CATV Fiber Optic 1550nm Transmitter – Externally Modulated
The MX-T8500AC series externally modulated transmitter delivers high performance signal transmission of NTSC, QAM, digital or compressed digital signals from 50-1000 MHz for CATV applications.
- General Details
The MX-T8500AC Series 1550nm Externally Modulated Optical Transmitters are designed for analog and digital CATV QAM signals. Maxcom’s 1550nm optical amplifiers adopt world class pump lasers and American made OFS erbium-doped optical fiber components. These units provide excellent APC, ACC and ATC control, superb design in the ventilation and heat-dissipation which ensure long life and a highly reliable operation of the pump laser.
Our 1550nm externally modulated technology for the optical transmitter has no laser chirp, low dispersion distortion, and a large extinction ratio, with excellent characteristics within 47~1000MHz. The External Modulator does not generate CSO distortion after reasonable bias. It can be followed by an EDFA (Multiport EDFA, such as the Maxcom MX5400 or MX5800 series) when used in large area coverage and local networks. Adopting WDM, multi-wavelength optical channels can be added and transmitted through one fiber.
The Maxcom MX-T8500AC adheres to current international industry techniques and standards. The unit’s light source occupies a narrow bandwidth ( Typ = 1MHz ), low noise, continuous wave DFB laser, which is advantageous to reduce the influence of dispersion. The unit’s signal modulation adopts CATV special LiNbO3 external American modulators and uses optimized control technology with independent intellectual property, thus allowing it to reach high indexes of back-to-back CNR ≥ 52dB, CTB ≤ -65dB, CSO ≤ -65dB, SBS: 13 dBm. Lasers adopt 1548~1563nm CATV standard wavelength.
The LCD at the front panel offers equipment status and warning alarms. The laser will switch off automatically if optical power is lost, which offers protection for the laser.
When combined with EDFA optical amplifiers, such as the MX-A5100, MX-A5400 MX-A5800 Series, the Model MX-T8500AC allows system operators to cost-effectively transport a full slate of wideband video and data services and to distribute signals to many remote optical receiver/node locations, by utilizing the lower fiber attenuation characteristic of the 1550nm optical window. It is also designed to operate seamlessly with optical receivers and nodes from most leading manufacturers.
The MX-T8500AC is an advanced type externally modulated optical transmitter with high performance, high reliability, are applicable for distribution network links in large CATV systems, head-end, hubs and OTN’s.
- Example Application
- Model Selection
- MX-T8515AC – 1550nm CATV Externally Modulated Transmitter 1 output @ 5dBm
- MX-T8517AC – 1550nm CATV Externally Modulated Transmitter 1 output @ 7dBm
- MX-T8519AC – 1550nm CATV Externally Modulated Transmitter 1 output @ 9dBm
- MX-T851BAC – 1550nm CATV Externally Modulated Transmitter 1 output @ 11dBm
- MX-T851CAC – 1550nm CATV Externally Modulated Transmitter 1 output @ 12dBm
- MX-T8525AC – 1550nm CATV Externally Modulated Transmitter 2 outputs @ 5dBm
- MX-T8527AC – 1550nm CATV Externally Modulated Transmitter 2 outputs @ 7dBm
- MX-T8529AC – 1550nm CATV Externally Modulated Transmitter 2 outputs @ 9dBm
- MX-T852BAC – 1550nm CATV Externally Modulated Transmitter 2 outputs @ 11dBm
Equipped with Dual Power Supplies – Choice of AC or -48 VDC
- Specifications
FEATURES
• High performance: Externally modulated technology, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristics within 50~1000MHz.
• Narrow bandwidth (1MHz), lower noise, DFB continuous wave laser, is propitious to reduce the influence of dispersion.
• The operating bandwidth is up to 50~1000MHz
• CNR ≥ 52dB and excellent CTB, CSO index.
• SBS: 13 dBm fixed.
• ITU standard wavelengths avail on additional models.
• AGC/MGC mode is selectable. OMI can be optimized at unit.
• RS232 communication interface.
• Advanced SNMP network management function.
• 1+1 power supply backup, automatic switching.
• Auto-control chassis temperature.
• Excellent P/P ratio.*Additional Specification details are listed in the technical datasheet (downloadable PDF)
- Order Inquiry
- Documents
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