Taiwan Quality Remote Support

1550 nm CATV external modulation optical transmitter

Features


  •  NGB (Next Generation Broadcasting)

  •  Full C-band tunable (tuning range>35nm)

  •  1550nm Externally Modulated Optical Transmitter

  •  RoHS Compliant and Lead-Free

  •  Excellent cost performance

  •  1+1 power backup, support hot plug-ing


 

SPOTLIGHT

1550 nm C band tunable CATV external modulation optical transmitter, tunable range of wavelength: 1528.77~1563.86nm, the adjustable wavelength: >35nm.

Applications



  • Next Generation Broadcasting ( NGB )

  • FTTH, FTTx PON, RFoG, Triple-play

  • Narrow plug data service as VOD, IP/QAM, etc

  • Replacing traditional fixed wavelength 1550 nm external modulation optical transmitter

  • Providing highly wavelength flexible and replace ability

  • As an alternate machine of ITU fixed-wavelength optical transmitter, to reduce the amount of inventory reserves

  • Fully use of existing fiber resources, achieving network upgrades and expansion

  • The CATV network with super capacity backbone and metropolitan area networks

  • Dynamic wavelength configuration, wavelength conversion, wavelength routing

  • Optical path protection, DWDM line back up

  • Dynamic optical add-drop multiplexing (OAOM)

  • DWDM system test


CATV fiber transmitter

Quick Specs




















































Model



Output power of each port



Work wavelength



SBS restrain



System index ( 59 PAL-D )



CNR1



CNR2



CTB



CSO



FB-CT-NBS1550-5.5



≥5.5dBm



1528.77~1563.86
Full C-Band Tunable



13~19 dBm Adjustable



≥ 54



≥ 52.5



≤ -65



≤ -65



FB-CT-NBS1550-6.5



≥6.5dBm



≥ 54



≥ 52.5



≤ -65



≤ -65



FB-CT-NBS1550-7.5



≥7.5dBm



≥ 54



≥ 52.5



≤ -65



≤ -65



FB-CT-NBS1550-8.5



≥8.5dBm



≥ 54



≥ 52.5



≤ -65



≤ -65



Description


  • Fiberbit's all C band tunable CATV external modulation optical transmitter, is an industry-leading and pioneer product. The tunable range of wavelength: 1528.77~1563.86nm, the adjustable wavelength: >35nm. With the traditional ITU standard wavelength ±0.8nm( ±100GHz ) can tunable, is a completely new concept and application ranges.

  • Unit including all C band’s useable wavelength, Its database stores 89 ITU standard wavelength channels ( C band 0.4nm gallery interval ). Users can achieve the selection, switch and route etc wavelength management function quickly, accurately. High wavelength accuracy, high wavelength stability, fast tuning rate, perfectly adapt the NGB DWDM system. It’s high wavelength flexibility and replaceability will become the development direction of next generation broadcast television network ( NGB ) external modulation optical transmitter.

  • The new generation fiber optical communication technology with DWDM nuclear technology should be the NGB’s development direction. The DWDM technology can provide large-capacity backbone network and metropolitan area networks for NGB, while PON ( passive optical network ) should be the mainstream technology of NGB subscriber access network.

  • The DWDM technology can take full advantage of existing fiber optical resource, large-capacity, the network with high flexibility, economic and high reliability. The wavelength can be convertible and management is the DWDM system’s core equipment of external modulation optical transmitter.

  • With the commercial transition of the cable television network, this industry is  positively changing from previous’ single basic service situation (only rely on radio and television) to the development of the integrated service provider.

  • Actively promoted the DTV, FTTx (FTTB, FTTP, FTTH), Triple-play and two-way network transformation. Carrying out all kind business, such as IPTV (IP / QAM), NVOD, VOD and time-shifted TV interactive etc. All these are shows that, this industry are being effort to actively develop a variety of value-added services.

  • As the amount of cable TV transmission network information suddenly increases. And in order to provide more Interactive services capacity, the next generation of radio and television network (NGB) appeared. The new generation of optical communications technology whose core is DWDM technology, should be the direction of NGB. DWDM technology can provide large-capacity of backbone network and metropolitan area networks to NGB.

  • The PON (Passive Optical Network) should be the mainstream technology of NGB user access network.

  • DWDM technology can take full advantage of existing fiber resources, huge capacity, transparent transmission and all-optical switching; make the whole network with a high standard of flexibility, economy and reliability. DWDM technology is mainly composed of narrow-band light source (optical transmitter), DWDM, EDFA, OADM, OXC, Receiver and other components that all met the ITU standard wavelength. The optical transmitter 1550nm with high-performance of tunable andmanageable wavelength is required in DWDM system; in order to running all kinds function such as wavelength conversion, wavelength management, wavelength routing, optical add-drop multiplexing etc. This optical transmitter with the full C-Band tunable, and covering all available wavelengths of the C-Band. It can fast and accurate tuning to thedesired wavelength according to the needs of the network at any time. The High wavelength accuracy, high wavelength stability, and fast tuning speed are entirely appropriate NGB DWDM system.

