Overview
MXT-OR-860NDR-I outdoor 4-output optical receiver is a kind of lately researched high-quality CATV network products. It adopts the reasonable combination of NEC GaAs amplifying module. AGC/MGC function. When input optical power is in the range of -6 ~ +1dBm, output level is stable and it is characterized by high performance index. Single-chip microcomputer control LED numeral displays each items of operation parameter, which makes CATV network project can be tested more conveniently. Digital signal and analogue signal can be transmitted at the same time. This is priority choice in HFC network system construction.
Features
● 1310nm and 1550nm dual-window receiving.
● Single-chip microcomputer controls AGC/MGC status and output level remotely.
● Four-digit high-bright LED numeral tube displays each items of operation parameters real-timely
( optical power, output level, inside temperature, voltage, current, etc)
● RF output level, gain and slope can be adjusted.
● High-reliability switch power supply, small temperature increasing, high switching power and wide
voltage range.
● Each port set up AC60V LED display indicator, and operate easily.
● Optional network management responder(I sort or II sort) component complied with SCTE HMS standard, it can remote monitor optical node's operation status and performance parameter real timely.
● Perfect surge suppression circuit, it can prevent surge stroke and light stroke efficiently.
● Built-in AC60V independent supply power port, can be used conveniently.
● High-quality die-cast aluminum housing which is characterized by dust-proof, water-proof, shield, fine performance of heating-dissipating and convenient installation.
Block diagram
Specifications
Table 1 down path channels performance parameter
Items | Units | Parameters |
Model |
| MXT-OR-860NDR-I |
RF output ports |
| 4 |
Receiving optical wavelength | nm | 1290～1600 |
Optical connector type | - | FC/APC or SC/APC |
Input optical power range | dBm | -8～+2 |
Optical return loss | dB | ≥50 |
In-band flatness | dB | ±0.75 |
Frequency range | MHz | 47～862 |
Output RF ports | - | 4 |
RF output level | dBµV | ≥110 dBuV（-1dBm receiving） |
RF output impedance | Ω | 75 |
Attenuation adjusting range | dB | 0～20 |
Equalization adjusting range | dB | 0～18 |
Output return loss | dB | ≥16 |
Optical link C/N | dB | ≥52（-1dBm receiving，59 channels PAL-D） |
Optical link C/CTB | dB | ≥67（-1dBm receiving，59 channels PAL-D） |
Optical link C/CSO | dB | ≥62（-1dBm receiving， 59 channels PAL-D） |
Power supply | V | AC35～90 or AC110～265 |
Power consumption | W | 26（Max） |
Operation temperature | ℃ | -40～+55 |
Dimension | mm | 320×220×130 |
Net weight | Kg | 3.3 |
Table 2 up path channels performance parameter
Items | Units | Parameters |
Optical transmission wavelength | nm | 1310±10 |
Output optical power | mW | 1～3 |
Optical connector | - | FC/APC or SC/APC |
Frequency range | MHz | 5～37/40/47/65 |
In-band flatness | dB | ±1.0 |
Input level | dBuV | 85～90 |
RF output impedance | Ω | 75 |
