供应远程光发射机
产 品 说 明
激光发射机 +6dBm输出
EMLT-1550-FH series of laser transmitters are designed for carrying analog and QAM digital channels for SCTE next generation Fiber To The Home (FTTH) or RFOG requirements. EMLT-1550-FH are a cost-effective and versatile transmission solution for RFoG/FTTH networks regardless of architecture.EMLT-1550-FH transmitters incorporate a zero-chirp external modulator and pre-distortion circuit which allow 65 km transmission range, while maintaining a high CNR and excellent CSO/CTB performance. The SBS launch power level is set to +13 dBm. EMLT-1550-FH transmitters can support up to 77 NTSC analog channels. Designed to be digitally ready, the transmitters can also be loaded with additional QAM modulated data and HDTV channels. QAMnet EMLT-1550-FH transmitters are available in output power level of +6 dBm, +7 dBm, +8 dBm and +9 dBm.
Features:
- High power CW DFB laser and external modulator
- 65 km standard transmission range
- SBS suppression level of +13.5 dBm
- Supports 77 analog NTSC plus QAM digital channels
- AGC (Automatic Gain Control) and Manual Gain Control
- 45-870 MHz modulation bandwidth
Technical Specifications
Model Number EMLT-1550-FH-06
Technical Specifications
Transmission Range 65km standard
Laser Wavelength Range 1550nm ± 15nm (standard), available with 40 DWDM wavelengths
Optical Output Power 6dBm minimum
Number of Optical Output 1 standard, 2 optional
Noise Bandwidth 4 MHz
Carrier Noise Ratio (CNR) 53dB @ 0dBM received power
Composite Second Order (CSO) -63dB minimum
Composite Triple Beat (CTB) -63dB minimum
SBS Suppression Level 13.5dBm
RF Gain / OMI Adjustment Range +6dB to -6dB
Input RF Power Level 8 - 20 dBmV
Frequency Plan NTSC 77 channels + QAM channels + QAM
RF Frequency Range 45 MHz to 870 MHz
Flatness in Frequency Range ± 0.75dB over full range
Input RF Impedance 75 Ohm
Input RF Return Loss 16 dB minimum
Mechanical Specifications
Operating Temperature Range 0°C to +50°C
Storage Temperature Range -40°C to +70°C
Power Consumption 75 W maximum
Power Supply 80 -240 VAC, 43 - 62 Hz
Housing Dimensions 19
Front Panel Display LCD
Control / Monitoring DFB laser temperature, output power
Alarm Status Over temperature, over current
Optical Connectors SC/APC
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