Brocade Communications Systems FESX624HF Installation Manual page 28

Installing a FastIron Compact Switch
Installation precautions
Ensure that the device does not overload the power circuits, wiring, and over-current protection. To
determine the possibility of overloading the supply circuits, add the ampere (amp) ratings of all devices
installed on the same circuit as the device. Compare this total with the rating limit for the circuit. The
maximum ampere ratings are usually printed on the devices near the input power connectors.
All devices with DC power supplies are intended for installation in restricted access areas only. A
restricted access area is where access can be gained only by service personnel through the use of a
special tool, lock and key, or other means of security, and is controlled by the authority responsible for the
location.
For the DC input circuit to a FESX or FWSX (DC power supply part number RPS5DC and RPS-X424-DC),
make sure there is a 10-amp listed circuit breaker, minimum -48VDC, double pole, on the input to the
terminal block. The input wiring for connection to the product should be Listed copper wire, 14 AWG,
marked VW-1, and rated 90 degrees Celsius.
For the DC input circuit to the system (DC power supply part number RPSDC-X424-POE), make sure there
is a Listed 30 amp circuit breaker, minimum -48Vdc, double pole, on the input to the terminal block. The
input wiring for connection to the product should be Listed copper wire, 10 AWG, marked VW-1, and rated
minimum 90 degrees celcius.
Make sure you insert the power supply right-side up. It is possible to insert the supply upside down,
although the supply will not engage with the power backplane when upside down. The power supply is
right-side up when the power connector is on the left and the fan vent is on the right.
28 Brocade FastIron Edge X-Series Hardware Installation Guide
Part Number: 53-1002499-02