The Forward RF 45-1000Mhz containing CATV Channels 2-135 is being sent from the Headend to the endpoints.
The second component is a Return Path 5-42Mhz containing Data, being sent from endpoints to the headend.
Since Cable TV over coax cable service is actually Bi directional communication on different frequencies, forward path and return path.
Copper Coax is a great transmission medium, but it is losing a lot of transmission power over long-distance runs, single mode fiber solves that problem.
Thor has a solution for it and provides TX and RX devices, to replicate and simulate the bi-directional RF Point to Point over 2 Fibers.
Very useful for extendeding point to point , any CATV interactive service and Fast Cable Internet Service where bi-directional signals are being sent back and forth.
These devices convert electrical RF to optical in both directions simultaneously, it supports encrypted CATV, Clear QAM, and ATSC modulated RF.
It also supports Analog modulated RF PAL and NTSC.
Compatible with Cable TV and Internet Coax services like Comcast, Spectrum, Charter, Xfinity, Cox Communications and more.
Unit requires 2 single-mode fibers, and need to be interfaced with SC/APC fiber connectors to eliminate any reflections.
Features F-RFoF-TX:
1 Adjustable AGC range +2 to -7dBm
2 Working range: 5-42MHz & 54-1000MHz
3 Convenient for quick installation, the best choice for CATV network equipment
4 Using GaAs amplifier active devices
5 Ultra low noise technology.
6 Smaller size, compact, hardshell, and easier install
7 Red-LED for power supply indication.
8 Return Path Optical LED
Non-lit: optical power<-15dBm
Green: -12dBm<optical power<+3dBm
Red:optical power>+3dBm)
9 Forward RF-LED --Input RF signal indication:
RED: RF IN>85dBμV
GREEN: RF IN 75~85dBμV
LED OFF: RF IN<75dBμV)
Features F-RFoF-RX:
1 Adjustable AGC range +2 -7dBm
2 Working range: 5-42MHz & 54-1000MHz
3 Convenient for installation, the best choice for CATV network equipment
4 Using GaAs amplifier active devices.
5 Ultra low noise technology.
6 Smaller size, compact, hardshell, and easier install
7 Red-LED for power supply indication.
8 Return RF-LED
RED: RF IN>85dBμV
GREEN: RF IN 75~85dBμV
LED OFF: RF IN<75dBμV
10 Forward RF-LED --Input RF signal indication:
Non-lit: optical power<-15dBm
Green: -12dBm<optical power<+3dBm
Red:optical power>+3dBm
F-RFoF-TX/RX
F-RFoF-TX: Bi-Directional CATV RF fiber optic TRANSMITTER (1550nm TX) 45-1000Mhz and Return Path RECEIVER (RX)5-42Mhz,
F-RFoF-RX: Bi-Directional CATV RF fiber optic RECEIVER (RX) 45-1000Mhz and Return Path TRANSMITTER ( 1310nm TX) 5-42Mhz
Item A |
Unit |
F-RFoF-TX | |
Return Path Optical Receiver Parameters |
|||
Optical Parameters |
|||
Input Optical Power |
dBm |
-12 ~ +3 |
|
Optical AGC |
dBm |
+2 to -7 |
|
Optical Return Loss |
dB |
>45 |
|
Input wavelength |
nm |
1260 ~ 1600 |
|
Optical Connector |
|
SC/APC |
|
Optical Fiber Type |
|
Single Mode |
|
RF Parameters |
|||
Frequency Range |
MHz |
5~42 |
|
Flatness |
dB |
±0.5 |
|
Output Level |
dBμV |
≥90 -1dBm? |
|
Output Return Loss |
dB |
≥14 |
|
Output Impedance |
Ω |
75 |
|
NPR Dynamic Range |
dB |
≥30 dB |
|
Forward Path Optical Transmitter Parameters |
|||
Optical Parameters |
|||
Laser Type |
|
DFB |
|
Output wavelength |
nm |
1550±10 |
|
Output Optical Power |
mW |
1(0dBm) |
|
Optical Return Loss |
dB |
>45 |
|
Optical Connector |
|
SC/APC |
|
RF Parameter |
|||
Frequency Range |
MHz |
54~1000 |
|
Flatness |
dB |
±0. 5 |
|
Input Level |
dBμV |
80±5 (+15 to +25dBmv) |
|
Input Return Loss |
dB |
≥14 |
|
Input Impedance |
Ω |
75 |
|
C/N |
dB |
≥ 51 |
Note 1 |
C/CTB |
dB |
≥ 60 |
|
C/CSO |
dB |
≥ 60 |
|
Other Parameter |
|||
Power Supply |
|
12V/1.5A |
|
Working Temperature |
C |
-25~+60 |
|
Storage Temperature |
C |
-40~+65 |
|
Power Consumption |
W |
<4 |
|
Dimension |
mm |
173L x 102W x 40H |
|
Item B |
Unit |
F-RFoF-RX | |
Forward Path Optical Receiver Parameters |
|||
Optical Parameters |
|||
Input Optical Power |
dBm |
-12 ~ +3 |
|
AGC Range |
dBm |
+2 to -7 |
|
Optical Return Loss |
dB |
>45 |
|
Input wavelength |
nm |
1260 ~ 1600 |
|
Optical Connector |
|
SC/APC |
|
Optical Fiber Type |
|
Single Mode |
|
RF Parameters |
|||
C/N |
dB |
≥ 51 |
Note:1 |
C/CTB |
dB |
≥ 60 |
|
C/CSO |
dB |
≥ 60 |
|
Frequency Range |
MHz |
54 ~1000 |
|
Flatness |
dB |
±0.75 |
|
Output Level |
dBμV |
≥80 |
|
Output Return Loss |
dB |
≥14 |
|
Output Impedance |
Ω |
75 |
|
Return Path Optical Transmitter Parameters |
|||
Optical Parameters |
|||
Laser Type |
|
DFB |
|
Output wavelength |
nm |
1310±10 |
|
Optical Return Loss |
dB |
>45 |
|
Output Optical Power |
mW |
1(0dBm) |
|
Optical Connector |
|
SC/APC |
|
RF Parameters |
|||
Frequency Range |
MHz |
5~42 |
|
Flatness |
dB |
±0. 5 |
|
Input Level |
dBμV |
75~85 ( (+15 to +25dBmv) |
|
Input Return Loss |
dB |
≥14 |
|
Input Impedance |
Ω |
75 |
|
NPR Dynamic Range |
dB |
≥30 dB |
|
Other Parameters |
|||
Power Supply |
|
12V/1.5A |
|
Working Temperature |
C |
-25~+60 |
|
Storage Temperature |
C |
-40~+65 |
|
Power Consumption |
W |
<4 |
|
Dimension |
mm |
173Lx 102W x40H |
|
All RF products require singlemode fiber only. It's impossible to put
a digital RF signal on multimode, it flat out won't work regardless of
manufacturer. It's a physical impossibility.
Also everything we make for RF over Fiber all require SC/APC
connectors. If you don't have that kind of termination then you can
use jumper cables for the conversion.
I hope that helps. The Transmitter and Receiver set for the
F-RFoF-TxRx
The Thor 30db CATV Distribution Coax Amplifier supports 54-1000mhz - 158-channel Analog RF, Cable QAM, ATSC, DVB-T, ISDB-T
This is a CATV fiber optic receiver for transporting RF signals in the 40-870 MHz range. The unit can accept optical signals in all bands.