PHY, MAC & DLL

Yitran offers its high performance, PLC optimized, royalty free MAC (Medium Access Control Layer)/DLL (Data Link Layer) on top of its uniquely robust and reliable PHY (Physical Layer).     
 

About Yitran's MAC/DLL

Optimized for Powerline Communication, Yitran's distributed MAC/DLL is designed to support a wide variety of applications. Based on proven protocol standards and concepts (such as IEEE 802.11), Yitran's distributed MAC/DLL integrates patented and patent pending enhancements specially adapted for the power line medium. 
 

MAC/DLL Main Features and Benefits Include:

  • PLC optimized
  • CSMA/CA line access with Adaptive Back-off (patent pending)
  • Adaptive rate control adaptation to channel quality
  • Support for up to 1023 logical networks with up to 2047 nodes per network
  • Acknowledged, unacknowledged and repetitive unacknowledged services (packet transmission and reception)
  • Re-transmission mechanism
  • Network diagnostics and analysis
  • Support for all PHY transport modes with automatic rate control mode
  • Simple command language Host interface
  • CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) channel access scheme
  • Insures co-existence between IT800 based standard solutions and proprietary solutions worldwide
  • Adaptive back-off algorithm based on IEEE802.11 and optimized for the power line medium (patent pending

 

About Yitran's PHY

Also optimized for Powerline Communication, Yitran's PHY integrates patented and patent pending enhancements specially adapted for the power line medium. 

PHY Features and Benefits:

  • PLC optimized for high immunity to signal fading, various noise characteristics, impedance modulation and phase/frequency distortion
  • Connectivity even in negative SNR levels
  • Powerful Error Correction Code
  • Clock recovery algorithm to allow low accuracy crystal
  • DCSK (Differential Code Shift Keying) Yitran’s patented modulation technique provides extremely high reliability
  • High in-phase and cross-phase reliability
  • Forward short-block soft decoding error correction mechanism and CRC-16
  • Complies with worldwide regulations (FCC, ARIB, EN50065-1, CENELEC)
  • Multiple transport modes:
    FCC and ARIB bands maximum raw bit rate: 
       - 7.5Kbps Standard Mode (SM)
       - 5.0Kbps Robust Mode (RM)
       - 1.25Kbps (Extremely Robust Mode) ERM
    CENELEC bands maximum raw bit rate:
        - 2.5Kbps Robust Mode (RM)
        - 0.625Kbps Extremely Robust Mode (ERM)
Yitran offers its high performance, PLC optimized, royalty free MAC (Medium Access Control Layer)/DLL (Data Link Layer) on top of its uniquely robust and reliable PHY (Physical Layer).