

Manufactory Wholesale 1550nm Internal Optic Transmitter
with DFB Laser for CATV and RF Networks
Looking for a reliable solution for long-distance signal transmission? The 1550nm Internal Optic Transmitter features an imported DFB laser, ensuring high linearity and low chirp effect. With advanced RF driving amplifiers and thermoelectric refrigeration, it delivers optimal C/N ratios and stable performance. Ideal for CATV, RF networks, and telecom applications, it supports a bandwidth of 47-862 MHz and offers up to 12mW optic power. Its micro-processor software enables real-time monitoring, trouble alarms, and remote management via RS-232. Built to 19” standard shelf dimensions, it operates seamlessly from 110V to 254V.
• Imported DFB laser for high linearity | • Advanced RF driving amplifier | • Real-time monitoring and remote management | • 47-862 MHz bandwidth | • 19” standard shelf design








1550nm Internal Optic Transmitter adopt the imported DFB laser named SEI and so on.
1550nm Internal Optic Transmitter
1550nm Internal Optic Transmitter adopt the imported DFB laser named SEI and so on.
The internal RF driving amplifier and controlling circuit of this machine can ensure the best C/N. The perfect and stable circuit of optic power output and controlling circuit of thermoelectric refrigeration device of laser module assure the user the best quality and stable working for a long time.
The internal micro-processor software has many functions such as laser monitoring, number display, trouble alarm and on-line management. Once the working parameter of the laser is out of the fixed range, there will be a red light glistening to alarm.
The RS-232 standard connector makes it is possible to manage on line and monitor in another place.
1550nm Internal Optic Transmitter adopts 19”standard shelf and it can work with the voltage from 110V to 254V.



Technical parameters of 1550nm Internal Optic Transmitter
Channels


RF Input Level (dBμV)
Not with pre-distortion 78±5
With pre-distortion 83±5
Band Unflatness ≤0.75
Characteristics of 1550nm Internal Optic Transmitter
Low chirp effect, high linearity DFB laser , top-class ortel laser
Dual Module therefore drive, chirp compensation
Laser OMI AGC/MGC
Intuitional modulation status display
Dual power supply inside backup. Full-automatically swicth
Full-automatically control of casing temperature
2 years' warranty








Notice
1. Before installation or operation of unit, please carefully go through this manual.
2. ST1550I Series Transmitters should be serviced only by qualified personnel.
3. Before proceeding with installation and/or operation of transmitter, please assure that transmitter is well earthed.
4. ST1550I Series transmitters are Class III laser products. Use of controls, adjustments, and procedures other than those specified herein may result in hazardous laser radiation exposure.
Application of 1550nm Internal Optic Transmitter











About Us
FMUSER is a company specializing in broadcasting and television transmission systems and integrating hotel IPTV systems. The company was established in 2009 and has served over 180 countries worldwide. More than 20,000 television stations, radio stations, and hotel clients from different.
