| 产品简介：Double Module RF-driven, high-performance laser pre-distortion correction ▲ KDXGFF-8300 (1310nm direct modulation, A type of laser) CNR ≥ 52dB, CTB ≤-67dB, CSO ≤-62dB
▲ KDXGFF-8600 (1550nm direct modulation, A category Laser) CNR ≥ 52dB, CTB ≤-67dB, CSO ≤-62dB (15Km fiber)
● automatic laser modulation (OMI) control, AGC & MGC
▲ work in AGC, and input level in 78dBμV ~ 88dBμV scope, can achieve the best
▲ good indicator of the work system in the MGC state, through the front panel ATT, can 75dBμV ~ 90dBμV adjusted.
● front panel 20 OMI dedicated status display (Modulation Depth), can be directly regulated and prompted laser system to normal or too low, too high.
▲ work in the AGC status, RF at rated input range, OMI would have been in a state of NOM.
▲ work on MGC state regulation of ATT, can easily OMI in NOM state.
● built-in dual-power backup, automatic switch.
▲ single power can work for another cold backup (recommended conventional should be shipped).
▲ can double the power of work at the same time, the other only for backup, such as the one in which the damage, then automatically switch to another. Switching time ≤ 10μS.
● Automatic temperature control chassis to ensure long-life laser work.
▲ chassis temperature monitoring by the microprocessor, the display case was a timely display of the actual operating temperature.
▲ When the temperature is higher than in the chassis settings (45 ℃), the latter two panels efficient axial flow fan will automatically open, forced cooling.
▲ When the temperature dropped to set the value (35 ℃), it will automatically shut down, extended fan life.
● dual RF inputs.
▲ AM interface input 59 Road, PAL-D (47-550MHz)
▲ Digital Interface (-10dB) digital video input (550-750MHz |
Beijing Kai Dexing GFF8600 Series 1550 nm externally modulated optical transmitter, mainly used in ultra-Link Link Cable (≤ 120Km) and urban large-area multi-point distribution network, you can send high-quality low-cost analog CATV signals and images digital data signal. GFF8600 series of externally modulated optical transmitter using the world-famous brands of low-noise, narrow linewidth, continuous-wave laser light source, using high linear LiNbO3 external modulator for signal modulation, eliminating the direct modulation 1550nm Optical Transmitter chirp effect. As a result of the distortion with independent intellectual property rights compensate for technology, control technology bias, SBS suppression system optimization technology and control technology, so that whole technical performance indicators fully meet the import of similar equipment standards, can replace imported equipment.
Features
·System optimization technology, can also provide a good CSR, CTB, CSO and SBS indicators.
·13,16,18 field adjustable SBS suppression, applicable in different applications.
·Laser system (OMI) mode AGC / MGC optional.
·7dB front panel to adjust the scope of the transfer system, the user can set the best indicators link.
·20 unique LCD OMI modulation index.
·Laser output at dual port / single port optional.
·Chassis automatic temperature control, to extend the working life lasers.
Main technical indicators
1X5 Laser wavelength (nm) 1550 ± 10 to comply with the ITU-TG.692 standard wavelength election set output power (dBm) 2x7 optional 2×5,2×9 or 1×7,1×5
Optical Return Loss (dB) ≥ 60
Fiber Connector FC / APC optional SC / APC, E-2000
45-862 Bandwidth (MHz) 45-862
AGC Input level (dBmV) 23 ± 5 AGC
Flatness (dB) ≤ ± 0.75 45 ~ 862MHz
Return Loss (dB)> 16 45 ~ 750MHz
Input Impedance (Ω) 75
Transmission Channel PAL-60/ch PAL-D/60CH
CNR (dB) ≥ 52 65Km fiber, 0dBm receive
CTB (dB) ≤-65 CTB (dB) ≤ -65
CSO (dB) ≤-65 CSO (dB) ≤ -65
SBS suppression (dBm) ≥ 16.0 13,16,18 optional network management interface RJ45, R232 browser and SNMP support
Power Supply (V) 90 ~ 265 City optional-48VDC
single-supply work temperature (℃) 0 ~ 50 automatic temperature control chassis storage temperature (℃) -20 ~ 85
Working relative humidity 20% ~ 85%
Size "19" × 15 "× 1.7" (W) x (D) x (H)
Apply
City, county-level front-end cable television host 1550nm, 1550nm township cable television station
The main product line
A conventional type (which can substitute for all kinds of imported equipment)
| 1, top-level type: |
GF8529C |
(Dual fiber output ≥ 9dBm) |
| 2, the standard model: |
GF8527A、B、C GF8527A, B, C |
(Dual fiber output ≥ 7dBm) |
|
GF8525A、B、C GF8525A, B, C |
(Dual fiber output ≥ 5dBm) |
|
GF8517A、B、C GF8517A, B, C |
(Single fiber output ≥ 7dBm) |
| 3, economy: |
GF8515A、B、C GF8515A, B, C |
(Single fiber output ≥ 5dBm) |
二、Second, high-power type
| 1, GF8586C: |
City, county-level front-end cable television host 1550nm |
| 2, GF8588A: |
1550nm cable television network township station |
Transmission distance
Point-to-point: 1310nm wavelength 50Km, 80Km
wavelength> 100Km (G.652 ordinary optical fiber)
Renewable paragraph: 1310nm wavelength 50Km, 80Km
1550nm wavelength> 100Km (G.652 ordinary optical fiber)
Technical performance of RF amplifiers
Input level: AGC state 75dBμV ~ 85dBμV
MGC state 75dBμV ~ 85dBμV
Bandwidth: 45 ~ 862MHz
Flatness: ± 0.5dB (45 ~ 862MHz)
Impedance: 75Ω
Structure / common indicators
Power supply: 22 220VAC ± 10%
48-48VDC
Operating temperature: 0 ~ 65 ℃
Storage temperature: -40 ℃ ~ 85 ℃
Operating Humidity: 30% ~ 80% (no condensation)
Fiber Connector: FC / APC
RF connections: FL10
RF Return Loss: ≥ 14dB
Optical Return Loss: ≥ 60dB
Overall dimensions: transmitter, repeaters 19 "(W) × 1.75" (H) × 15 "(D)
Receivers, amplifiers 19 "(W) × 1.75" (H) × 9 "(D)
System Application
Point-to-point - the star point-to-point network to extend the distance to improve the signal quality studio to satellite launches satellite antenna receiving antenna to cable TV front-end (optical transmitter interface with +15 VDC-fed for the first high-frequency).Point-to-multipoint - star-shaped, tree-air satellite network to exclude interference, from a central Taiwan timely monitoring, broadcast.Satellite earth station → provincial cities, places, and at the county level and county-level city cable front-end (the province's cable television network is only a satellite earth station) to level cities → satellite ground receiving station at the county level and county-level cities of the cable front-end (prefecture-level cities area only a satellite ground receiving station) Self-healing ring network ring provincial satellite television network, timely monitoring, switch-level ring satellite TV network, timely monitoring, switch Wavelength Division Multiplexing DWDM aircraft do not need another optical-fiber telecommunications line, through the 1310/1550 WDM and insert 1550 CWDM or DWDM |
