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            Huawei OSN 1800 Fixed Optical Add/Drop Multiplexing Board TNF1EMR419 Overview
TNF1EMR419: Enhanced four Channel Optical Add/drop Multiplexer Board
The TNF1EMR419 board mainly serves to add/drop four channels of wavelength signals to/from the multiplexed signals in a direction.
The TNF1EMR419 supports two-fiber bidirectional transmission.
The TNF1EMR419 board consists of the OADM optical module, drive and detection module, and communication module.
Functions and Features of the TNF1EMR419 Board
| Function and Feature | Description | 
| Basic function | Adds/Drops and multiplexes four channels of signals to/from the multiplexed signals. | 
| WDM specification | Supports the DWDM specifications. | 
| Spectrum application | Supports signals with a 100 GHz channel spacing. | 
| Cascading port | Provides the interface to cascade another optical add and drop multiplexing board to achieve expansion. | 
| Optical power detection | The optical multiplexing output port supports detection of optical power sent to the PIN diode. | 



 
					
				 
					
				 
					 
 
 
             
  
  
              
 
 
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