Sistema WDM semiactivo para transmisión frontal 5G
Descripción del producto
Después de implementar redes 5G, la densidad de las estaciones base será de 2 a 4 veces mayor que la de las redes 4G, y las limitaciones de fibra serán el principal problema que se enfrentará en el despliegue de fronthaul 5G. Para hacer frente al rápido despliegue de estaciones base y ahorrar eficazmente recursos de fibra en despliegues de redes 4G y 5G, los operadores han adoptado una solución que combina multiplexor WDM y módulos de luces de colores para lograr una cobertura rápida y de bajo costo. Sin embargo, también existen deficiencias y puntos débiles en las aplicaciones prácticas :
Las soluciones que utilizan tecnologías activas WDM u OTN pueden resolver las dificultades de gestión de redes y selección de rutas primarias/de respaldo en rutas ópticas, pero también enfrentan desafíos como altos costos y dificultades en el suministro de energía remota.
Con base en acumulaciones técnicas e investigaciones previas sobre WDM activo y pasivo, y una comprensión profunda y continua combinada con los puntos débiles de los clientes con respecto a las demandas de transporte de equipos de fronthaul, Guangzhou Rui Dong ha introducido un WDM semiactivo como una solución para el fronthaul de estaciones base.
La solución WDM semiactiva utiliza equipos activos en el extremo local y equipos pasivos en el extremo remoto, lo que facilita la implementación y el mantenimiento. A través de equipos locales, admite funciones de gestión de red, protección de línea y localización rápida de fallos de OTDR. Los métodos de mantenimiento son convenientes y flexibles y cumplen con requisitos de alta confiabilidad. Esta solución alivia significativamente la presión sobre los recursos de fibra, al mismo tiempo que equilibra las ventajas de costo, administración y protección, ayudando así a los operadores en el despliegue rápido, de bajo costo y de gran ancho de banda de redes fronthaul 5G.
Esta solución es adecuada para escenarios con recursos de fibra reducidos en estaciones base extendidas, configuraciones de red simples de doble estrella o de tipo bus (que cubren escenarios como autopistas, ferrocarriles de alta velocidad, túneles, puentes, etc.). Cuenta con módulos de luz de colores ubicados en equipos AAU y DU, que utilizan tecnología WDM para la transmisión para ahorrar recursos de fibra y admitir funciones de onda ascendente/descendente OADM. También puede utilizar cables de fibra de doble ruta para la protección del servicio de fronthaul, al tiempo que admite fibras de fronthaul 4G heredadas, logrando un fronthaul unificado para 4G/5G.
Fig.1 Diagrama de un esquema WDM semiactivo
La arquitectura de red de multiplexación por división de longitud de onda (WDM) semiactiva se puede dividir en topologías de estrella y bus según escenarios específicos.
Figura 2 Redes semiactivas de estrellas WWD
Figura 3 Red de bus WDM semiactiva
Vista del dispositivo
Dispositivo de equipo final local FW6600A (ranura 1U4 activa)
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Módulo de combinación y división remota (pasivo) |
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Equipo final local FW6600B (ranura 2U8 activa)
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Bastidor de 19 pulgadas (montaje remoto en gabinete) |
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Equipo final local FW6600C (ranura 4U16 activa)
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Caja exterior resistente al agua y al polvo (pared/poste remoto) |
Características
It supports comprehensive access to wireless fronthaul and other services, taking into account wireless fronthaul, private line, and home broadband services, and maximizes the value of fronthaul networks;
Maximize optical fiber saving, one fiber can carry 9 channels of 4G & 5G fronthaul CPRI/eCPRI services;
The local side is active and the remote end is passive, and WDM technology is used to extend the physical channel of pure transparent transmission, without delay and jitter introduction;
It supports the monitoring function of the luminous power of each channel, which is easy to maintain and locate faults;
It supports 1:1 protection at the optical layer, and the protection switching time is less than 20 ms, improving network reliability;
The optical-layer protection function card can be selected according to the application scenario, and supports hot-swap and power-off/power-on-hold functions to ensure that the device does not affect service operation in the event of a power-off;
It supports SNMP, Web and other graphical interface network management;
Local end equipment active supports AC 220V, DC -48V power supply optional, and 1+1 power input protection;
The installation method is flexible, the central office equipment supports rack-mounted installation and wall-mounted installation, and the remote equipment supports rack-mounted, pole-mounted and wall-mounted installation, which is easy to install and plug-and-play;
The remote outdoor device meets the requirements of the IP67 standard and supports pole and wall mounting.