  • With its high wavelength flexibility, replaceability and excellent cost performance, this device will be the direction of development of CATV 1550nm externally modulated optical transmitter. It will gradually replace the traditional fixed wavelength of 1550nm external modulation optical transmitter, become a mainstream product. No doubt this device will be the best choice for CATV system integrators and operators.


Detailed Features


  • Full C-Band tunable, tunable range >35nm

  • 0.4nm interval, 89 ITU channels, database storage

  • ITU cord, Frequency, Wavelength three tunable ways, flexible and convenient

  • Flexible tunable speed (<20mS)

  • High wavelength(frequency) lock precision(±0.02nm)

  • High wavelength(frequency) stability (±0.012nm)

  • Excellent side mode suppression, high extinction ratio

  • Low noise, narrow linewidth ( Typ.=0.3MHz )

  • Working frequency bandwidth up to 1050MHz

  • Excellent system CNR,CTB,CSO index

  • SBS threshold 13 ~ 19dBm continuously adjustable

  • The safety and reliability of the telecommunication level , network management

  • 10/100M Ethernet interface, support SNMP, and WEB remote control and management

  • 1+1 power backup, support hot plug-ing

  • Excellent cost performance


Specifications

CATV optical transmitter general specifications




































































































































































































































































































































Performance

Index

Supplement

Min.

Typ.

Max.

Optic feature
Tuning Range
(nm)
35 C-Band
Frequency tuning Range
(nm)
1528.77 1563.86
Wavelength tuning Range
(THz)
191.7 196.1
Number of ITU grid locking 89 50GHz spacing
Channels Spacing
(nm)
0.4 50GHz spacing
Locked wavelength Accuracy
(nm)
-0.02 +0.02 ± 2.5 GHz
Wavelength stability
(nm)
-0.012 +0.012 ± 1.5 GHz
Tuning Speed
(mS)
20
Number of Output port 2
Output power of each port
(dBm)
5.5 FB-CT-NBS1550-5.5
6.5 FB-CT-NBS1550-6.5
7.5 FB-CT-NBS1550-7.5
8.5 FB-CT-NBS1550-8.5
Power ripple
(dB)
-0.25 ±0.15 +0.25 Over tuning range
Line width
(MHz)
0.35 1 FWHM ( △λ ) , ( -3dB full width )
Side Mode Suppression ratio
(dB)
45 50 SMSR
Relative Intensity Noise (RIN)
(dB)
-160
RIN ( 20~1000MHz )
Return loss
(dB)
50
Optical connector SC/APC Optional FC/APC, LC/APC


RF


Feature

Work bandwidth
(MHz)

47
862
Input level
(dBmV)
18 28
AGC
Flatness
(dB)
-0.75 +0.75
Return loss
(dB)
16
Input impedance
(Ω)
75
RF connector
F-Female


Link


Feature

SBS restrain
(dBm)

13

19
Adjustable
Transmit channel PAL-D / 60CH PAL-D / 99CH
CNR1
(dB)
≥54.0 ≥52.5 Back to back
CNR2
(dB)

≥52.5

≥50.5

65Km optical fiber, 0dBm receive
CTB
(dB)

≤-65

≤-65
CSO
(dB)

≤-65


≤-65


General


Information

10 / 100M Ethernet interface
RJ45
Net working protocol
SNMP
Communication interface
RS232
Power supply
(VAC)

90
265
50 / 60Hz

(VDC)

-72
-48 -36
Power Consume
(W)
50
Single power works
Operating temp.
(℃)

-5
65
Machine temp. control automatically
Storage temp.
(℃)

-40
85
Operating relative humidity
(%)

5
95
Size (W)x(D)x(H)
(")

19×15.2×1.75



Test condition:

CNR1: Tx to Rx, 0dBmReceiving.

CNR2: 16dBm EDFA (NF4.5~5.5dB), 65kmfiber, 0dBm receiving.

 

Ordering Information
FB-CT-NBS1550-5.5 Full C-band tunable Externally Modulated Optical Transmitter, 2 Fiber Output, Output power ≥5.5dBm, 1528.77~1563.86
FB-CT-NBS1550-6.5 Full C-band tunable Externally Modulated Optical Transmitter, 2 Fiber Output, Output power ≥6.5dBm, 1528.77~1563.86
FB-CT-NBS1550-7.5 Full C-band tunable Externally Modulated Optical Transmitter, 2 Fiber Output, Output power ≥7.5dBm, 1528.77~1563.86
FB-CT-NBS1550-8.5 Full C-band tunable Externally Modulated Optical Transmitter, 2 Fiber Output, Output power ≥8.5dBm, 1528.77~1563.86
Accessories
Share

SELF STUDY BLOG

Modern networks rarely rely on pure topologies like bus, ring, or star. Most common solutions use hybrid topologies, which are combinations of features from those three.   Star-Wired Ring As it is clear from the name, star-wired ring topology has features of star and ring topologies. You can see example of this topology ...