Overview
MXT-OR-860NDR-Ⅱ outdoor optical receiver is a kind of new high-quality CATV network product. It adopts the reasonable combination of GaAs NEC amplifying module, AGC/MGC function. When input optical power is in the range of -6~+2dBm, output level will be stable and it is characterized by high performance index. Single-chip microcomputer controlling LED numeral pipe displays each operating parameter, which makes CATV network project very easy to debug. Digital and analogue signals can be transmitted at the same time. This is the priority choice in HFC network system construction.
Features
● 1310nm and 1550nm double-window receiving;
● Single-chip microcomputer controls AGC/MGC status and output level remotely.
● Four-digit high-bright LED number tube displays the unit’s each operating parameter real-timely
(optical power, output level, internal temperature, voltage, current, etc).
● RF output level, gain and slope all can be controlled and modulated remotely (equipped in SNMP) or keys are adjusted.
● High-reliable switching power supply, small temperature rising, high converting efficiency and wide
voltage range.
● Each port is equipped AC60V LED indicator light, easy to operate.
● Network manager responder (sort I or II) component complying with SCTE HMS standard can be
chosen. Operating status and performance parameter of optical node can be controlled and monitored remotely.
● Perfect surge suppression circuit, it can prevent surge stroke and light stroke efficiently.
● Built-in AC60V sole power port, easy to operate.
● High-quality die-casting aluminum housing, it is characterized by dust-proof, water-proof, good shield and good performance of heat-dissipating, easy to install.
Block diagram
Specifications
From 1 Forward path
Items | Units | Parameters |
Product model |
| MXT-OR-860NDR-Ⅱ |
RF output port |
| 4 |
Optical wavelength receiving | nm | 1290～1600 |
Optical connector type | - | FC/APC or SC/APC |
Input optical power range | dBm | -8～+2 |
Optical controlling AGC input range | dBm | -6～+2（default）/-9～+2 |
Optical return loss | dB | ≥50 |
Band-in flatness | dB | ±0.75 |
Frequency range | MHz | 47～862 |
RF output level | dBµV | ≥110 dBuV（-1dBnm receiving）/106 dBuV |
RF output impedance | Ω | 75 |
Attenuator adjusting range | dB | 0～16 |
Equalizer adjusting range | dB | 0～16 |
Output return loss | dB | ≥16（47～862MHz） |
Optical link C/N | dB | ≥52（-1 dBm receiving，40 ch PAL-D） |
Optical link C/CTB | dB | ≥67（-1 dBm receiving，40 ch PAL-D） |
Optical link C/CSO | dB | ≥62（-1 dBm receiving，40 ch PAL-D） |
Power supply voltage | V | AC35～90 or AC110～265 |
Consumption | W | 28.5（Max） |
Working temperature | ℃ | -40～+55 |
Dimension | mm | 320×220×130 |
Net weight | Kg | 3.3 |
Form 2 Return path
Items | Units | Parameter |
Optical transmitting wavelength | nm | 1310±10 |
Output optical power | mW | 1～3 |
Optical return loss | dB | ≥45 |
Output optical power stability | dB | ±1.5 |
RF input return loss | dB | ≥16 |
Optical connector type | - | FC/APC or SC/APC |
Frequency range | MHz | 5～37/40/47/65 |
Optical link flatness | dB | ±1.0 |
Input level | dBuV | 85～90 |
RF output impedance | Ω | 75 |
