Brand New RPC TN51RPC TN97RPC TN11CRPC01 TN11CRPC03 Extended C-Band Forward Raman Processing Board

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: C-band Raman pump board

Functional positioning provides C-band backward distributed Raman fiber amplification, achieving ultra long distance and low-noise signal transmission

Board type: Optical amplification processing board (Raman pump board)

Adaptation subrack OSN 9800 universal platform subrack, OSN 8800 T64/T32/T16 subrack, OSN 8800 universal platform subrack, OSN 6800 subrack

Occupy 1 slot

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

Weight 1.1 kg

Typical power consumption 22 W

Maximum power consumption of 26 W (normal operation at maximum ambient temperature)

Working temperature -5°C to+55°C

Initial software version V100R005C00

Key features: C-band distributed Raman amplification, backward pump mode, high pump power (up to 1W), ultra-low effective noise figure, integrated OPM monitoring, automatic turn off of reflected light, front panel interlock switch

2.Interface specifications

Interface Identification Interface Type Quantity Function Description

LINE LC/UPC 1 line side port, connected to fiber optic lines, used for injecting pump light and receiving signal light

SYS LC/UPC 1 system side port, connected to a multiplexer, splitter, or other unit

MON LC/UPC 1 online monitoring port, can be connected to spectral analyzer or OPM unit, real-time monitoring of signal spectrum, optical power and other parameters

Interlock switch mechanical switch 1 front panel interlock switch, used to control the on/off of Raman laser pump to ensure safe operation

3.Core functional characteristics

Functional Module Technical Description System Value

Distributed Raman amplification utilizes the nonlinear effects of optical fibers to directly provide signal gain in fiber optic lines.Compared to centralized EDFA, it can significantly improve the optical signal-to-noise ratio (OSNR) and extend the transmission distance

The C-band supports operation in the C-band (1529-1561 nm) and is compatible with mainstream DWDM systems.It is suitable for traditional C-band wavelength division systems and can be seamlessly integrated with existing equipment

The backward pumping mode adopts the backward pumping method, and the pump light and signal light are transmitted in reverse to effectively reduce the influence of pump noise on the signal, achieving better OSNR performance and suitable for multi span systems

High pump output power outputs high-power Raman pump laser, up to 1W (30 dBm), providing sufficient distributed gain for long-distance optical fibers and compensating for transmission losses

Pump power control supports continuous adjustable pump power, software can set target power to adapt to different link conditions, optimize gain and nonlinear balance

When the reflected light power exceeds 15 dBm, the laser will be automatically turned off to prevent high-power reflection from damaging the laser or causing damage to the fiber end face

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 detection of pump drive current, back current, cooling current, pump temperature, and board ambient temperature through alarm and performance monitoring;Support comprehensive monitoring of equipment health through return loss detection and early warning of potential faults

4.Optical performance parameters

Table 1: Key Optical Indicators

Parameter specification remarks

Working wavelength range (signal): 1529 nm -1561 nm in the C-band, compliant with DWDM standards

The pump wavelength range is approximately 1425-1465 nm, which is a typical Raman pump band

Pump output power up to 1 W (30 dBm), software adjustable, continuously adjustable

Pump mode backward pump fixed backward pump

Channel gain (G.652 fiber) 12 dB~18 dB depends on pump power and fiber type

Channel gain (G.654 fiber) 15 dB~22 dB Better gain on low loss fiber

When the effective noise figure is less than -1.5 dB (typical value) and mixed with EDFA, it can significantly improve the overall noise performance

Polarization related gain ≤ 0.5 dB is insensitive to polarization effects

Polarization related loss ≤ 0.3 dB

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

Online monitoring port MON port coupling ratio typical -20 dB

Automatic shutdown of laser safety protection mechanism when reflected light detection threshold>15 dBm

Table 2: Typical Raman Gain under Different Fiber Types

Fiber type pump power typical Raman gain

G. 652 600 mW approximately 15 dB

G. 652 1 W approximately 18 dB

G. 654E 600 mW approximately 18 dB

G. 654E 1 W approximately 22 dB

LEAF/G.655 600 mW approximately 16 dB

5.Security and protection mechanisms

Implementation method of protection mechanism and protection purpose

When the reflected light power exceeds 15 dBm, the laser will be automatically turned off to prevent high-power reflection from damaging the laser or causing damage to the fiber end face

Front panel interlock switch mechanical switch controls laser power on/off to ensure operator safety and avoid live plugging and unplugging

The temperature protection board automatically adjusts or shuts off when the temperature exceeds the limit to prevent overheating and damage, ensuring long-term reliability

