The WT-1310 downstream optical transmitter supports 1.2 GHz band and the DOCSIS 3.1 standard. The output optical power is from +6 dBm to +15 dBm available. It can be used for optical fiber transmission of downstream analog TV signals, digital television signals and CMTS data signals in HFC network. Two-way input signals with high-isolation for a variety of broadcast and insertion applications. It has high CNR and low distortion.
* High-performance DFB laser with good linearity and high output power.
* Support 1.2 GHz band and the DOCSIS 3.1 standard.
* Two RF inputs with high isolation to achieve high-quality RF insertion.
* Output optical wavelength：1310 ±20nm。
* Output optical power：4～30mW。
* Rated input level：72～88dBμV。
* OMI Control Range：+/- 5dB。
* CNR≥ 52dB，CSO≥ 62dB，CTB≥ 65dB
* Voltage：AC 150V～265V or DC - 48V
* 19″1U：483mm(L)X 395mm(W)X 44mm(H)|
Item |
Unit |
Parameter |
|
|
Optical Part |
|||
|
Output optical wavelength |
nm |
1310 ± 20 |
|
|
Output optical power |
mW |
4 ～ 31（+6dBm ～ +15dBm） |
|
|
Laser type |
— |
DFB laser |
|
|
Optical modulation mode |
— |
Direct optical intensity modulation |
|
|
Optical connector type |
— |
SC/APC or FC/APC |
|
|
Optical return loss |
dB |
> 45 |
|
|
RF Part |
|||
|
Frequency range |
MHz |
47 ～ 870/1003/1218 |
|
|
Flatness in band |
dB |
± 0.75 |
|
|
RF input impedance |
Ω |
75 |
|
|
Input test port
|
dB |
-20±1 |
|
|
Laser drive level test port
|
dB |
-20±1 |
|
|
Input return loss |
dB |
≥ 16 |
|
|
C/N |
dB |
≥ 52 |
550MHZ 59CH analog signal 77dBuV/CH 550-870MHZ 40CH digital signal 67dBuV/CH -1dBm optical receiving power, 0KM fiber |
|
C/CTB |
dB |
≥ 67 |
|
|
C/CSO |
dB |
≥ 62 |
|
|
RF input level |
dBuV |
80±5 |
|
|
Adjusting range under AGC mode |
dB |
± 5 |
|
|
MGC attenuation range |
dB |
0 ～ 15 |
|
|
Others |
|||
|
Operating temperature |
℃ |
-5 ～ + 45 |
|
|
Storage temperature |
℃ |
-20 ～ + 65 |
|
|
Maximum power consumption |
W |
≤15 |
|
|
Weight |
Kg |
5.5 |
|