Basic Info.
Certification
CE, ISO, RoHS, GS, SGS, FCC
Work Bandwidth
47~862MHz, Optional 47~1000MHz
Input Level
18~28dbmv, AGC
Snmp Network Management Interface
RJ45
Transport Package
in Carton
Product Description
RFTV Network System FTTH GPON Solution CATV 1550nm External Modulation Fiber Optical Transmitter Product description
HPT8500H Series 1550nm externally modulated optical transmitter is the core equipment in the RFTV network system. RFTV is a unidirectional analogue and digital video broadcast. It adopts high efficiency modulation mode for RF carrier wave and its economy, flexibility and bandwidth validity is beyond comparison of IPTV. By adopting EPON, GEPON or P2P access mode to realize triple-play and FTTx, RFTV broadcasting network in 1550nm optical wavelength still plays an important role.
1550nm externally modulated technology for optical transmitter has no laser chirp, low dispersion distortion, and large extinction ratio, with excellent characteristic within 47~862MHz. External Modulator doesn't generate CSO distortion after reasonable bias. It can be followed by amplifier when used in large area coverage of over-long trunk and local networks. Adopting WDM, multi-wavelength optical channels can be transmitted through one fiber. 1550nm optical fiber CATV follows the current development trend of triple-play and fiber to home.
HPT8500H 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 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.
HPT8500H, 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. - HPT8525HC: 2 fiber output, each port ≥4.5dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT8527HC: 2 fiber output, each port ≥7.0dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT8529HC: 2 fiber output, each port ≥8.5dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT852AHC: 2 fiber output, each port ≥10dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT852BHC: 2 fiber output, each port ≥11dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT852CHC: 2 fiber output, each port ≥12dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT852DHC: 2 fiber output, each port ≥13dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.
- HPT8500HU: ITU standard wavelength adjustable. User can adjust and set the laser wavelength within ±200GHz (±1.6nm) at ±0.05nm space by LCD menu or buttons on the front panel. Apply to WDM network upgrade and expansion.
Product feature
- High performance: Externally modulated technology, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 47~862MHz.
- Narrow bandwidth (0.65MHz), lower noise, DFB continuous wave laser, is propitious to reduce the influence of the dispersion.
- The operating bandwidth is up to 47~1000MHz.
- CNR ≥ 53dB and excellent CTB, CSO index.
- SBS: 13, 16, 18dBm adjustable.
- ITU standard wavelength, ±200GHz (±1.6nm) adjustable.
- AGC/MGC mode is optional at spot. OMI can be optimized at spot.
- Perfect RS232 communication interface.
- Advanced SNMP network management function.
- 1+1 power supply backup, switch automatically.
- Casing temperature auto-control.
- Excellent P/P ratio.
Main application
- 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. - HPT8500HU ITU wavelength adjustable, applicable to the value-added service of DWDM fiber optic CATV system and CFG dispersion compensation system.
- 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.
TECHNIQUE INDEX | Performance | Index | Supplement |
| Optic feature | Operating wavelength | (nm) | 1548~1563 | HPT8500HC |
| ITU-TG.692 | HPT8500HU |
| Wavelength ADJ. range | (nm) | ±1.6(±200GHz) | HPT8500HC |
| Wavelength ADJ. mode | | ±0.05nm stepping | HPT8500HU |
| 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 | | ≤-160 | RIN(20~1000MHz) |
| Number of output port | | 2 | |
| Output power | (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 connector | | SC/APC | Optional FC/APC, LC/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 | 50/60Hz |
| (VDC) | -48 | 30~72VDC |
| 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 | (") | 19×14.5×1.75 | S-Type |
| 19×17.9×1.75 | L-Type |
Product series| Model | Number of output pore | Output power of each port (dBm) | Work wavelength
(nm) | SBS Restrain (dBm) | System index(59 routes PAL-D) |
| CNR1 | CNR2 | CTB | CSO |
| HPT8525HC | 2 | ≥4.5 | 1548~1563 | 13, 16, 18dBm Adjustable | ≥53 | ≥51.0 | ≥-65 | ≥-65 |
| HPT8527HC | 2 | ≥7.0 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT 8529HC | 2 | ≥8.5 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT 852AHC | 2 | ≥10 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT 852BHC | 2 | ≥11 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT 852CHC | 2 | ≥12 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT852DHC | 2 | ≥13 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT8525HU | 2 | ≥4.5 | 1528~1563nm
ITU wavelength adjustable | ≥53 | ≥51.0 | ≥-65 | ≥-65 |
| HPT 8527HU | 2 | ≥7.0 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT 8529HU | 2 | ≥8.5 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT852AHU | 2 | ≥10 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT852BHU | 2 | ≥11 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT852CHU | 2 | ≥12 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
| HPT852DHU | 2 | ≥13 | ≥53 | ≥51.5 | ≥-65 | ≥-65 |
Test condition:
CNR1: Tx to Rx, 0dBm receiving.
CNR2: 16dBm EDFA (NF4.5~5.5dB), 65km fiber, 0dBm receiving.
Address:
NO.333, JIANCAO MIDDLE ROAD, DONGSHENG, SHUANGLIU DISTRICT, CHENGDU
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Computer Products, Consumer Electronics, Electrical & Electronics
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
Catcast Technology Co., Ltd is a high-tech enterprise which concentrates on the research, manufacture, sale and engineer service of digital TV headend & broadcasting equipments with 16 years history in Chengdu, China. Catcast is building up both domestic and overseas markets while making a good contribution to the TV broadcasting industry. As a TV network investor, we have accumulated a great deal of experience in network operation of cable or wireless digital TV, IPTV, DSNG system as well as transfer analog TV system to digital TV system. Upgrade CATV/MATV to IPTV system.
Catcast′s products are CE, FCC certificated, shared in global markets and exported to more than 80 countries. Including: IRD, decoder, encoder, multiplexer, scrambler, modulator, all in one device, transmitter, STB, and CAS/SMS/EPG to help network operator to build digital TV system to apply to DVB-C, DVB-(T), DVB-S/S2/S2X, ISDB-T, ATSC solutions. We also provide IPTV live streaming server, VOD server, billing management system, and cross-border point to to point transmission by internet solution.
We are always striving for innovation, and keep the principle to do business: The same product, we win the quality. The same quality, we win the price.
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