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With the development of CATV fiber optic networks, from pure uni-directional CATV signal transmission to bi-directional, it develops into triple-play step by step. This is realized by fiber access with EPON, GPON networks. In 1550nm system, it has been a huge topic for the network operators how to inter-cut local individualized program and VAD service without investing high expense.
OPT-1550I-W optical transmitter, build-in WDM, the inter-cut signal will be multiplexed with main optical signal. Low-input design ensures excellent system CNR when optical power of main line is within the range +10~0dBm. Meanwhile, it is equipped with wavelength adjustable function which can avoid interference between main line signal and inter-cut signal caused by same frequency.
Features
1) High quality: With APC and laser thermoelectricity cooling circuit design, ensures the optimum performance and long life of the lasers
2) Flexibility: Build-in wavelength adjustable function, AGC function for RF part, RF level can be calculated according to the channel numbers inter-cut. Build-in VOA (variable optical attenuator) that effectively solves the adaption problem between inter-cut signal and main line signal and makes the adjustment simple.
3) Reliability: The 19 "1U standard rack, built-in high-performance switching power supply, it can work at 85~265Vac City Network Voltage, As well as an optional DC48V power supply (reservations required); chassis cooling automatic temperature control.
4) Intuition: Laser is the most expensive machine components, machine equipped with microprocessor monitors the working state of the laser, the panel LCD window displays the operating parameters.
5) Network management (Optional): RS232 port for local management and monitoring, RJ45 port for remote control and management.
6) Pluggable power supply: Dual pluggable PSU, easy for exchange and work as redundancy.
Technical parameters
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|
unit |
Specification |
|
RF part |
|
Bandwidth |
Mhz |
45~750(862) |
|
CNR |
dB |
>51.0 |
|
Flatness |
dB |
≤±0.75 |
|
RF level |
dBuV |
Marked on bar Code |
|
Input resistance |
Ω |
75 |
|
RF working mode |
|
AGC |
|
Return loss |
dB |
＞16(47～550)MHz
＞14[550～750(862)MHz |
|
Channel number |
CH |
<10 (Analogue) |
|
Public feature |
|
Inter-cut input wavelength range |
nm |
1540~1560 |
|
W/L adjustable range |
GHz |
|
|
Main line optical power |
dBm |
3~10 |
|
Inter-cut optical power |
dBm |
Self-adaption |
|
Optical connector (IN/OUT) |
|
SC/APC or FC/APC or customer specify |
|
Network management interface (optional) |
|
RJ45 support browser and SNMP |
|
Power supply |
VAC |
115~265VAC or -48 VDC |
|
Power consumption |
W |
50 |
|
Working temperature |
℃ |
-5~65 |
|
Storage temperature |
℃ |
-40~80 |
|
Operating relative humidity |
% |
20~85 |
|
size |
‘’ |
19×14.5×1.75 (1U,19’’) |
Products series
|
Model |
1550nm internal modulation optical transmitter (VOD overlay) |
|
Output power in mW |
Output power in dBm |
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OPT-1550I-W-02 |
≥2 |
≥3 |
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OPT-1550I-W-04 |
≥4 |
≥6 |
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OPT-1550I-W-06 |
≥6 |
≥7.8 |
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OPT-1550I-W-08 |
≥8 |
≥9 |
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OPT-1550I-W-10 |
≥10 |
≥10 |
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