1. Product Overview
WR-1201-JKC-TD FTTH Node is mainly used for RFOG network. Its upstream output optical wavelength can be adjusted on the spot to realize the OBI free effectively.
2. Performance Character
- Operating frequency: 5~85/110-1218MHz; support smoothly update on the spot (5~204/258-1218MHz).
- Support optical AGC downstream, whose control range is 0~-5/-6/-7/-8dBm adjustable.
- Adopt electric adjusting mode for both EQ and ATT circuit, using LED displaying screen to modify directly.
- Output optical wavelength is 1610nm upstream (or specified by the user) and can be adjusted by button in 0.25nm stepping; totally it can be set 16 wavelengths.
- RFoG can be set as burst mode or continuous mode.
- Support DOCSIS 3.0 system and OBI Free.
3. Block Diagram
4.Structure Description
5,Technical Parameter
5.1 Forward Path
| Item |
Unit |
Technical Parameter |
| Receiving Optical Power |
dBm |
-8 ~ 0 |
| Optical AGC Control Range |
dBm |
-5/-6/-7/-8 ~ 0 |
| Optical Return Loss |
dB |
>45 |
| Optical Receiving Wavelength |
nm |
1550±0.75 |
| Optical Connector |
|
SC/APC |
| Optical Fiber Type |
|
single mode |
| C/N |
dB |
≥ 52(0dBm optical power input) |
| C/CTB |
dB |
≥ 60 |
CENELEC 42 kanal, EQ=6dB, output level 96dBμV@1218MHz. |
| C/CSO |
dB |
≥ 60 |
| Frequency Range |
MHz |
110/258 ~1218 |
| Flatness in Band |
dB |
±0.75@Pin=0dBm |
| Rated Output Level |
dBμV |
≥ 96(-6~0dBm) |
| Maximum Output Level |
dBμV |
≥ 98@AGC= -5~0dBm |
| Output Return Loss |
dB |
>16dB, -1.5dB/oct. |
| Equivalent Noise Current |
|
<5,5pA/rt(Hz) |
| Output Impedance |
Ω |
75 |
5.2 Return Path
| Item |
Unit |
Technical Parameter |
Optical Transmitting Wavelength
|
nm |
1470 - 1620 nm
(can be adjusted in 0.25nm stepping; totally it can be set 16 wavelengths) |
| Output Optical Power |
mW |
2 |
| Optical Connector |
|
SC/APC |
| Maximum Time from Application of RF to 90% Optical Power (Ready to Late-side Mask) |
us |
1.3 |
| Maximum 10- 90% Optical Power Rise Time (Ready from Late-side Mask 10% to Early-side Mask 90%) |
us |
1.0 |
| Minimum 10- 90% Optical Power Rise Time (Ready from Late-side Mask 10% to Early-side Mask 90%) |
ns |
100 |
| Maximum Time from Removal of RF to the Time the Optical Carrier Falls to 10% of its Steady-state Amplitude (Ready to Late-side Mask) |
us |
1.6 |
| Maximum 90- 10% Optical Power Fall Time |
us |
1.0 |
| Minimum 90- 10% Optical Power Fall Time |
ns |
100 |
| Frequency Range |
MHz |
5 ~ 85/204 |
| Flatness in Band |
dB |
±0.75 |
| Output Impedance |
Ω |
75 |
| NPR Dynamic Range |
dB |
>15@NPR>30dB |
| Laser turn on Level |
dBμV |
67±1 |
| Laser turn off Level |
dBμV |
58±1 |
5.3 General Character
| Item |
Unit |
Technical Parameter |
| Power Voltage |
V |
12VDC/1.5A |
| Protection Class |
|
IP41 |
| Operating Temperature |
ºC |
-40~70 |
| Storage Temperature |
ºC |
-40~65 |
| Relative Humidity |
% |
Maximum 95% (no-condensing) |
| Overall Power Consumption |
VA |
≤ 15 (MAX) |
| ≤ 10 (@25ºC, stable operating at continuous mode) |
| Dimension |
mm |
180*135*40 |
6. Function Display and Operating Instruction
Open the optical receiver to set it. The following is the diagram of LED digital display tube and control button.
Enter Key: cyclical page turning and input validation.
Up key: press this button for 3s to enter into the adjust mode.
Down key: press this button for 3s to enter into the adjust mode.
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