Local End Equipment
FW6600A - 1U Chassis
1U Chassis Front View
1U Chassis Back View
FW6600A is designed with a 1U standard 19-inch rack-mounted plug-in card structure, providing 4 business slots, 1 main control card slot, 1 fan slot, and 2 power slots (at the rear). It uses a front panel outlet method, with all optical interfaces and network management interfaces designed on the front;
The FW6600A-type 1U chassis has four service slots, and the NMS card occupies one slot, and can be inserted into a maximum of three service cards, which can support convergence in three optical directions.
Technical Specifications of FW6600A 1U Chassis
The name of the metric |
metrics |
|
Dimensions: |
482(W)×44(H)×320(D)(mm) |
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Weight (fully loaded) |
7.5kg |
|
TypicalPowerConsumption |
<30W |
|
Protection Features |
Hot-swappable NE management card without affecting existing services when failing |
|
StandardOperating Voltage: |
DC |
-36 V-72V |
AC |
90V -260V |
FW6600B - 2U Chassis
2U Chassis Front View
2U Chassis Back View
FW6600B is designed with a 2U standard 19-inch rack-mounted plug-in card structure, providing 8 business slots, 1 main control card slot, 1 fan slot, and 2 power slots (at the rear). It uses a front panel outlet method, with all optical interfaces and network management interfaces designed on the front;
The FW6600B-type 2U chassis has 8 service slots, and the NMS card occupies 1 slot, and can be inserted into a maximum of 7 service cards, which can support convergence in 7 optical directions.
Technical Specifications of FW6600B 2U Chassis
The name of the metric |
metrics |
|
Dimensions |
486(W)×86(H)×352(D)(mm) |
|
Weight (fully loaded) |
13.5kg |
|
TypicalPowerConsumption |
<50W |
|
Protection Features |
Hot-swappable NE management card without affecting existing services when failing |
|
StandardOperating Voltage: |
DC |
-36 V-72V |
AC |
90V -260V |
FW6600C -4U chassis
4U chassis front
4U chassis back
The FW6600C chassis adopts a 4U standard 19-inch rack-mount and plug-in card structure, and provides 16 service slots, 1 main control board slot, 1 fan slot, and 2 power supply slots in a single chassis. The front panel cable outlet mode is adopted, and all optical interfaces, power supply and network management interfaces are designed on the front;
The FW6600C-type 4U chassis has 16 service slots, and the NMS card occupies 1 slot, and can insert up to 15 service boards, which can support the convergence of 15 optical directions.
