LOA: 8 X Any-rate MUX OTU2 Wavelength Conversion Board TN11LOA---OSN 9800 WDM-Optical Transmission Network

Yantai Boxin International Trading Co., Ltd. is a professional comprehensive trading service provider for communication equipment.With warehouses established in Yantai and Hong Kong, we have built a complete and localized network for delivering communication products and services.In 2018, Yantai Boxin International Trading Co., Ltd. set up its international sales department in Yantai, China.Based in China, we operate in emerging markets across Southeast Asia, India, the Middle East, Africa, Europe, and the United States. 

Yantai Boxin International Trading Co., Ltd. supplies products to various telecom operators, meeting their needs for supplementing and expanding 2G/3G/4G/5G network stations.Our current equipment portfolio covers brands such as Nokia, Ericsson, Alcatel, Huawei, ZTE, ZTT, and FiberHome. 

We expand our international market share by offering high-quality products, excellent service, competitive pricing, and timely delivery.Feel free to contact us for more information.

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1.Product Overview

Table 1: Basic Identification and Specifications

Attribute specification description

OptiX OSN 9800 series intelligent optical transmission platform

Board name: Optical power amplifier board

Functional positioning line optical signal power amplification, used to compensate for fiber optic transmission loss and extend transmission distance

Type of board: Unidirectional optical amplifier board (can be used for positions such as BA, PA, LA according to configuration)

Physical dimensions: height x depth: 30.0 mm x 220.0 mm

The slot requirement requires one OA sub rack or universal sub rack for the optical amplifier board card slot

Typical power consumption 45W (full load working state)

Working temperature -5°C to+55°C

Key features support C-band amplification, integrated optical monitoring channel, and adjustable gain

2.Interface and Optical Characteristics

Table 2: Optical Interface Specifications

Interface type, number of connectors, functional description

Optical input port (IN) LC/UPC 1 receives weak optical signals from the line

Optical output port (OUT) LC/UPC 1 outputs the amplified optical signal to the line

Monitoring interface LC/UPC 2 is used for receiving and transmitting optical monitoring channels (OSCs)

The communication interface communicates with the system main control board through the backplane, reporting status and receiving instructions

Table 3: Core Optical Amplification Parameters

Parameter specification remarks

Working band C-band (1529-1562 nm) supports 40/80 wave systems

The gain range is adjustable by software from 20 dB to 33 dB, with a step size of 0.5 dB

Maximum output power+23 dBm (typical value) saturated output power

Noise figure ≤ 5.0 dB (typical value) @ maximum gain condition

Input power range -30 dBm to+3 dBm to ensure performance input range

Gain flatness ≤ 1.0 dB (typical value) across the entire frequency range

Polarization related gain ≤ 0.3 dB

3.Magnification function and application configuration

Table 4: Typical Application Configuration Modes

The position of application mode in the system, main functions, and typical settings of gain

The post amplifier (BA) increases the total optical power after combining with the transmitter, ensuring an input power of 15-25 dB

The preamplifier (PA) enhances the weak signal after long-distance transmission before the receiver splitter, improving the receiving sensitivity by 25-33 dB

Line amplifier (LA) compensates for inter segment fiber loss in the middle of the fiber link, extending the transmission distance by 20-30 dB

Power amplifier (OBA) with multiple positions for universal power amplification, set according to requirements

4.Monitoring and management functions

Table 5: Monitoring Parameters and Alerts

Monitoring Category Monitoring Parameters Alarm Type

Input optical performance, input optical power, input optical wavelength, input no light, input optical power too high/too low

Output optical performance, total output power, indirect power of each channel, high/low output power, pump laser failure

Amplifier status pump laser temperature, bias current, operating voltage, module temperature abnormality, laser degradation, power failure

Gain and flatness actual gain value, gain lock state, gain slope gain exceeding limit, gain loss control, flatness abnormality

System monitoring of OSC channel status, communication status, card in place status, OSC loss, communication interruption, card failure

