4 channel CWDM, 1-fibre, SC/PC, A side

CWDM adapted to 1-fibre solution (transmit and receive in the same fibre). The patch panel comes with a built-in CWDM multiplexer and demultiplexer.

• Independent of protocol and bit speed
• Can be mounted in 19" and ETSI cabinet/rack
• Passive, does not need any power supply

DESCRIPTION
CWDM may be delivered in several types of panels and boxes from FOSS.  
The most common are:

• FPM76-modular panel   
• FP65-1U panel
• FPD76- wall box DIN  

• May also be delivered in most splice closures.  
  
  They are based on reliable passive technology and are delivered with SC or LC interface with PC or APC polished connectors. 

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  SYSTEM DESCRIPTION
  Passive CWDM units are a reliable and reasonable method for transferring several wavelengths/signals over the same fibre (wavelength multiplexing). In this way you may increase the capacity of existing fibre-cable significantly. Combined with OADM you may add or drop wavelengths on the way between the end points. A big advantage of using passive wavelength multiplexing is also that the method is protocol– and bitrate independent.  
  
  A complete system with components for two-way communication (multiplexer and de-multiplexer) in both ends are made using two units. 

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  SPECIFICATIONS

  Operating temperature: -40 °C to 85 °C
  
  Insertion loss*:  
  4 channel/2xUpgrade:       < 3.4/3.4 dB       < 2.9/2.9 dB typically  
  8 channel:                          < 3.6 dB             < 3.0 dB typically  
  8L(lower band):                  < 3.8 dB             < 3.1 dB typically  
  8 channel/WB:                   < 3.6/3.6 dB       < 3.0/3.0 dB typically  
  8 channel/WB + Monitor:   < 4.1/4.1 dB       < 3.5/3.5 dB typically  
  18 channel:                        < 4.6 dB             < 4.0 dB typically  
  8-channel/WB (3-port):      < 4.6/5.6 dB       < 4.0/4.5 dB typically
  * Loss over a system (2 panels and 4 connector-pairs)  
  
  Wavelength (according to ITU-T G.694.2) :
  4 channel: 1471, 1491, 1591, 1611  
  8 channel: 1471, 1491, 1511, 1531, 1551, 1571, 1591, 1611 or   1271, 1291, 1311, 1331, 1351, 1371, 1431, 1451 nm    
  18 channel: 1271, 1291, 1311, 1331, 1351, 1371, 1391, 1411, 1431, 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591 and 1611 nm  
  
  Pass band:
  CWDM channels: +/- 6.5 nm  
  1310 nm: +/- 50 nm  
  Upgrade 1/WB: 1260-1458 nm  
  Upgrade 2: 1504-1577 nm
  
  Monitor output (where available): ca. 20 dB below the line signal (1%)