2 independent optical receiving module low noise and high responsivity photodiode constant output level Remote controllable
Brief Introduction
YTOR320GB-4 upstream optical receiving module has 2 independent built-in optical receiving units, by using low noise and highly responsive photo-diode, it has super CNR performance. In addition, advanced output level control with optical power compensation enables a constant output level. Perfect MCU auto-monitoring-and-control circuitry as well as precise data collecting system, device real-time operating parameters can be transmitted to head end through system platform transponder, thereby remote control can be conveniently managed.
Main Features
Optical receiving part uses low noise photo-diode, which is highly responsive and CNR performance is excellent.RF section uses two-stage low noise push-pull amplifier module, plus advanced power compensation output level control, output level is very stable.Added one stage high performance band-pass filter, effectively curbs upstream converging noise.Built-in ingress noise switch, make users easy to locate noise source.All real-time operating parameters of this device can be shown on VFD display of central monitoring unit, and each operation and control function is realized through the centralized monitoring unit.Has element management interface, through system platform’s transponder, device real-time operating parameters can be sent to head end, remote control is fairly handy.One module integrates two separate optical receiving units, which considerably improves device installation density. In addition, each optical receiving unit’s output level, power reference point and ingress noise switch can be independently controlled.Specifications
Item | Unit | Spec. |
Optical Spec. | ||
Operating Light Wavelength | nm | 1290-1570 |
Optical Receiving Power | dBm | -16-+3 |
Fiber Connector | SC/APC | |
System Spec. | ||
CNR | dB | ≥51 |
CTB | dB | ≥61 |
CSO | dB | ≥62 |
RF Spec. | ||
Frequency Range | MHz | 5-200 |
Output Level | dBuV | 96, 0-10dBm optical receiving power |
Flatness | dB | ±1 |
Return Loss | dB | ≥16 |
Output Impedance | ohm | 75 |
RF Test Port | dB | -20 |
General Spec. | ||
Power Consumption | W | 15 |
Operating Temperature | °C | -10-+55 |
Storage Temperature | °C | -40-+70 |
Relative Humidity | % | Max 90 without condensation |
Test conditions: 12dB link loss, loaded with 3-channel PLA-D analog TV signal, and input optical power is -10dBm.
Upstream Optical Receiving Module
