Each DC power supply consists of one DC input (–48 VDC and return), one 40 A (–48 VDC) circuit breaker, a fan, and LEDs to monitor the status of
the power supply. Two different DC power supply types are available. Figure 1 and Figure 2 show the power supplies. Each DC power supply has a
single DC input (–48 VDC and return) that requires a dedicated facility circuit breaker.
For high-capacity power supplies, we recommend that you provision 60 A or 70 A per feed, depending on the selected DIP switch setting.