Cisco 6509 Installation Guide - Page 214
W AC-Input and DC-Input Power Supplies
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950 W AC-Input and DC-Input Power Supplies Appendix A Power Supply Specifications 950 W AC-Input and DC-Input Power Supplies The 950 W AC-input (PWR-950-AC) and DC-input (PWR-950-DC) power supplies can be installed in the Catalyst 6503 and Catalyst 6503-E switch chassis only. Due to form factor differences, the 950 W AC-input and DC-input power supplies cannot be installed in any other Catalyst 6500 series switch chassis. The 950 W power supplies (see Figure A-1) do not connect directly to source AC or source DC but use power entry modules (PEMs), located on the front of the Catalyst 6503 and Catalyst 6503-E switch chassis, to connect the site power source to the power supply located in the back of the chassis. The form factor is the same for the AC-input and DC-input power supplies. The AC-input PEM (shown in Figure A-2) and DC-input PEM (shown in Figure A-3) provide an input power connection on the front of the router chassis to connect the site power source to the power supply. You can connect the DC-input power supply to the power source with heavy gauge wiring connected to a terminal block. The wire gauge size is determined by local electrical codes and restrictions. Note The system (NEBS) ground serves as the primary safety ground for Catalyst 6503 and Catalyst 6503-E chassis that are equipped with 950 W DC-input power supplies and DC-input PEMs. The DC-input power supplies for these chassis do not have a separate ground. The PEMs have an illuminated power switch (AC-input only), current protection, surge and EMI suppression, and filtering functions. Figure A-1 950 W AC- and DC-Input Power Supplies Status LEDs INPUT OK FAN OUTPUT OK FAIL 63183 Captive installation screws Figure A-2 950 W AC-Input PEM (PEM-15A-AC) IEC 60320 C15 connector AC power switch Captive installation screws Catalyst 6500 Series Switches Installation Guide A-4 130058 OL-5781-04
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