CT-212D Optical Receiver Nodes

When looking at “CT-212D Optical Receiver Nodes,” it’s important to understand that these are devices used within cable television (CATV) and fiber-to-the-home (FTTH) networks. Here’s a general overview based on the information available:

Key Characteristics and Functions:

• Optical to RF Conversion:
  • The core function is to convert optical signals (light) coming through fiber optic cables into radio frequency (RF) signals. These RF signals can then be used by devices like televisions and cable modems.
• CATV and FTTH Applications:
  • These nodes are essential for distributing cable television signals and broadband internet services. They are deployed in both traditional CATV networks and modern FTTH networks.
• Frequency Range:
  • These devices operate within a specific frequency range, typically designed to handle the frequencies used for television and data signals. Common ranges include 40-1000 MHz.
• Optical Input:
  • They receive optical signals within a certain power range (e.g., +2 to -16 dBm).  
• Wavelength:
  • They operate within specific optical wavelengths, often in the 1280-1600 nm range.   
• Powering:
  • Depending on the model, they may be powered by mains AC, DC power, or even power over coaxial cable (POC).
• Outputs:
  • These nodes provide RF outputs, and the number of outputs can vary. For example some nodes may have 2 outputs, while others have 4 or 8 outputs.
• Connectors:
  • They typically use SC/APC optical connectors.   

In essence:

The CT-212D optical receiver node is a device that bridges the gap between fiber optic networks and traditional coaxial cable systems. It allows for the delivery of high-bandwidth services to homes and businesses.

When purchasing these kinds of devices, it is very important to pay close attention to the specifications of the device, to make sure that it is compatible with the network that it will be installed in.