16 Port G.703 75 -120 ohm Balun 19 inch rackmount panel 2U. Bidirectional signal conversion. No AC power or batteries needed. Low-profile design. Connect your 75-ohm dual-coax hardware to a 120-ohm, twisted-pair G.703 network with Baluns. You can also use the Balun Mate to make 120-ohm terminations on your 75-ohm network. The Balun Mate is a panel that bidirectionally matches both the signal impedance and the pulse shapes according to the G.703 standard.The Balun Mate (MT243A) is an entire system that includes a chassis (RM243A) and 16 modules (MT243C-F), which can also be ordered separately, see "Related Products." The Balun Mate fits in a standard 19"" rack. Connect your 75-ohm dual-coax hardware to a 120-ohm, twisted-pair G.703 network with the Balun Mate from Black Box. You can also use the Balun Mate to make 120-ohm terminations on your 75-ohm network. The Balun Mate is a panel that bidirectionally matches both the signal impedance and the pulse shapes according to the G.703 standard. The Balun Mate (MT243A) is an entire system that includes a chassis (RM243A) and 16 modules (MT243C-F), which can also be ordered separately. The Balun Mate fits in a standard 19" rack.