Building Entrance Terminals Modules Other These 16 AWG steel building entrance terminals feature reliable 66 block style Quick Clip connectors for both the input and output terminals. Connectors can accept up to an 18 AWG line termination. Also included are multiple external and internal ground lugs, as well as splice chambers and various types of security covers. UL approval standard on all terminals. Standard 5-pin protector modules, available in Analog and Digital versions, can be purchased separately or loaded.