FW6600C 4U Chassis specifications
The name of the metric |
metrics |
|
Dimensions |
483(W)×178(H)×280(D)(mm) |
|
Weight (fully loaded) |
15.5kg |
|
TypicalPowerConsumption |
<80W |
|
Protection Features |
Hot-swappable NE management card without affecting existing services when failing |
|
StandardOperating Voltage: |
DC |
-36 V -72V |
AC |
90V -260V |
waves of Local End Equipment Mux&DeMux
Functional structure:
6 waves of Local End Equipment Mux&DeMux Functional structure (with optical power monitoring and optical protection)
Optical performance indicators
parameter |
unit |
index |
Number of channels |
|
6 |
Center wavelength |
nm |
1271、 1291、 1311、 1331、 1351、 1371 |
Center wavelength deviation |
nm |
±1.5 |
-1dB channel bandwith |
nm |
>14 |
Banding flatness |
dB |
<0.5 |
Mux&DeMux Channel insertion loss |
dB |
<1.5 |
Mux&DeMux Channel insertion loss uniformity |
dB |
<1.0 |
Adjacent channel isolation |
dB |
>25 |
Non-adjacent channel isolation |
dB |
>35 |
Wavelength Heat stability |
nm/℃ |
<0.002 |
Insertion loss heat stability |
dB/℃ |
<0.007 |
Polarization-related losses |
dB |
<0.2 |
Return loss |
dB |
≥45 |
Working temperature |
℃ |
-40~+85 |
Storage temperature |
℃ |
-40~+85 |
Working humidity |
|
5%~95% RH, No condensation |
The number of slots in the chassis |
|
1slot |
OTDR monitoring port |
|
With OTDR monitoring port (wavelength 1625/1650nm) optional |
Optical protection |
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It can provide single-fiber main and standby optical path protection |
Optical protection switching time |
|
<20ms |
Optical power detection range |
|
-50 dBm ~+25dBm |
Optical interface |
|
LC/UPC |
Indicator light description:
Pri:The main bypass indicator light, the light is on to indicate the main road, and the waiting to go off means the backup road;
Auto:Working mode indicator, the light on indicates automatic mode, and the light off indicates manual mode;
R1、R2:The light collection power alarm indicator of the main and backup roads of light protection indicates that the light collection is normal, and the light off indicates that the light collection is abnormal;
Button description:
SET:Press and hold for 5S to switch the working mode, and in automatic mode, short press the button to switch the active and standby routes.
Remote passive WDM
Remote 1U rack
The remote 1U rack is a 3-slot, 1U-high passive rack, which is suitable for inserting 3 remote combiner splitters, which can realize the compact installation of the remote combiner and splitter and save space in the equipment room. The 1U rack can be installed in a 19-inch cabinet.
n Size: 1U, 44 mm (H)× 438 mm (W), × 132 mm (D)
Figure 2.2.1 View of a remote 1U rack
Remote 3U rack
The 3U rack is a 16-slot, 3U-high passive rack, which is suitable for vertically inserting 16 remote combiners and splitters, which can realize the compact installation of remote combiners and save space in the computer room. The 3U rack can fit in a 19-inch cabinet.
n Size: 3U, 120 mm (H), 430 mm (W×), × 133 mm (D)
Figure 2.2.2 Rack view of the remote OPC1000-16
Remote outdoor boxes
The outdoor dust-proof box is a special box for outdoor wall-mounted or pole-mounted remote WDM system, which supports 1 or 2 built-in remote combination splitters, meets the requirements of IP67 standards, has a lightweight structure and is easy to install.
Size:365 mm (length)×290mm (width)×100 mm (height)
Figure 2.2.3 View of the remote outdoor dust box
waves remote passive WDM Mux&DeMux
Product illustration:
6 waves remote passive WDM Mux&DeMux(optical protection)
Functional structure:
Functional structure of the remote passive WDM
Optical performance indicators
parameter |
unit |
index |
Number of channels |
|
6 |
Center wavelength |
nm |
1271、 1291、 1311、 1331、 1351、 1371 |
Center wavelength deviation |
nm |
±1.5 |
-1dB channel bandwith |
nm |
>14 |
Banding flatness |
dB |
<0.5 |
Mux&DeMux Channel insertion loss(without optical protection) |
dB |
<1.2 |
Mux&DeMux Channel insertion loss (with Optical Protection) |
dB |
<4.5 |
Mux&DeMux Channel insertion loss uniformity |
dB |
<1.0 |
Exp interface loss uniformity |
dB |
<1.2 |
Adjacent channel isolation |
dB |
>25 |
Non-adjacent channel isolation |
dB |
>35 |
Wavelength Heat stability |
nm/℃ |
<0.002 |
Insertion loss heat stability |
dB/℃ |
<0.007 |
Polarization-related losses |
dB |
<0.2 |
Return loss |
dB |
≥45 |
Working temperature |
℃ |
-40~+85 |
Storage temperature |
℃ |
-40~+85 |
Working humidity |
|
5%~95% RH, 无凝结 |
colourful module
colourful module 25G/10km CWDM colourful module
Based on the wireless fronthaul passive wavelength division multiplexing system, the 25Gb/s SFP28 CWDM colourful module conforms to the MSA protocol, has the characteristics of low power consumption, small size, multi-rate, etc., is compatible with eCPRI (25G), CPRI 10, 25GE and other network applications, with a maximum transmission distance of up to 10 kilometers, RoHS compliant, and supports digital diagnostic functions.
