Optical Add-Drop Multiplexer

WDM - Optical Add-Drop Multiplexer


The FRM220 CWDM Optical Add/Drop Multiplexer is modular design cards that support ITU-T G.694.2 wavelengths between 1270nm to 1610nm in 20nm increments. The FRM220-OADM Optical Add/Drop Multiplexer takes a single wavelength from a trunk, pulls the signal out, and allows a new signal at the same wavelength to be inserted into the trunk at roughly the same spot. All the other wavelengths pass through the Add/Drop Multiplexer with only a small loss of power (usually < 2.5dB including connectors and adapters). An Optical Add/Drop Multiplexer (OADM) is available allowing a single wavelength to be dropped or added at specific sites in linear Add/Drop topology. FRM220 OADM modules are passive devices that require no external power. They can also be installed in an FRM220 powered chassis with a NMC management module¹ and can be managed using SmartView EMS network management software, Telnet or a serial console port. The FRM220 OADM modules can be installed in any FRM220 chassis equipped with other FRM220 media converters and transponders to provide a multiservice platform capable of delivering Ethernet, TDM, Voice and other services across a CWDM fiber common link.


  • Single Add/Drop Channel
  • Operating channel : 1311,1471,1491,1511,1531,1551,1571,1591,1611nm
  • Passive optical module, no power required
  • Protocol transparent, no limitation
  • Utilizes Industry standard ITU CWDM wavelengths
  • Optical connectors : LC

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