
terminate the DC input wiring on a facility DC source capable of supplying at
least 31 A @ –48 VDC per input for each power supply.
■ Incorporate an easily accessible disconnect device into the facility wiring. We
recommend that the 48 VDC facility DC source should be equipped with a circuit
breaker rated at 40 A (–48 VDC) minimum, or as required by local code. In the
United States and Canada, the 48 VDC facility should be equipped with a circuit
breaker rated a minimum of 125% of the power provisioned for the input in
Safety Guidelines and Warnings ■ 149
Appendix A: Safety and Regulatory Compliance Information