The BUC Power Supply 6580 injects 48V DC into the BUC and blocks and DC voltage present on the IF cable but passes the 10MHz reference, FSK M&C signals and the L-Band IF Frequency. The 6580 is waterproof and may be located outdoors near the BUC.

The 48V DC output is also available by a terminal block in the 6580 to ensure connection of BUCs powered via the optional external DC connector.