
Internal Modulation Transmitter 1550nm CATV Optical Transmitter
We firmly believe that people's character creates the cause and the high-quality RF Cable Connector, Iptv Gateway, Outdoor Epon OLT With EDFA open up the market. Our company warmly welcome customers from all over the world to have friendly exchanges, sincere cooperation and common development. It is our credo to maintain our leading position through R&D and the latest manufacturing processes. With reasonable commodity prices, fast logistics, high-quality services, and strong technical force, our company has won the support and trust of the majority of customers and has truly achieved a win-win situation for the company and customers.
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
Model (ST1550I) | -04 | -06 | -10 | -12 |
Optic Power (mW) | 4 | 6 | 10 | 12 |
Optic Power (dBm) | 6.0 | 8.0 | 10.0 | 10.8 |
Optic Wavelengt (nm) | 1550±20 | |||
Fiber Connector | FC/APC、SC/APC、SC/UPC (Selected by the Customer) | |||
Working Bandwidth (MHz) | 47~862 | |||
Channels | 59 | |||
CNR (dB) | ≥51 | |||
CTB (dB) | ≥65 | |||
CSO (dB) | ≥-60 | |||
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

Other products


Company introduction and certificate
We have more than 100 staff, 10% of them are senior technicians. With more than 1,000 square meters standards production assembling lines, we have strict QC procedures. Each unit of our product will go through 3 layer QC procedures, material checking before production, stabililty and performance testing after production, packing detection before delivery.
Most of our products are exported to South America, Russia, and North European countries. Currently, Softel has its branch office in Mexico and will launch another office in Colombia, continuing supplying for numerous agents, integrated dealers, and equipment producers all over the world.
Through keen international business competition in good faith, all of our staff members feel a big accomplishment & work under heavy responsibility. In addition, we are much proud of providing our invaluable customers with our high quality, high reliability, high efficiency, and competitive products.

FAQ
1. What are the payment terms that you support?
Usually, we accept T/T, PayPal, Western Union, and Alibaba Trade Assurance. You can select the terms of payment which is more convenient for you.
2. What about the lead time?
Usually, if there's stock, we ship the goods within 3~5 working days after the deposit is confirmed. If it is out of stock, the lead time depends.
3. How about the shipping?
When the package is small, we normally choose FedEx, DHL, TNT, and UPS and so on, while the goods have high weight and volume, we suggest using air or sea shipment.
4. How can I place an order?
(1) Negotiation is agreed upon for the product price and specifications.
(2) The Proforma invoice will be sent for confirmation.
(3) After the agreement on the proforma invoice, the customer makes the deposit.
(4) Manufacturing will be started as soon as the payment is confirmed by our bank.
(5) Ship out the goods within the agreed delivery deadline.
The company provides solutions to the needs of customers around the world with personalized customization, allowing the Internal Modulation Transmitter 1550nm CATV Optical Transmitter to add unique elements and becoming more vivid and rich, which greatly enhance the added value of products. Our company firmly believes that excellent quality can stand the test of time and perfect service can always eliminate the worries of customers. We implement the principle of giving priority to efficiency and giving consideration to fairness, so as to provide fair opportunities and conditions for the development of every employee.
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