The upstream optical transmitter module is mainly applied to the relay transmission of the upstream optical link in the HFC network. The main features are as following: frequency range is 5 ~ 300MHZ; meet DOCSIS 3.1 standards; high performance DFB laser; ITU wavelength is optional; WDM application is available.
● Support hot swap.
● Adopt high performance DFB laser.
● CWDM standard wavelength is optional.
● Frequency range: 5~300MHZ; meet DOCSIS 3.1 specification.
● Internal temperature detection and monitoring.
|
Item |
Unit |
Parameter |
|
Optical Performance |
||
|
Output optical power |
dBm |
1～4 |
|
Output optical wavelength |
nm |
CWDM standard wavelength is optional. |
|
Laser type |
|
DFB laser |
|
Optical modulation mode |
|
Direct optical intensity modulation |
|
Fiber connector type |
|
SC/APC or FC/APC |
|
Optical return loss |
dB |
> 45 |
|
Laser working mode |
|
continual mode |
|
RF Performance |
||
|
Operating frequency range |
MHz |
5～300 |
|
Suggested input level |
dBμV |
80 |
|
Input level range |
dBμV |
75～ 85 |
|
Flatness in band |
dB |
± 0.75 |
|
Return loss |
dB |
≥ 16 |
|
Input level adjusting range |
dB |
0～30 |
|
NPR dynamic range |
dB |
≥10 (NPR≥30 dB) (Note 1) |
|
Input level test port |
dB |
-20 ± 1 |
|
Laser drive level test port |
dB |
-20 ± 1 |
|
General Characteristics |
||
|
Maximum power consumption |
W |
≤3 |
|
Operating temperature |
℃ |
-5～+55 |
|
Storage temperature |
℃ |
-30～+70 |
|
Weight |
Kg |
1 |