DWDM TN11RAU1 OSN 6800 OSN6800 Board TN11RAU106 HW RAU1

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.

Product Description

1.Product Overview

1.Basic information of the board

Attribute specification description

OptiX OSN 9800 series intelligent optical transmission platform (compatible with OSN 8800/6800)

Board name: Optical preamplifier unit board

Functional positioning as a preamplifier (PA), it amplifies weak optical signals after long-distance transmission with low noise to improve the signal-to-noise ratio at the receiving end

Board type: RAU (Receiver Amplifier Unit)

Compatible with subracks such as OSN 9800 U series/M series and OSN 8800/6800 that support TN series cards

Front panel dimensions: height x width x depth: 264.6 mm x 25.4 mm x 220 mm

Weight 1.0 kg

Typical power consumption of 12.0 W

Maximum power consumption 15.0 W (normal operation at maximum ambient temperature)

Working temperature -5°C to+55°C

Key features include low-noise preamplifier, C-band support, adjustable gain, automatic power control (APC), automatic gain control (AGC), integrated OSC processing, and online monitoring interface

2.Interface specifications

Interface Identification Interface Type Quantity Function Description

IN LC/UPC 1 optical signal input port, receiving weak optical signals from the line

OUT LC/UPC 1 optical signal output port, amplified signal output to splitter or receiver

SYS IN LC/UPC 1 system input port (spare)

SYS OUT LC/UPC 1 system output port (spare)

OSC IN LC/UPC 1 optical monitoring channel input port, receiving OSC signals

OSC OUT LC/UPC 1 optical monitoring channel output port, sending OSC signal

MON LC/UPC 1 online monitoring port, can be connected to an external spectral analyzer or OPM unit

3.Core functional characteristics

Functional Module Technical Description System Value

The low-noise preamplifier adopts an optimized design of erbium-doped fiber amplifier to amplify weak signals with low noise and improve the OSNR at the receiving end, which is the key to ensuring the performance of long-distance transmission systems

Adjustable gain supports software adjustment of amplifier gain values (typical range 15-25 dB) to flexibly adapt to different line losses and reception requirements, simplifying engineering planning

The OSC channel processing has built-in OSC multiplexing and demultiplexing function, which separates/merges the optical monitoring channel from the main optical signal to ensure independent transmission of out of band monitoring channels and achieve uninterrupted network management communication for business

Automatic power control (APC) supports constant output power mode, automatically adjusts pump power to maintain stable output power and cope with input power fluctuations, ensuring stable operation of subsequent units

Automatic Gain Control (AGC) supports constant gain mode, automatically adjusts output according to changes in input power, and flexibly adapts to different work scenarios

Low noise design noise factor ≤ 4.5 dB (typical value) to minimize amplifier degradation of signal-to-noise ratio

Online optical performance monitoring provides MON monitoring port, which can be connected to an external spectral analyzer to monitor signal spectrum, optical power, OSNR and other parameters in real time without interrupting business for optical layer performance diagnosis and optimization, improving operation and maintenance efficiency

Real time monitoring of pump laser to detect parameters such as pump drive current, back current, cooling current, pump temperature, etc.Monitoring of pump source health and warning of potential faults

4.Optical performance parameters

Table 1: Key Optical Indicators

Parameter specification remarks

The working wavelength range is 1529 nm -1561 nm in the C-band, which complies with the DWDM standard

Gain range of 15 dB to 25 dB software adjustable, with a step size of 0.5 dB

Maximum output power+10 dBm typical operating point

Noise figure ≤ 4.5 dB (typical value) @ maximum gain condition

Input power range -35 dBm to -5 dBm to ensure performance input range

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

Polarization related gain ≤ 0.3 dB is insensitive to polarization effects

Polarization related loss ≤ 0.3 dB

Return loss>45 dB Excellent return loss characteristics, reducing reflections

OSC working wavelength 1510 nm ± 10 nm (or 1625 nm ± 10 nm) standard OSC wavelength, optional

