COAX Cable Bi-Directional CATV RF Transmitter and Receiver over fiber - 45-1000Mhz Forward and Return Path 5-42Mhz

F-RFoF-TX/RX
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Description Features Drawings Model Selection Specification Q&A Documents Support
Description

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
The F-RFoF-TX  is a dual-purpose device; Forward RF 45-1000Mhz fiber optic TX on one fiber, and also CATV RF Return Path 5-42Mhz RX on the second fiber. 
The F-RFoF-RX does the opposite;  Forward RF 45-1000Mhz fiber optic RX on one fiber and  Return Path 5-42Mhz TX on the second fiber.
 
Using in pairs allows you to replace Coaxial Cable for long-distances up to 10Km.
Can also be used as a Fiber Break for copper to fiber isolation for secure areas (ie a SCIF room)
 - Bi-directional RF communication
-  Replicates, simulates copper Coax RF communication over two singlemode fibers
 - A Side sends forward RF and receives return path RF, B side receives Foward RF and sends back return path
 

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

 
Drawings
Model Selection

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

Specification

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

     
Question and Answers
Answer:

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

Documents
downloadf-rfof-txrx-user-manual.pdf
User's Manual is avalible only for logged users.
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