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Help CenterTFR7800J Indoor 2 Outputs Optical Receiver
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Specifications
high realiabilityLCD status detector
1U 19" standard structure
2 outlets
excellent switching power
Summarize
TFR7800J indoor optical receiver can be used in HFC network, digital network and telecommunication network for television images, digital TV signal, telephone voice signal and data or (compressed data) signal long-distance optical fiber transmission.
This product is 19” 1U standard rack mount(optional). It has two-receiver backup function, remote network management interface.
AC power supply input from the high-performance, high reliable switching power supply components turns into +24V DC power supply device to the machine.
Features
- Adopt high-performance imported photoelectricity converter and power multiplier output module,excellent features
- RF level continuously adjustable; the balanced flatness range of the fixed equalization plug-in is 0~21dB.(3dB/stall optional)
- Output circuit is designed as plug-in form, one branch, two distribution plug-in optional, which provides two-way RF signal output
- Input optical power can be monitored on the panel, LCD indicator indication, easy to maintain
- Redundant receive to ensure atable output signal
- Optical AGC function optional,receive at +1~-6dBm,RF output level changes no more than ±0.5dB
- Open network management to meet the national standard, comply with SCTE HMS and IEC network management standard
Diagram
Specifications
NO. |
Item |
Unit |
Description |
Remark |
Optical Input | ||||
1 |
Optical Input Wavelength |
nm |
1200~1600 |
|
2 |
Optical Input Power |
dBm |
-8~+2 |
|
3 |
Optical Connector Type |
|
FC/APC or SC/APC |
|
4 |
Optical Output Loss |
dB |
≥45 |
|
5 |
Backup Receiver Switching Operating Point |
dBm |
-7 |
Optional |
RF Output | ||||
6 |
Frequency Range |
MHz |
47~860/1000 |
|
7 |
Flatness |
dB |
±0.75 (output 1,2) |
|
8 |
RF Output Test |
dB |
-20±1 |
|
9 |
Output Level |
dBuV |
≥96 |
|
10 |
RF Output Slope Adjustment |
dB |
0~18dB (factory preset to 0dB) |
|
11 |
RF Impedance |
Ω |
75 |
|
12 |
Return Loss |
dB |
≥16(47~860MHz) |
|
13 |
Optical Power Monitoring Point |
V/mw |
|
(1) |
14 |
CNR |
dB |
51(system indicators) |
(2) |
15 |
CSO |
dB |
-61(system indicators) |
|
16 |
CTB |
dB |
-65(system indicators) |
|
17 |
Power |
V |
~220,+10%/-20% |
|
18 |
Operating Temperature |
|
-10~+50 |
|
|
Remark : 1.Optical transmitter modulation is 3.6%,59 PAL-D analogue channels are loaded at 550MHz bandwidth, 33 QAM64 digital channels are loaded at 550-750MHz bandwidth, and the level is lower 6dB than analogue carrier. 2.Test method in accordance with “GY/143-2000” Standard | ||||
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