The ADBJ20-E1-BJ79 is a Between-series BNC Jack to TRB Jack Adapter concentrically designed with 2 concentric contacts isolated from each other, the center contact and the shielding connection. It converts BJ70 connection to BJ79 connection. It is used in digital data bus, MIL-STD-1553B base-band circuits and video pair applications (FLIR). It features field serviceable wrench crimp version for quick termination of cables up to 0.25-inch diameter. Tool crimp version requires hand tools for assembly (C in type number). Digits in type number following dash indicate cable/group size. Connectors do not require mechanical alignment for mating and the nominal impedance non constant.