OSC insertion loss ≤ 1.5 dB OSC channel insertion loss

5.Monitoring and management functions

Monitoring Category Monitoring Parameter Management Function

Real time monitoring of amplifier working status for total input/output power of optical power monitoring, pump laser backlight power, and setting high and low threshold alarms

Pump laser monitoring pump current, pump temperature, pump output power monitoring pump source health, warning potential faults

Temperature monitoring board internal temperature and pump laser temperature to prevent overheating and damage, ensuring long-term stability

Gain/power monitoring ensures that the amplifier operates in the expected state by monitoring the actual gain value, actual output power, and locked state

Alarm management quickly locates faults such as input no light, abnormal output power, pump laser failure, and temperature exceeding, achieving preventive maintenance

6.Power consumption and environment

Parameter specifications

Typical power consumption of 12.0 W

Maximum power consumption 15.0 W (normal operation at maximum ambient temperature)

Working temperature -5°C to+55°C

Storage temperature -40°C to+70°C

Relative humidity 5% to 95% RH, no condensation

Air pressure requirement: 70 kPa to 106 kPa

7.Comparison with optical amplifier cards of the same series

Characteristics TN11OaU (Reference) TN11RAU1

Board type: Universal optical amplifier board, preamplifier board (PA)

Typical Applications: OLA/BA/PA Universal Receiver, PA Specific

Noise factor ≤ 5.5 dB ≤ 4.5 dB (lower)

Maximum output power+20 dBm+10 dBm (lower)

Gain range 15-30 dB 15-25 dB

Core value universality, extremely low noise, optimized reception performance

8.Application scenarios

Core Value of Application Scenario Deployment Method

The long-distance trunk receiving end is deployed before the OTM station splitter as a preamplifier to amplify weak signals with extremely low noise, improve the receiving OSNR, and ensure long-distance transmission performance

The receiving side of the ROADM node is located within the ROADM node.Before the line signal enters the splitter, the ROADM module and line losses are compensated to ensure the quality of the received signal

High sensitivity receiving systems are deployed in scenarios that require extremely high receiving sensitivity, such as ultra long distances and submarine cables, by using low-noise amplification to reduce the requirements for receiver sensitivity or extend the transmission distance

The data center interconnection receiving end is used as a PA at the DCI link receiving end to ensure the quality of the received signal and reduce the bit error rate

9.Maintenance and ordering information

Project Information

Component code TN11RAU1 (specific versions such as TN11RAU101, etc.)

Ordering instructions: When placing an order, it is necessary to confirm the working band (C-band) and OSC wavelength

On site operation supports hot plugging, and anti-static wrist straps should be worn during operation.Pay attention to cleaning the fiber optic connectors

After testing and verifying installation, gain calibration, power testing, and OSC channel connectivity testing are required

Spare parts management, as the core board of the receiving end, is recommended to configure spare parts at critical nodes of the network

Core Summary:

TN11RAU1 is a front-end optical amplifier board designed for the C-band receiving end in the OSN 9800 platform.Its core advantage lies in its extremely low noise figure (≤4.5dB), which is specifically optimized for low-noise amplification of weak signals.It is a key component to ensure the receiving performance of long-distance transmission systems.

Core values and positioning:

Extremely low noise: ≤ 4.5dB noise figure, minimizing amplifier degradation of signal OSNR.

Receiver specific optimization: optimized for weak signal amplification scenarios, with a gain range of 15-25dB and moderate output power.

Flexible adaptation: APC/AGC dual-mode, adjustable gain, suitable for different line conditions.

Integrated OSC and monitoring: Built in OSC multiplexing and comprehensive pump/environment monitoring, simplifying system design and improving maintainability.

C-band compatibility: Perfectly compatible with existing C-band DWDM systems.

Application suggestion:

This board is a standard preamplifier for the C-band receiving end in the OSN 9800 wavelength division system, especially suitable for long-distance trunk lines, ROADM node receiving sides, submarine cable systems, and other scenarios that require high receiving sensitivity. During deployment, it is necessary to set the gain reasonably based on the output power of the line and combine it with iMaster NCE to achieve automated operation and maintenance of the optical layer. For the requirement of expanding the C-band, the corresponding preamplifier board (such as TN12RAU1) can be selected.