All external connections: The pigtail AC plug is connected to the BDA via a waterproof connection. External connection points are included for DC and Alarms. Connectors and cables are required and can be purchased from Bird separately.
Some installs mandate a hardwired AC connection, in this case, the 63 Series is used.
Conduit openings are included to access and hardwire to the inside terminals for AC, DC and Alarms.