Regenerators/Transponders

By: Optelian  09-12-2011
Keywords: Transmission Equipment, Transponders

Two data rate options:

  • RGN-3 Family: Up to 2.7 Gb/s
  • RGN-10 Family: 9.95 to 11.32 Gb/s

Two interfaces

  • Tunable – save on spares in DWDM applications
  • Pluggable – flexibility for more applications

OTN

  • Extended reach with forward error correction (FEC and SuperFEC)
  • Enhanced performance monitoring

Regenerators can be used in a number of ways to extend reach. This saves money whenever placement of SONET/SDH or Ethernet transmission equipment can be avoided.

The optics on some transmission equipment, Ethernet in particular, can be very short reach (500 m to 2 km). Extending this reach up to 100 km can be done simply by adding a regenerator with long reach optics.

Any system can be extended for an unlimited distance by adding regenerators mid-span, as the 3R (reshape, regenerate and retime) function of the regenerator effectively cleans up the signal from chromatic and polarization mode dispersion. Regenerators can be used with amplifiers; amplifiers giving hundreds of kilometers of reach and regenerators placed when necessary to clean up the signal.

Transponders generally are the “on-ramp” to WDM, CWDM or DWDM applications.

Transponders perform conversions:

  • Media (electrical to optical)
  • Mode (multimode to singlemode)
  • Wavelength (1310 / 1550 nm to CWDM or DWDM specific wavelengths)

Keywords: Transmission Equipment, Transponders

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