Working temperature Commercial grade:0°C-+70°C Industrial grade:-40°C-+85°C |
Storage temperature Temperature:-40°C-+85°C Humidity:5%~95%no condensation |
Optical performance indicators
Product model |
Tx wavelength (nm) |
Rx wavelength (nm) |
Distance (km) |
Tx optical power range (dBm) |
Overload Optical Power (dBm) |
Ext (dB) |
Receiver Sensitivity (dBm) |
RSPD-25GC10--27 |
1271 |
1260~1620 |
10km |
0~+6 |
>+2 |
>3.5 |
<-13.8 |
RSPD-25GC10--29 |
1291 |
||||||
RSPD-25GC10--31 |
1311 |
||||||
RSPD-25GC10--33 |
1331 |
||||||
RSPD-25GC10--35 |
1351 |
||||||
RSPD-25GC10--37 |
1371 |
10G/10km CWDM colourful module
The 10Gb/s SFP+ CWDM colourful module based on the wireless fronthaul passive wavelength division multiplexing system conforms to the MSA protocol, has the characteristics of low power consumption, small size, multi-rate, etc., is compatible with CPRI 7/8, 10GE, STM-64 and other network applications, with a maximum transmission distance of up to 10 kilometers, RoHS compliant, and supports digital diagnostic functions.
Working temperature Commercial grade:0°C-+70°C Industrial grade:-40°C-+85°C |
Storage temperature Temperature:-40°C-+85°C Humidity:5%~95%no condensation |
Optical performance indicators
Product model |
Tx wavelength (nm) |
Rx wavelength (nm) |
Distance (km) |
Tx optical power range (dBm) |
Overload Optical Power (dBm) |
Ext (dB) |
Receiver Sensitivity (dBm) |
RSPD-10GC10-27 |
1271 |
1260~1620 |
10km |
0~+3 |
>+1 |
>4 |
<-14.4 |
RSPD-10GC10-29 |
1291 |
||||||
RSPD-10GC10-31 |
1311 |
||||||
RSPD-10GC10-33 |
1331 |
||||||
RSPD-10GC10-35 |
1351 |
||||||
RSPD-10GC10-37 |
1371 |
NMS function
The semi-active wavelength division multiplexing system has the management function of central and remote devices, and supports configuration management, fault management, performance management, network topology management and other major functions. The network management function ensures that the requirements of monitoring, management, and production convenience in the overall principles of 5G fronthaul are met.
The basic functions are as follows:
(1) User and user group management
(2) User rights management
(3) Copia de seguridad y recuperación de datos del sistema
(4) El sistema tiene función de gestión de registros.
(5) El sistema admite la creación, consulta, eliminación, modificación y otras funciones de gestión de elementos de la red (equipos de oficina central, equipos remotos) y otros.
(6) El sistema admite las capacidades estadísticas y de consulta de los slots, unidades, puertos de servicio, canales y otros parámetros del equipo de la oficina central.
(7) El sistema admite la gestión de configuración del equipo de la oficina central :
(8) El sistema admite la consulta y configuración de la gestión de protección :
(9) El sistema admite funciones como consulta y estadísticas de alarmas, confirmación de alarmas, borrado de alarmas, protección de alarmas y consulta de filtrado de alarmas.
(10) El sistema permite a los usuarios especificar y consultar el monitoreo del desempeño de los elementos de la red;
(11) El sistema admite la gestión de la topología de la red;
Función de alarma SMS opcional ;
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