Original OSN6800/O SN8800 Optical Booster Unit TN12OBU1 TN12OBU2 TN13OBU1 03030MVS TN13OBU101 Fiber Optic Equipment

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Description du produit

1.Product Overview

1.Basic information of the board

Attribute specification description

OptiX OSN 9800 series intelligent optical transmission platform

Board Name: Optical Amplification Unit Board (Extended C-band, Post amplifier)

Functionally positioned as a booster amplifier (BA) for use, it enhances the total optical power after combining and ensures that the signal enters the fiber with sufficient power, making it suitable for expanding C-band DWDM systems

Board type Optical Booster Unit (OBU)

Compatible with subracks such as OSN 9800 U series/M series 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 14.0 W

Maximum power consumption 17.0 W (normal operation at maximum ambient temperature)

Working temperature -5°C to+55°C

Key features include C-band amplification, high output power (+23dBm), adjustable gain, low noise figure, 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, usually connected to the output of the self multiplexer (M40)

OUT LC/UPC 1 optical signal output port, amplified signal output to fiber optic line

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

Optical signal amplification, as a post amplifier (BA), compensates for the insertion loss of the multiplexer by amplifying the power of the extended C-band multiplexed signal.It injects the signal into the optical fiber with sufficient power and is a key component at the transmitting end of the system

High output power, with a maximum output power of+23 dBm (saturated), provides sufficient input power and supports transmission links with longer spans or higher losses

Adjustable gain supports software adjustment of amplifier gain values (typical range 15-28 dB) to flexibly adapt to different output and input power requirements of the multiplexer, 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 constant fiber input power and improving system robustness

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 optimizes the optical path design, with a noise coefficient of ≤ 5.0dB (typical value), ensuring that the signal-to-noise ratio is not significantly degraded while amplifying the signal

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

4.Optical performance parameters

Table 1: Key Optical Indicators

Parameter specification remarks

Working wavelength range: 1528.8 nm -1567.6 nm Extended C-band, supporting 96 wave @ 50GHz system

Gain range of 15 dB to 28 dB software adjustable, with a step size of 0.5 dB

Maximum output power+23 dBm (saturated) can be set with software limits, typical operating point is+20/+22/+23 dBm

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

Input power range -25 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

Table 2: Typical performance under different output power settings

Minimum gain noise figure required for target output power and input power range

+20 dBm       -5 ~ +5 dBm 15~25 dB      ?4.8 dB

+22 dBm       -7 ~ +3 dBm 19~29 dB      ?5.0 dB

+23 dBm       -8 ~ +2 dBm 21~31 dB      ?5.2 dB

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 14.0 W

Maximum power consumption 17.0 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 OAU1 of the same series

Characteristics TN12OAU1 TN12OBU 1

Board type Universal Optical Amplifier Board (OBU) Rear Optical Amplifier Board (OBU)

Typical Applications OLA/BA/PA Universal BA (Post amplifier) Dedicated

Maximum output power+20 dBm+23 dBm (higher)

Gain range 15-28 dB 15-28 dB

Noise coefficient ? 5.0 dB ? 5.0 dB

Core value universality, flexible deployment of high output power, optimized sending end

8.Application scenarios

Core Value of Application Scenario Deployment Method

The extended C-band terminal station (OTM) is deployed after the transmitter multiplexer, serving as a post amplifier (BA) to inject the multiplexed signal into the fiber at a power of up to+23dBm, compensating for line losses and extending transmission distance

The sending end of the urban core ring network is located on the sending side of the ring network node, and the fiber power is increased to ensure that the signal has sufficient power budget for long-distance transmission in the ring network

The data center interconnection transmitter uses high output power as a BA at the DCI link transmitter to support longer relay free DCI transmission, reducing the need for repeaters

Deploying high loss link transmitters on links with high insertion losses (such as long spans and multiple connectors) compensates for additional losses through high output power to ensure system performance

The output amplifier of ROADM node is located inside the ROADM node to increase the power of the combined signal and compensate for the insertion loss of ROADM module, ensuring that the output power meets the requirements of the line

9.Maintenance and ordering information

Project Information

Component code TN12OBU 1 (specific version such as TN12OBU 101, etc.)

Ordering instructions: When placing an order, it is necessary to confirm the working band (extended C-band), target output power level, 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, output power calibration, gain testing, and OSC channel connectivity testing are required

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

Core Summary:

TN12OBU 1 is a rear mounted optical amplifier board specifically designed for extending the C-band transmitter on the OSN 9800 platform.Compared with the general-purpose OBU board, its core advantage lies in a higher output power (+23dBm), which is specifically optimized to enhance the input power of the composite signal.It is a key component of the OTM station and ROADM node transmitter.

Core values and positioning:

High output power:+23dBm maximum output, providing sufficient input power and supporting longer spans or higher loss links.

Dedicated optimization for sender: As a BA dedicated board, it is optimized for signal amplification scenarios after multiplexing, with more focused performance.

Flexible adaptation: 15-28dB gain adjustable, APC/AGC dual-mode, suitable for different power budget requirements.

Integrated OSC: Built in OSC multiplexing and demultiplexing, simplifying the optical path design at the transmitting end.

Excellent optical performance: ≤ 5.0dB noise figure, ≤ 1.0dB gain flatness, ensuring signal quality.

Application suggestion:

This board is a standard post amplifier for the extended C-band transmitter in the OSN 9800 wavelength division system, especially suitable for OTM stations, ROADM node transmitters, high loss links, and other scenarios that require high fiber input power. During deployment, it is necessary to set the output power or gain reasonably based on the output power of the multiplexer and the target input power of the line. For general amplification requirements such as OLA/PA, TN12OAU1 is a more suitable choice.