Thor 2 mW CATV RF Over Fiber Tx 45-870 MHz - Manual (Page 2)

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1. Product Summary
Thor F-RF series laser transmitters are used to create CATV HFC networks, and primarily are
used for TV video signal, digital TV signal, telephone voice signal and data (or compressed data)
signal long-distance fiber transmission. This product uses high performance DFB laser transmitter
as the light source. Our RF drive adopts RF power digital automatic process techniques and
advanced RF pre-distortion circuit developed by our company. A built-in microprocessor
automatic monitoring system insures the system functions stably.
2. Functional Characteristics
1. Based on a high performance DFB laser with a narrow spectrum, good linearity and high
output power.
2. RF drive adopting RF power digital automatic processing techniques, can according to the
level of input RF signal and number of channels (15-84channels), automatically process drive
level power, making the C/N, CTB and CSO always in best worth, insure product function;
and be steady of output level.
3. Advance multi-frequency RF pre-distortion technique with an arsenide kalium component
drastically improves CTB and CSO, the most important parameter of CATV, and heightens
C/N at the same time.
4. Built-in microprocessor automatically monitors circuitry and can in real-time accurately
monitor optical output power and temperature of the laser to insure stable optical output
power, and prolong the working life of the laser.
5. Built-in blue VFD monitor on front panel can accurately display the equipment's working
status and parameters.
6. 19″ 1U height standard rack mount, equipped standard IEEE802.3 10Base-T Ethernet
network port and RS232 network port, can monitor equipment status in real time through the
network.
7. Support GB/T 20030-2005HFC Network control management protocol
3. Principle Drawing
4. Technique Parameter
4.1 Link path test condition
Special Note: Equipment technique parameters in this manual are given according to the test
methodology of GY/T143-2000 CATV system amplitude modulation laser transmitter and
receiver enter the net technique condition and measure method, and gained under its prescriptive
test condition.