6ch
12ch
3U-

6CH / 12CH CWDM for 4G/5G fronthaul System

In 4G/5G fronthaul system, if use optical fiber direct to connect RRU and DDU, it is simple, but it tales up a lot of optical fiber resources, and many times, the optical fiber resources are scare. In this case, if use CWDM system, can save your fiber resources. Central office and remote data station for the third type are both with passive equipment, also being simplified as WDM optical transceiver and passive multiplexer & demultiplexer, which need to been confirmed their installations on data transport equipment. Therefore, from the perspective of network construction, operation, and maintenance, the first 2 types of mobile fronthaul Network structure are preferred over the third one in reality

6CH / 12CH CWDM for 4G/5G fronthaul System

In 4G/5G fronthaul system, if use optical fiber direct to connect RRU and DDU, it is simple, but it tales up a lot of optical fiber resources, and many times, the optical fiber resources are scare. In this case, if use CWDM system, can save your fiber resources.

As 5G technology is accelerating its large-scale commercial deployment, the number of 5G communication base stations built up by operators is expected to increase exponentially in the next few years. 5G fronthaul is the essential part of 5G network transmission. The fronthaul technology solution based on wavelength division multiplexing (WDM) has become the focus of the industry. This article will present and evaluate 5G fronthaul demand for 25G WDM technology, typical types of 5G fronthaul WDM technical solutions, 25G LAN-WDM technical solutions, and its standardization.

6CH and 12CH waves passive CWDM Mux&DeMux

 

 

6CH  CWDM for 4G/5G fronthaul System 12CH  CWDM for 4G/5G fronthaul System

parameter

unit

6CH

 12CH 

Number of channels

　

6

 12

Center wavelength

nm

1271、 1291、 1311、 1331、 1351、 1371

 1271、 1291、 1311、 1331、 1351、 1371、1471、 1491、 1511、 1531、 1551、 1571

Center wavelength deviation

nm

±1.5

 ±1.5

-1dB channel bandwith

nm

>14

 >14

Banding flatness

dB

<0.5

 <0.5

Mux&DeMux Channel insertion loss

dB

<1.2

 <1.8

Mux&DeMux Channel insertion loss uniformity

dB

<1.0

 <1.0

Adjacent channel isolation

dB

>30

 >30

Non-adjacent channel isolation

dB

>45

 >45

Wavelength Heat stability

nm/℃

<0.002

 <0.002

Insertion loss heat stability

dB/℃

<0.007

 <0.007

Polarization-related losses

dB

<0.2

 <0.2

Return loss

dB

≥45

 ≥45

Working temperature

℃

-40～+85

 -40～+85

Storage temperature

℃

-40～+85

 -40～+85

Working humidity

 

5%～95% RH， no condensation

 5%～95% RH， no condensation

Dimensions

mm

 130*100*25mm

 130*100*25mm

 

CWDM 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.
 

Product model

Tx wavelength

(nm)

Distance

(km)

Tx optical power range

(dBm)

Overload Optical Power (dBm)

Ext (dB)

Receiver Sensitivity (dBm)

3CC-SFP28-27-LR

1271

10km

0~+6

>+2

>3.5

<-13.8

3CC-SFP28-29-LR

1291

3CC-SFP28-31-LR

1311

3CC-SFP28-33-LR

1331

3CC-SFP28-35-LR

1351

3CC-SFP28-37-LR

1371

 

25G SFP28 LR  CWDM Transceiver  10G SFP+ LR  CWDM Transceiver 

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。

 

Product model

Tx wavelength

(nm)

Distance

(km)

Tx optical power range

(dBm)

Overload Optical Power (dBm)

Ext (dB)

Receiver Sensitivity (dBm)

3CC-SFP+27-LR

1271

10km

0~+3

>+1

>4

<-14.4

3CC-SFP+29-LR

1291

3CC-SFP+31-LR

1311

3CC-SFP+33-LR

1331

3CC-SFP+35-LR

1351

3CC-SFP+37-LR

1371

3CC-SFP+47-LR

1471

3CC-SFP+49-LR

1491

3CC-SFP+51-LR

1511

3CC-SFP+53-LR

1531

3CC-SFP+55-LR

1551

3CC-SFP+57-LR

1571

 

 

Remote passive WDM

1U 3Slots CWDM Chassis  (3C-1U-LGX3) 3U 16Slots CWDM Chassis   (3C-3U-LGX16) Outdoor Remote side CWDM Terminal box(3C-FDB-0216D)


 

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.。

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.。

he 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。

5G Semi-Active WDM Fronthaul System

 

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