Introduction to 75 ohm to 120 ohm converter G.703
The converter G.703 solves the problem of signal conversion from 75 ohm coaxial to 120 ohm twisted-pair cable. The communication with 75 ohm coaxial hardware can be completed by using ordinary 120 ohm twisted-pair cable; G703 adopts a metal body design, the overall Small but strong and durable
75 ohm to 120 ohm converter G.703 size chart
75 ohm to 120 ohm converter G.703 performance characteristics
Transmission line：1TU/CCITTG.703（unstructured）
Date Rate：2.048Mbps
75 ohm connector: dual coaxial interface BNC, wood or male (RG59 or 2002coax)
120 ohm connector: 8P8C RJ45, with shielded end
Power supply: no need for external power supply
75 ohm to 120 ohm converter interface introduction
75 ohm to 120 ohm converter interface illustration
75 ohm to 120 ohm converter connection diagram
75 ohm to 120 ohm converter G.703 connection diagram
75 ohm to 120 ohm converter G.703 settings
01、Shielded wire connection method
The factory settings of G.703 meet the needs of most users. The user can set whether to connect the shielded line between the 75 ohm coaxial to the 120 ohm interface, and the jumper configuration is shown in the figure below
Shielded circuit and jumper configuration diagram
Note: JP1 and JP2 have been disconnected when the product leaves the factory
02、Twisted pair/copper cable wiring arrangement
75 ohm to 120 ohm converter G.703 has two product forms (M and F), which are used for different coaxial cables (BNC male and BNC female). Both product forms are suitable for RJ45 female sockets with shielded ends, twisted pair and coaxial cable wiring arrangements are shown in the figure below
75 ohm to 120 ohm converter application range
75 ohm to 120 ohm converter is commonly used in road traffic monitoring systems, shopping malls and supermarkets monitoring systems, building surrounding security monitoring systems, etc.