group nameCATV Optical Transmission
Min Order1 piece
brand nameEASTEC
modelE-8721
update timeWed, 15 Aug 2012 22:44:53 GMT
Min Order1 piece
Introduction
E-8721 series outdoor super low power optical receiver is one extraordinary product that is manufactured by our company by selecting Japanese FUJITSU highly sensitive optic radio-detector, and renovated through further technological improvement on basis of our series optical receiver. Equipped with FUJITSU highly sensitive optic radio-detector for internal integrated GaAs low noise pre-positioned amplifying circuit, it ensures normal receiving of signal even if optic power receiving range is as low as -9dBm, and enables easy restoration of normal operation of those optic nodes that could not operate normally due to lower optic power. It is the choice of high performance-price ratio product suitable for medium and small sized CATV network.
Features
l Japanese FUJITSU super highly sensitive optic radio-detector as optic receiving part; original PHILIPS or MOTOROLA low noise push-pull amplifier module as RF amplifying circuit at front position, and PHILIPS or MOTOROLA diplex amplifier module as output. (GaAs amplifier module is available according to customer’s requirement.)
l With built-in inserted (reserve) return-path reverse transmission optic emitting assembly, it is easy to open return path.
l Inserted diplex filter, inserted fixed equalizer, fixed attenuator, inserted output tap, 8-level optic power indication, are scientifically and reasonably laid out at test port, allowing easier engineering debugging.
l Al casting waterproof casing, highly reliable switching power supply, rigorous anti-thunder system, ensure the product’s constant stable operation under outdoor abominable condition.
l Able to operate normally under -9dBm super low optic power condition, with high performance-price ratio, suitable for medium and small sized CATV network.
Specifications
Item | Unit | Specifications | ||
Forward Optical Receiving | ||||
Optical Parameters | ||||
Receive Power | dBm | -7~+3 | ||
Advised | dBm | -3~+1 | ||
Optical Return Loss | dB | >45 | ||
Receive wave | m | 1100~1600 | ||
Optical Connector Type | PC/APC,SC/APC or custom-made | |||
Fiber Type | Mono-mode | |||
Link Performance | ||||
C/N Ratio | dB | ≥52 | ≥51 | ≥51 |
C/CTB | dB | ≥69 | ≥67 | ≥65 |
C/CSB | dB | ≥62 | ≥61 | ≥60 |
RF Parameter | ||||
MHz | 45~750(860) | |||
In-Band Flatness | dB | ±0.5(45~550MHz);±0.75(550~750(862))MHz | ||
Output Level | dBµV | ≥94 | ≥94 | ≥92 |
Max.Output Level | dBµV | ≥116 | ≥112 | ≥108 |
Output Return Loss | dB | ≥16(45~550MHz);≥14(550~750(862)MHz) | ||
Output Impedance | Ω | 75 | ||
Reverse Optical Power Output | ||||
Optical Parameter | ||||
nm | 1310±10 | |||
Transmitting Wave | dBm | 1~5 | ||
Optical Connector Type | FC/APC,SC/APC | |||
RF Parameter | ||||
MHz | 5~65 | |||
In-Band Flatness | dB | ±1 | ||
Output Level | dBµV | 85~90 | ||
Output Impedance | Ω | 75 | ||
General | ||||
Power Supply Voltage | V | AC(130~265)V,AC(30~90)V | ||
Work Temperature | ℃ | 40~60 | ||
Storage Temperature | ℃ | 40~65 | ||
Relevant Humidity | % | 95% | ||
Power Loss | VA | ≤35 | ||
Dimensions | mm | 210(L)*132(W)*135(H) |
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