Huawei OSN 8800 BMD4 TN11BMD4 Price

OSN 8800 is a new-generation optical transmission system developed by Huawei. It adopts a unified switching architecture and can function as an MPLS/MPLS-TP-based packet device or a TDM device. When working with other devices of HuaweiOSN 8800 supports various networking modes, including the pure packet mode, hybrid networking (packet + TDM) mode, and pure TDM mode, achieving optimal processing for packet services and traditional SDH services. Thus, OSN 8800 efficiently transmits voice and data services over the same platform.

 

Version Description

The available functional version of the BMD4 board is TN11.

Mappings Between the Board and Equipment

The following provides the board(s) supported by the product. However, the availability of the board(s) is subject to PCNs. For PCN information, contact the product manager at your local Huawei office.

Board General 8800 T64 Subrack Enhanced 8800 T64 Subrack General 8800 T32 Subrack Enhanced 8800 T32 Subrack 8800 T16 Subrack 8800 Universal Platform Subrack 6800 Subrack 3800 Chassis
TN11BMD4 N N N N N Y Y N

Application

The BMD4 is an optical multiplexer and demultiplexer unit. It multiplexes and demultiplexes signals.

Figure 1 shows the position of the BMD4 in a WDM system.

Figure 1 Position of the BMD4 in a WDM system 

Functions and Features

The BMD4 provides functions and features such as multiplexing, demultiplexing, and in-service spectrum detection.

Table 1 provides the details about the functions and features of the BMD4.

Table 1 Functions and features of the BMD4
Function or Feature Description
Basic function In a 40-channel system, the BMD4 board multiplexes and demultiplexes the optical signals.Demultiplexes one channel of input 40-wavelength multiplexed signals with a spacing of 100 GHz to four channels of signals with a spacing of 200 GHz, that is, two channels of 12-wavelength multiplexed signals and two channels of 8-wavelength multiplexed signals. The reverse process is similar.
In-service detection and monitoring of the spectrum Provides an in-service monitoring interface. A small number of optical signals can be output to the spectrum analyzer or spectrum analyzer unit through the interface to monitor the spectrum and optical performance of the multichannel signals without interrupting the services.
Optical-layer ASON Not supported

Working Principle and Signal Flow

The BMD4 board consists of the optical module, the control and communication module, and the power supply module.

Figure 1 shows the functional modules and signal flow of the BMD4.

Figure 1 Functional modules and signal flow of the BMD4 

Signal Flow

The multiplexed signals with a spacing of 100 GHz are accessed through the IN optical interface and transmitted to the interleaver. Then, the interleaver splits the multiplexed signals into four channels of multiplexed signals with a spacing of 200 GHz, that is, two channels of 12-wavelength multiplexed signals and two channels of 8-wavelength multiplexed signals. Finally, the four channels of multiplexed signals are output through the T01-T04 optical interfaces.

The four channels of multiplexed signals are received through the R01-R04 optical interfaces and are transmitted to the coupler. Then, the coupler couples the four channels of multiplexed signals into one channel of multiplexed signals with a spacing of 100 GHz. Finally, the signals are output through the OUT optical interface.

Module Function

  • Optical module
    • Demultiplexes one channel of input 40-wavelength multiplexed signals with a spacing of 100 GHz into four channels of multiplexed signals with a spacing of 200 GHz, that is, two channels of 12-wavelength multiplexed signals and two channels of 8-wavelength multiplexed signals, and uses the coupler to couple the signals with a spacing of 200 GHz into one channel of 40-wavelength multiplexed signals with a spacing of 100 GHz.
    • The splitter splits some optical signals from the main optical path and provides them to the MON interface for detection.
  • Control and communication module
    • Controls board operations.
    • Controls the operations on each module of the board according to the instructions from the CPU.
    • Collects information about alarms, performance events, working status, and voltage detection of each functional module of the board.
    • Communicates with the SCC board.
  • Power supply moduleConverts the DC power supplied by the backplane into the power required by each module on the board.

Front Panel

There is one indicator and laser level label on the front panel of the BMD4.

