Thor Broadcast F-RF-1550-Tx User manual

User Manua l
F-RF-1550-Tx

F-RF-1550-Tx
Tel: [phone] Email: [e-mail] http://www.thorbroadcast.com
A Note from Thor Broadcast about this Manual
Intended Audience
This user manual has been written to help people who have to use, integrate and to install the product.
Some chapters require some prerequisite knowledge in electronics and especially in broadcast technologies
and standards.
Disclaimer
No part of this document may be reproduced in any form without the written permission of Thor Broadcast.
The contents of this document are subject to revision without notice due to continued progress in
methodology, design and manufacturing. Thor shall have no liability for any error or damage of any kind
resulting from the use of this document.
Copy Warning
This document includes some confidential information. Its usage is limited to the owners of the product
that it is relevant to. It cannot be copied, modified, or translated in another language without prior written
authorization from Thor Broadcast.

F-RF-1550-Tx
Tel: [phone] Email: [e-mail] http://www.thorbroadcast.com
Table of Contents
Contents
1. PRODUCT OVERVIEW ................................................................................................................................ 4
2. PERFORMANCE CHARACTERISTICS ............................................................................................................ 4
3. BLOCK DIAGRAM....................................................................................................................................... 4
4. TECHNICAL PARAMETERS .......................................................................................................................... 5
5. OPERATION INSTRUCTIONS OF THE DISPLAY MENU .................................................................................. 6
6. STRUCTURE DESCRIPTION ......................................................................................................................... 8
7. DIMENSIONS ............................................................................................................................................. 9
8. ATTENTION.............................................................................................................................................. 10
9. PACKING LIST........................................................................................................................................... 10

F-RF-1550-Tx
Tel: [phone] Email: [e-mail] http://www.thorbroadcast.com
1. Product overview
Thor Fiber 1550nm RF directly modulated optical transmitter with electronically controlled dispersion
compensation. It supports up to 1.2GHz band and DOCSIS 3.1 system. With two RF inputs and high
isolation, it enables the signal transmission of QAM and IPQAM smoothly. Supports a transmission
distance of 50KM with electronically controlled dispersion compensation. Built-in CWDM is optional for
multi-wavelength networking.
2. Performance Characteristics
1.2GHZ band, support DOCSIS 3.1 system.
The AGC and MGC gain control modes are optional.
Two inputs with 50dB isolation for high quality RF insertion.
Dual power supply; hot backup; a variety of power supply options are available, optional AC100-240V
and DC48V.
Laser output power, bias current and cooling current are detected in real time.
Optional CWDM for optical signal insertion.
Electronically controlled dispersion compensation can support a transmission distance of 50KM.
Low-cost solution is comparable to the performance of external modulated transmitter.
ITU standard wavelength is optional.
3. Block Diagram
Note: The optical attenuator in the red dashed box and the wavelength division multiplexer in the
blue dashed box are optional.

F-RF-1550-Tx
Tel: [phone] Email: [e-mail] http://www.thorbroadcast.com
4. Technical Parameters
Item
Unit
Parameter
Optical part
Optical wavelength
nm
ITU wavelength
Laser type
Butterfly-typed DFB laser
Optical modulation mode
Direct optical intensity modulation
Optical connector type
FC/APC or SC/APC
Output optical power
mW
10
The insertion loss of the VOA and CWDM is
excluded.
External optical signal input
dBm
-5～10
RF Characteristics
Frequency range
MHz
47～870/1003/1218
RF input level
dBu
V
77± 5
Flatness in band
dB
± 0.75
Input return loss
dB
≥ 16
RF AGC control range
dB
±5
RF MGC adjustable range
dB
0～20
RF input isolation
dB
≥
50
Isolation between two RF inputs
RF input test port
dB
-20±1
Laser drive level test port
dB
-20±1
Electronically controlled
optical attenuator tolerance
dB
≤1: ATT 0-15dB
≤3: ATT 16-20dB
CNR
dB
≥
48
550MHZ 59CH analog signal 77dBuV/CH
550-870MHZ 40CH digital signal 67dBuV/CH
25 Km, -1dBm input
C/CSO
dB
≥
58
C/CTB
dB
≥
63
CNR
dB
≥
46
550MHZ 59CH analog signal 77dBuV/CH
550-870MHZ 40CH digital signal 67dBuV/CH
50Km, -1dBm input
C/CSO
dB
≥
55
C/CTB
dB
≥
63
MER
dB
≥
40
25 Km, -1dBm input, 96CH digital 77dBuV/CH
≥
39
50 Km, -1dBm input, 96CH digital 77dBuV/CH
Others
Maximum power
consumption
W
≤10
Operating temperature
℃
-5 ～+ 55
Storage temperature
℃
-30 ～+ 70
Weight
Kg
5.5