It is primarily used in Cable TV (CATV) and Fiber-to-the-Home (FTTH) networks to manage power and signal distribution between a set-top box (STB) and other network devices
Key Functions
- Power Distribution: It splits DC power from a single STB adapter to provide power to both the set-top box and external devices like optic nodes or amplifiers.
- Protection: Acts as a spike and surge protector for your STB and television, safeguarding them against voltage fluctuations.
- Signal Management: It carries RF signals from network devices while simultaneously sending DC current in the reverse direction through the coaxial cable.
Technical Specifications
- Frequency Range: Typically 900 – 2400 MHz.
- Housing: Durable ABS plastic or metal casing.
- Ports: Features isolated RF ports (total spike protected) and standard DC ports (usually 2.5mm/1.5mm).
- Common Models:
Typical Setup
In a standard configuration, the "TV port" connects to your TV or STB, while the "CABLE" port connects to external devices through an RF coaxial cable. It is often used when devices like amplifiers are located far (more than 60 meters) from a power source