Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h

Guangtai HT8500H CATV External Modulation Optical Transmitter Optical Equipment. Factory direct for high-quality, reliable optical transmission solutions.
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PRODUCTS DETAILS

  • Overview
  • Product Description
  • Product Features
  • Main Application
  • Technical Index
  • Flow Chart
  • Shipping Mode
  • FAQ
Overview

Basic Info.

Model NO.
HT8500H ( Optical Equipment )
Work Bandwidth
47-862MHz
Sbs
13, 16, 18 Adjustable
Return Loss
18~28dbmv
Flatness
</=+/-0.75dB
RF Connector
F-Female
Communication Interface
RS232
Trademark
Guangtai

Product Description

HT8500HC (CATV wavelength)
HT8500HU (ITU wavelength adjustable)
CATV  External Modulation Optical Transmitter Optical Equipment

Product Description

GT is the well-known manufacture in analog externally modulated optical transmitter in the world. Huatai HT8500H that accords with current international industry technique standard is a 1550nm Externally Modulated Optical Transmitter. The whole unit light source adopts narrow bandwidth ( 0.65MHz ), low noise, continuous wave DFB laser, which is propitious to reduce the influence of dispersion. The whole unit signal modulation adopts CATV special LiNbO3 external modulator of American company and Huatai optimized control technology with independent intellectual property , so it can reach high index of back to back CNR ≥ 54dB, CTB ≤ -65dB, CSO ≤ -65dB, SBS: 13, 16, 18dBm adjustable . The whole unit is equipped with perfect RS232 communication interface, SNMP network management, 1+1 back-up power supply , hot-plug function available, chassis temperature auto-control.
HT8500H, standard type externally modulated optical transmitter with it's high index, high reliability and excellent cost performance, is applicable for main links and distribution network links in large and middle CATV station head-end.

Product Features

1. High performance: Externally modulated technology, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 47~862MHz.
2. 1+1 powers supply back , up hot-plug function available.
3. Narrow bandwidth (0.65MHz), lower noise, DFB continuous wave laser, is propitious to reduce the influence of the dispersion.
4. The operating bandwidth is up to 47~1000MHz .
5. CNR ≥ 53dB and excellent CTB, CSO index.
6. SBS: 13, 16, 18dBm adjustable.
7. ITU standard wavelength, ±200GHz (±1.6nm) adjustable.
8. AGC/MGC mode is optional at spot. OMI can be optimized at spot.
9. Perfect RS232 communication interface.
10. Advanced SNMP network management function.
11. Casing temperature auto-control.
12. Excellent P/P ratio.

Main Application

1. Used in main links and distribution network links in large and middle CATV station head-end.
     Analog digital hybrid transmission >200Km (with dispersion compensation).
     Pure digital transmission (without dispersion compensation) >400Km,
                                              (with dispersion compensation) >700Km.
2. HT8500HU ITU wavelength adjustable, applicable to the value-added service of DWDM fiber optic CATV system and CFG dispersion compensation system.
3. It can be used in branch FTTH that has high system index demand. Point to Point>65Km, CSO ≤ -65dB. It can provide high qualified and reliable value-added service such as RFTV, IPTV and VOD for the secondary users. It can also avoid the limitation of CSO deterioration and transmission distance caused by laser chirp for adopting 1550nm direct modulated optical transmitter.

Technical Index

 
Performance Index Supplement
Optical
feature
Operating wavelength (nm) 1548~1563 HT8500HC
ITU-TG.692 HT8500HU
Wavelength ADJ. range (nm) ±1.6 ( ±200GHz ) HT8500HU
Wavelength ADJ. mode   ±0.05nm stepping HT8500HU
Wavelength stability (Pm/ºC) -1~0 Tc=20~70ºC
Linewidth (MHz) Typ.=0.65 FWHM( △λ ) ( -3dB fullwidth )
Side mode suppression ratio (dB) ≥45 SMSR
Equivalent noise intensity (dB/Hz) ≤-160 RIN ( 20~1000MHz )
Number of output port   2  
Output power of each port (dBm) 13, 12, 11, 10, 8.5, 7.0, 4.5 2×5,2×7, 2×9, 2×10, 2×11 , 2×12 , 2×13
Return loss (dB) ≥50  
Optical fiber connector   SC / APC Optional LC / APC,FC / APC
RF feature Work bandwidth (MHz) 47-862 Optional 47~ 1000MHz
Input level (dBmV) 18~28 AGC
Flatness (dB) ≤±0.75 47~862MHz
≤±1.5 862~1000MHz ( Optional )
Return loss (dB) >16  
Input impedance (Ω) 75  
RF port   F-Female  
Link feature Transmit channel   PAL-D / 60CH PAL-D / 99CH  
CNR1 (dB) ≥53.0 ≥51.5 Back to back
CNR2 (dB) ≥51.5 ≥49.5 65Km optical fiber, 0dBm receive
CTB (dB) ≤-65 ≤-65  
CSO (dB) ≤-65 ≤-65  
SBS restrain (dBm) 13, 16, 18 Adjustable
General feature SNMP network management interface   RJ45  
Communication interface   RS232  
Power supply (VAC) 90~265 50 / 60 Hz
(VDC) -48 30~72
Power Consume (W) ≤50 Single power works
Work temp. (ºC) -5~65 Machine temp. control automatically
Storage temp. (ºC) -40~85  
Relative humidity (%) 5~95  
Size (W)x(D)x(H)   19×15.2×1.75 S-Type
19×17.9×1.75 L-Type

Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h

Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h

Flow Chart

Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h

Shipping Mode

 

Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h  
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h
 
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h
Guangtai CATV External Modulation Optical Transmitter Optical Equipment Ht8500h

 

FAQ

1. What are the payment terms of payment?
Usually, we accept T/T, PayPal, Western Union, and Alibaba Trade Assurance. You can select the terms of payment which is more convenient for you.

2. What about the lead time?
Usually, if there's stock, we ship the goods within 5-7 working days after the deposit is confirmed. If it is out of stock, the lead time depends.

3. How about the shipping?
When the package is small, we will deliver the goods via international Express like FedEx , DHL,TNT and UPS and so on. Door to door delivery service will be provided; while the goods have high weight and volume, we suggest using air or sea shipment.

4. Can you do OEM for us?
Yes. if there is a certain order quantity, we can do OEM including printing, logo, and customized model for you.

5. What are the advantages of your products?
A. Good quality and competitive prices
B. Strict quality control during production process.
C. Professional operations in processes of production, sales, assembling, packaging and shipping
D. Good after-sale service. Professional online technical support can be provided. Moreover, if there is any problem of the goods, we will help to solve the problem or provide replacement of the goods

6. How about the Warranty?
There are 12 months for the warranty. While the warranty is not responsible for those broken by violence or updated with other brands.

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