G.703 Baluns

These devices match the impedance between 75 ohm coaxial cables and 120 ohm balanced twisted pair cables  allowing G.703 twisted pair devices to connect to CoAx G.703 interfaces.  Simply make sure that the BNC connectors are the correct gender.  These are passive devices, so no power is required.
E1 baluns
CT-BLN
Balun
Miniature Balun for restricted spaces
CT-BALUN
Balun
Converts E1 carrier from coaxial to CAT5 cable
CT-BP20-CH
24 Port Balun Chassis
24 Port G.703 Balun Chassis