5.Protection and reliability

Table 6: Protection mechanism

Protection type, implementation method, protection purpose

Automatic power reduction (APR) detects input light loss or fiber breakage, automatically and quickly reducing output power to prevent high-power laser output from endangering personnel safety after fiber breakage

Automatic Power Shutdown (APS) automatically shuts down the pump laser to protect the amplifier itself and downstream equipment in the event of a serious malfunction

Gain locking control automatically adjusts the pump power to maintain a constant gain and ensure stable output during input power fluctuations

Temperature protection monitoring key temperature points, automatic adjustment or alarm when exceeded to prevent overheating and damage

Pump redundancy adopts a multi pump design (if applicable) to improve reliability, and can still work in the event of a single pump failure

6.Typical performance indicators

Table 7: Detailed Performance Indicators

Typical values of performance indicators and conditions

Working wavelength range -1529-1562 nm

Maximum total input power guarantee performance+3 dBm

Minimum total input power guaranteed gain -30 dBm

Polarization mode dispersion -<0.5 ps

Polarization related loss -<0.3 dB

Output power stability for 24 hours, constant temperature ± 0.3 dB

Gain stability for 24 hours, constant temperature ± 0.3 dB

Switching time from off to stable output<1 second

APR response time input signal lost to power drop to safe value<1 millisecond

7.Application scenarios and networking

Table 8: Typical Networking Applications

TN11LOA configuration suggestion for scene transmission distance requirements

Short distance urban transmission<80 km only requires BA or PA, may not require LA

Medium distance regional trunk lines of 80-500 km require BA+multiple LA+PA combinations

Long distance national trunk lines>500 km require BA+multi-level LA (regular configuration)+PA, fine planning for gain

Complex ROADM network with multiple distances configured with OA in multiple optical directions, serving as the amplification unit for ROADM

8.Maintenance and configuration requirements

Table 9: Key points for installation and maintenance

Project requirements and specifications

Before deploying the optical power budget, a detailed system optical power budget calculation must be carried out to determine the quantity, location, and gain settings of the OA.

High quality single-mode fiber jumpers are used for fiber optic connections, and the connector end face must be clean to avoid contamination and reflection.

Ensure good ventilation of the sub rack through heat dissipation and ventilation, and avoid local overheating caused by the continuous and dense placement of multiple OA boards.

The monitoring channel ensures that the OSC channel (1510nm or 1625nm, etc.)is functioning properly, which is crucial for managing remote OA.

Software configuration allows for the correct configuration of OA's working mode, target gain/output power, APR/APS enable status, etc.through network management.

The safety warning output port may emit high-power invisible laser, and the laser must be turned off or protective goggles must be worn during fiber breakage or maintenance.

As a key component of the system, it is recommended to allocate an appropriate proportion of spare parts according to the network size.

Core Summary:

TN11LOA is a key board used for C-band optical signal amplification in the OSN 9800 system. It is not an " intelligent " board that handles business, but an infrastructure board that provides " physical " support for business signals.

Core values:

Extension distance: Compensating for fiber loss is the foundation for achieving transmission over hundreds to thousands of kilometers.

Enhance system margin: Ensure that the receiving signal has sufficient signal-to-noise ratio (OSNR).

System flexibility: By adjusting the gain, it can adapt to different loss optical amplifier segments and simplify engineering planning.

Relationship with EDFA:

TN11LOA is essentially an integrated board implementation of an erbium-doped fiber amplifier (EDFA) module.It integrates erbium-doped fiber, pump laser, optical multiplexer, monitoring circuit, etc.into a pluggable board.

Role in the network:

Like a " gas station " or " relay station " on a highway, without it, the energy of the optical signal would be exhausted in the fiber optic cable and unable to reach distant places. Its performance, such as noise figure and output power, directly affects the transmission distance and total number of supported wavelengths of the entire wavelength division system. In system design and maintenance, the core of optical power and OSNR budget revolves around the performance of OA.