Be important equipment to set
up CATV HFC networks, and primarily used for TV video signal, digital TV
signal, telephone voice signal and data(or compressed data) signal
long-distance fiber transmission. It use import high performance DFB
laser transmitter as light source, RF drive adopts RF power digital automatic
process technique and advanced RF pre-distortion circuit developed by our company
and built-in perfect microprocessor automatic monitor system insure the
excellent function of the product.
● Adopt high performance DFB laser with international
famous band, narrow Spectrum, good linear and high output
power.
● Adopts RF power digital automatic process technology designed by ourselves at RF driving part. It can auto-adjust RF driving power according to the input RF signal level and channel number(15~84) to make the C/CSO,C/CTB and C/N in the best condition, which ensure performance of the whole equipment and make the output level of optical receiver keep the same.
● Advanced multi-frequency point pre-distortion technology with GaAs devices optimize C/CTB and C/CSO value, which are the most important index in CATV system, meanwhile maximize the C/N.
● The built-in micro-computer automatic monitor circuit can real-timely and precisely monitor various working condition of optical output power and laser to ensure the stable optical output power and prolong the working life of laser effectively.
● 19″1U standard rack, the front panel embed blue VFD monitor, which can display accurately all working parameters and fault information of the equipment.
● There is Ethernet interface and RS-322 network management interface which match to IEEE802.3 10Base-T Standard, fully supporting << GB/T 20030－2005 HFC Network Equipment Management System Rule>>
Technical Parameters
|
Item |
Unit |
Technical Parameters |
|||||||||
|
Output power |
mw |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
|
Optical Circuit loss |
dB |
7 |
9 |
10 |
11 |
11.8 |
12.5 |
13 |
13.6 |
14 |
14.4 |
|
Optical wavelength |
nm |
1310±20 |
|||||||||
|
Laser type |
|
DFB laser |
|||||||||
|
Optical modulation mode |
|
Direct optical strength modulation |
|||||||||
|
Connector type |
|
FC/APC OR SC/APC |
|||||||||
|
Optical reflecting loss |
dB |
> 45 |
|||||||||
|
Frequency range |
MHz |
47 ~ 862/1003 |
|||||||||
|
RF input level |
dBμV |
72 ~ 88 |
|||||||||
|
Flatness in band |
dB |
±0.75 |
|||||||||
|
RF input impedance |
Ω |
75 |
|||||||||
|
Input reflecting loss |
dB |
≥16 |
|||||||||
|
C/N |
dB |
≥51 |
|||||||||
|
C/CTB |
dB |
≥65 |
|||||||||
|
C/CSO |
dB |
≥60 |
|||||||||
|
AGC control range |
dB |
± 8 |
|||||||||
|
MGC control range |
dB |
± 8 |
|||||||||
|
Supply voltage |
V |
AC 150V ~ 265V / DC~48V |
|||||||||
|
Consumption |
W |
30 |
|||||||||
|
Working Temperature |
℃ |
-10 ~ +45 |
|||||||||
|
Storage Temperature |
℃ |
-30 ~ +70 |
|||||||||
|
Relative Humidity |
% |
Max 95% no condensation |
|||||||||
|
Dimension |
mm |
483（W）× 395（L）× 44（H） |
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