Cable TV 2*9dBm Fibre Optical 1550nm External Modulation Optic Transmitter
Product Features:
■ High quality: original system optimization control technology, RF pre-distortion technology in the case of ensuring excellent performance of CNR system to obtain the largest CTB, CSO and SBS indicators.
■ Flexibility: the phase modulation technology of the external modulator maximizes the incoming optical power to obtain long distance transmission while guaranteeing the excellent performance of the system CSO, and the SBS threshold 13, 16, 19 is field adjustable and applicable to different network transmission.
■ Reliability: high reliability design, built-in high performance double switch power supply, hot backup work, MS automatic switching; Automatic temperature control of chassis heat dissipation.
■ Intuitive: the machine is equipped with a microprocessor to monitor the working state of the external modulator and laser, and the key working parameters of the equipment can be visually displayed through the front panel display window.
■ Network management: built-in network management transponder, meet national standards, compatible with SCTE HMS standard.
Technical Index:
| S/N | Items | Unit | Parameters | Remark |
| 1 | Laser type | —— | DFB Laser | |
| 2 | Optical wavelength | nm | 1550±5 | If deviating from wavelength, please specify before ordering |
| 3 | Optical modulation | —— | External modulation | |
| 4 | Optical output power | dBm | 2*7,2*9,2*10 | optional |
| 5 | SBS Threshold | dBm | 16(Default) | 13,16,19 adjustable |
| 6 | Optical connector | | FC/APC,SC/APC optional | Please specify before ordering |
| 7 | Frequency range | MHz | 47～862 | 1000MHz for option |
| 8 | C/N | dB | ≥53 | GY/T143-2000 6.2.3.5 |
| 9 | Flatness | dB | ±0.75 | GY/T143-2000 6.2.4 |
| 10 | RF input Level | dBuV | 75～85 | AGC |
| 11 | C/CTB | dB | ≥65 | GY/T143-2000 6.2.5 |
| 12 | C/CSO | dB | ≥65 | GY/T143-2000 6.2.6 |
| 13 | RF input impedance | Ω | 75 | |
| 14 | RF input reflection loss | dB | ＞16 (47~1000MHz) | GB/T11381.1 4.2.2.2.5 |
| 15 | Power supply (double power hot plug) | V | 90~265 | 48VDC for option |
| 16 | Power consumption | W | ≤60 | |
| 17 | Working temperature | ℃ | -5～+50 | |
| 18 | Storage temperature | ℃ | -25～+70 | |
| 19 | Working humidity | % | 20%～85% | |
| 20 | Dimension | ″ | 19″×11″×1.75″ | (W)x(D)x(H) |
| 21 | SNMP | | RJ45 | |
| Note: under the condition of the specified link loss, in the 550 MHz frequency range configuration 59 PAL - D channel analog TV signals, in the 550 MHz to 750 MHz frequency range (862) transmit digital modulation signal, the digital modulation signal level (8 MHz bandwidth) is lower than analog signal carrier level 10 db, optical receiver input light rate of 0 DBM, measuring carrier combination of third order difference frequency ratio (C/CTB), combination of carrier, the second order difference frequency ratio (C/CSO) and carrier to noise ratio (C/N). |
| 1550nm Front panel and back panel: 
Packing: 
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Product Tags:
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Cable TV 2*9dBm 1550nm Optical Transmitter External Modulation DFB Laser Type Images
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