Real time monitoring of pump current, alerting and warning of pump source faults in case of abnormalities

6.Compatible with subrack and slot requirements

Sub rack type effective slot position

OSN 8800 T64 subracks IU1-IU8, IU11-IU42, IU45-IU68

OSN 8800 T32 subracks IU1-IU8, IU12-IU27, IU29-IU36

OSN 8800 T16 subrack IU1-IU8, IU11-IU18

OSN 8800 Universal Platform Sub Frame IU3-IU16

OSN 6800 subracks IU1-IU8, IU11-IU16

OSN 9800 Universal Platform Subracks IU1-IU15

7.Comparison with Raman cards of the same series

Features TN11CRPC TN51RPC TN51ROP

Working band C-band C-band C-band

Pump output power 27-35 dBm, maximum 30 dBm (1W), maximum 29 dBm

Pump mode backward pump backward pump (fixed) forward/backward configurable

Typical gain (G.652)>18 dB 12-18 dB 10-18 dB

Effective noise figure<-1.0 dB<-1.5 dB<-2.0 dB

Line fiber quality monitoring without support

FCD function is not supported or available

Typical power consumption 8 W 22 W 35 W

Early initial software version V100R005C00 V100R006C00

Applicable System C-band Traditional System C-band Medium to Long Range C-band Long Range+Intelligent Operation and Maintenance

8.Application scenarios

Core Value of Application Scenario Deployment Method

C-band medium to long-distance backbone transmission is deployed in fiber optic lines, providing distributed Raman amplification to significantly extend the distance of wireless relay transmission and reduce the construction of relay stations

The low-noise characteristics of Raman amplification with hybrid amplification structure composed of EDFA amplification and EDU/OBU EDFA cards can effectively improve the system OSNR and support high-order modulation formats

The multi span system adopts a backward pumping mode, combined with line amplification to optimize the OSNR of each span and improve overall system performance

Upgrading old fiber optic links utilizes Raman amplification to enhance the transmission performance of aged fibers without the need for fiber replacement, thereby increasing system capacity and transmission distance and protecting existing investments

Nodes with high security requirements utilize reflected light to automatically turn off and interlock switches, enhancing operational safety and protecting the safety of maintenance personnel and equipment

9.Maintenance and ordering information

Project Information

Component code TN51RPC

Ordering instructions: When placing an order, it is necessary to confirm the fiber type to determine the applicable gain range

High power laser safety warning for on-site operation: Strictly follow laser safety regulations during operation, and use interlock switches or network management to turn off the pump before operation

After testing and verifying installation, pump power calibration, reflected light detection, and amplification performance testing are required

Spare parts management, as the core component of ultra long distance transmission, is recommended to configure spare parts at critical nodes

Software dependency requires support from the host software version (V100R005C00 and above)

Compatibility needs to be used in conjunction with FIU boards (such as TN14FIU/TN16FIU) and EDFA

Core Summary:

TN51RPC is a Raman pump board for long-distance transmission in the C-band on the OSN 9800 platform.Through distributed Raman amplification technology, it directly provides signal gain in the fiber optic line, achieving lower noise figure and longer transmission distance than traditional EDFA.It adopts a fixed backward pump mode, with a pump power of up to 1W (30 dBm), providing 12-18dB Raman gain on G.652 fiber and 22dB on G.654E fiber.The board integrates safety mechanisms such as automatic reflection light shutdown and front panel interlock switch to ensure the safety of high-power operation.Compared to TN11CRPC, TN51RPC provides higher pump power and gain capability; Compared to TN51ROP, it does not have forward pumping and intelligent operation and maintenance functions, but has lower power consumption.

Core values and positioning:

Advantages of distributed amplification: The effective noise figure is less than -1.5dB, and when mixed with EDFA, it can significantly improve the system's OSNR.

High pump power: up to 1W, providing sufficient gain for long-distance transmission.

Mature and reliable: adopting classic backward pump design, compatible with existing C-band systems.

Enhanced security: reflected light automatically shuts off, front panel interlock switch, protecting personnel and equipment.

Application suggestion:

This board is suitable for scenarios such as backbone networks that require long-distance transmission in the C-band, high OSNR requirements, and upgrades to old fiber optics. During deployment, it is necessary to select the appropriate pump power based on the fiber type and use it in conjunction with the FIU board and EDFA, strictly following the safety operation regulations for high-power lasers. For scenarios that require forward pumping or more advanced intelligent operation and maintenance functions, TN51ROP or TN97ERPC can be considered.