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Huawei OSN1800 Optical add and drop multiplexing boards TNF1MR4

Huawei OSN1800 Optical add and drop multiplexing boards include :
TNF1DMD1:Bidirectional single channel optical add/drop multiplexing board
TNF1DMD1S:Bidirectional single channel optical add/drop multiplexing board with OSC
TNF1DMD2:Bidirectional double channel optical add/drop multiplexing board
TNF1DMD2S:Bidirectional double channel optical add/drop multiplexing board with OSC
TNF1EMR2:Enhanced double channel optical add/drop multiplexer board
TNF1EMR4:Enhanced four channel optical add/drop multiplexer board
TNF1EMR8:Enhanced eight channel optical add/drop multiplexer board
TNF1MD8:8 channel multiplexing and demultiplexing board
TNF1MD8S:8 channel multiplexing and demultiplexing board with OSC
TNF1MD8M:8-channel multiplexing/demultiplexing board with MON ports
TNF1MD16M:16-channel multiplexing/demultiplexing board with MON ports
TNF1MR1:Single channel optical add/drop multiplexing board
TNF1MR1S:Single channel optical add/drop multiplexing board with OSC
TNF1MR2:Double channel optical add/drop multiplexing board
TNF1MR2S:Double channel optical add/drop multiplexing board with OSC
TNF1MR4:Four channel optical add/drop multiplexing board
TNF1MR4S:Four channel optical add/drop multiplexing board with OSC
TNF1MR8:Eight channel optical add/drop multiplexing board
TNF1SBM1:Single fiber bidirectional single channel optical add/drop multiplexing configuration board
TNF1SBM2:Single fiber bidirectional double channel optical add/drop multiplexing configuration board
TNF1SBM4:Single fiber bidirectional four channel optical add/drop multiplexing configuration board
TNF1SBM8:Single fiber bidirectional eight channel optical add/drop multiplexing configuration board
OSN+1800+I+left+view
Today we learn about TNF1MR4: Four channel optical add/drop multiplexing board

Board Product Applicable-System Control Board-Initial Board
Version Supported by System Control Board
TNF1MR4 1800 I&II Compact-TNF1SCC-V100R001C01
1800 I&II Compact-TNF3SCC-V100R005C20
1800 V-TNF5UXCM-V100R003C05
1800 V-TNF5XCH-V100R005C00
1800 V-TNF5UXCME-V100R005C20
1800 V-TNZ5UXCMS-V100R006C10
1800 II Enhanced-TNZ1UXCL-V100R007C10

MR4 Specifications  include optical specifications, rules of adding and dropping wavelengths, mechanical specifications, and power consumption.
1) The MR4 board specifications in DWDM system

Corresponding
interfaces
Item Unit Value
Operating frequency range THz 192.10 to 196.00
Adjacent channel spacing GHz 100
IN-D1 1.0 dB spectral width nm ≥ 0.2
IN-D2 Drop channel insertion loss dB < 2.0
IN-D3 Adjacent channel isolation dB ≥ 25
IN-D4 Non-adjacent channel isolation dB ≥ 35
A1-OUT 1.0 dB spectral width nm ≥ 0.2
A2-OUT
A3-OUT
A4-OUT Add channel insertion loss dB < 2.0
IN-MO Insertion loss dB < 1.5
Isolation dB > 13
MI-OUT Insertion loss dB < 1.5
Isolation dB > 15
Reflectance dB < -40

2 )The board specifications in CWDM system

Corresponding
interfaces
Item Unit Value
Operating wavelength range nm 1471 to 1611
Adjacent channel spacing nm 20
IN-D1 1.0 dB spectral width nm ≥ 13
IN-D2 Drop channel insertion loss dB < 1.5
IN-D3 Adjacent channel isolation dB > 30
IN-D4 Non-adjacent channel isolation dB > 40
A1-OUT 1.0 dB spectral width nm ≥ 13
A2-OUT
A3-OUT
A4-OUT Add channel insertion loss dB < 1.5
IN-MO Insertion loss dB < 1.5
dB < 1.5
Isolation dB > 13
MI-OUT Insertion loss dB < 1.5
Isolation dB > 15
Reflectance dB < -40

OSN+1800+II+left+view
In a DWDM system, the MR4 supports adding/dropping of four channels in the same band of the same board.
3 )Wavelength distribution rules of the MR4 in a DWDM system

Band Group Frequency (THz)
A1/D1 A2/D2 A3/D3 A4/D4
1 192.1 192.2 192.3 192.4
2 192.5 192.6 192.7 192.8
3 192.9 193 193.1 193.2
4 193.3 193.4 193.5 193.6
5 193.7 193.8 193.9 194
6 194.1 194.2 194.3 194.4
7 194.5 194.6 194.7 194.8
8 194.9 195 195.1 195.2
9 195.3 195.4 195.5 195.6
10 195.7 195.8 195.9 196

In a CWDM system, the MR4 supports adding/dropping of four wavelengths in the same band of the same board.
4 )Wavelength distribution rules of the MR4 in a CWDM system

Wavelength (nm)
A1/D1 A2/D2 A3/D3 A4/D4
1471 1491 1511 1531
1551 1571 1591 1611

The wavelength that is sent to each optical port should comply with the following rules:
The add wavelength and drop wavelength of each channel are the same. In addition, the wavelengths are incremented from the first channel to the fourth channel. (A1 = D1 < A2 = D2 < A3 = D3 < A4 = D4)
OSN+1800+V+left+view

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