1310nm optical
transmitter is the important part of CATV HFC network. Its main function is
fiber remote transmitting of TV image signal, digital TV signal, telephone
audio signal and data or compressed data signal. This transmitter own excellent
capability, the Light source is imported high performance DFB laser, and radio
frequency driving part is adopted RF power numeral self-controlling technology
and inset excellent micro-computer self-monitoring system.
Features:
◆ High performance DFB laser with international famous
brand
◆ Adopting RF power numeral self-controlling technology on radio
frequency driving part to make CSO,CTB and C/N on high-top and keep output
level unchanged.
◆ Adopting advanced
◆ inset excellent micro-computer self-monitoring system
◆ VFD blue screen display in front board
showing precise information of all equipment
◆ 19〞1U standard rack,RS232 and RS485 interface
Specification:
|
Item |
Parameter |
|
Output optical
power |
4 6
8 10 12
14 16 18
20 22 |
|
Optical line
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 modulating
type |
Direct intensity
modulating |
|
Optical
connecting type |
FC/APC or SC/APC |
|
Frequency |
47-750/862MHz |
|
RF input level |
72-88dBuV |
|
Flatness in band
|
±0.75dB |
|
RF input
impedance |
75Ω |
|
Input return
loss |
≧16(47-550) MHz; ≧14(550-750/862) MHzdB |
|
|
≧60dB |
|
|
≧65dB |
|
Bearing noise
rate |
≧51dB |
|
AGC controlling
range |
±8dB |
|
MGC controlling
range |
0-16V |
|
Working voltage |
AC110V-250V(50Hz)V |
|
Total power loss |
|
|
Working
temperature |
0 |
|
Reserving
temperature |
-20 |
|
Opposite
humidity |
Maximum
95%,condensation 0% |
|
Size |
483(L)*380(W)*44(mm) |