56 BigIron RX Installation Guide53-1001811-01Installing a BigIron RX-16 switch2DANGERIf the installation requires a different power cord than the one supplied with the device, makesure you use a power cord displaying the mark of the safety agency that defines the regulationsfor power cords in your country. The mark is your assurance that the power cord can be usedsafely with the device.4. For information about powering on the system, refer to “Powering-on the power source” onpage 79.Connecting DC power to a BigIron RX-16 chassisYou can use a DC power source for the BigIron RX-16 chassis. This is supported through use of aDC-to-DC power supply. DC power must be supplied at 48 V and 30 A. The DC-to-DC supply providesthe DC power to the chassis at 12 V and 100 A.DANGERThe procedure in this section is for qualified service personnel.Follow the steps given below to connect a DC power source.1. Use a flat-blade screwdriver to remove the two screws holding the transparent cover over thepower supply lugs.FIGURE 38 The BigIron RX-8 and BigIron RX-16 DC power supply2. Use a Phillips head screwdriver to remove each of the power lugs.3. Crimp #8 AWG power supply wire into the power lugs and reconnect the power lugs to thepower supply unit.1 Screws holding power lugs 2 Screws holding transparent coverDC OUT21ALMDC IN