Appearance of the Front Panel

Figure 1 shows the front panel of the BMD4.

Figure 1 Front panel of the BMD4 

Indicators

One indicator is present on the front panel:

  • Board hardware status indicator (STAT) - green

For details about this indicator, see Board Indicators.

Interfaces

Table 1 lists the type and function of each interface.

Table 1 Types and functions of the interfaces on the BMD4
Interface Type Function
IN LC Accesses the optical signals at 100 GHz channel spacing (C_EVEN multiplexed signals).
OUT LC Outputs the optical signals at 100 GHz channel spacing (C_EVEN multiplexed signals).
MON LC Connects to the input port on the MCA4 or the MCA8 board, for in-service monitoring of the signals routed to the OUT port.

The ratio of the MON port power to the OUT port power is 10:90, that is, the optical power at the MON interface is 10 dB lower than the optical power at the OUT interface, calculation formula: Pout(dBm) - Pmon(dBm) = 10 x lg(90/10) = 10 dB.

T01/R01 LC Transmits/Receives 12 wavelengths (193.80 THz to 196.00 THz) of optical signals with a 200 GHz channel spacing.
T02/R02 LC Transmits/Receives 12 wavelengths (193.70 THz to 195.90 THz) of optical signals with a 200 GHz channel spacing.
T03/R03 LC Transmits/Receives eight wavelengths (192.20 THz to 193.60 THz) of optical signals with a 200 GHz channel spacing.
T04/R04 LC Transmits/Receives eight wavelengths (192.10 THz to 193.50 THz) of optical signals with a 200 GHz channel spacing.

Laser Hazard Level

The laser hazard level of the board is HAZARD LEVEL 1M, indicating that the maximum power launched by the board ranges from 10 dBm (10 mW) to 21.3 dBm (136 mW).

Characteristic Code of the BMD4

The characteristic code of the BMD4 consists of one character, indicating the band adopted by the board.

Table 1 provides the details about the characteristic code of the BMD4.

Table 1 Characteristic code of the BMD4
Code Indication Description
The first character Band Indicates the multiplexing scheme adopted by the board. The value C represents the C band. The value L represents the L band.

For example, if the characteristic code of the BMD4 is C, it indicates that the optical signals are in the C band.

BMD4 Specifications

The specifications include the optical specifications, dimensions, weight, and power consumption.

Optical Specifications

Table 1 Optical specifications of the BMD4
Item Unit Value
Operating wavelength range nm 1529 - 1561
T0x/R0x channel spacinga GHz 200
IN/OUT channel spacing GHz 100
Insertion loss IN-T01

IN-T02

IN-T03

IN-T04

dB <= 5
R01-OUT

R02-OUT

R03-OUT

R04-OUT

dB <= 6
Isolationb IN->T01/T03@T02/T04

IN->T02/T04@T01/T03

dB >= 25
IN->T01@T03

IN->T03@T01

IN->T02@T04

IN->T04@T02

R01->OUT@R03

R03->OUT@R01

R02->OUT@R04

R04->OUT@R02

>= 13
Optical return loss dB >= 40
Directivity dB >= 45
PMD ps <= 0.5
Polarization dependent loss dB <= 0.5
Input optical power range dBm <= 23
a: T0x represents T01 to T04 ports. R0x represents R01 to R04 ports.b: In the case of T01/T03@T02/T04, this parameter refers to the isolation between any one of T01/T03 ports and any one of T02/T04 ports. It is the same case for other isolation item. T01/T02 ports are intended for blue band signals. T03/T04 ports are intended for red band signals.

Mechanical Specifications

  • Dimensions of front panel (H x W x D): 264.6 mm (10.4 in.) x 25.4 mm (1.0 in.) x 220 mm (8.7 in.)
  • Weight: 1.2 kg (2.7 lb.)

Power Consumption

Board Typical Power Consumption (W) Maximum Power Consumptiona (W)
TN11BMD4 0.2 0.3
a: The maximum power consumption is the power consumed by the board when it works normally under the highest ambient temperature.
 
 
 

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