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View of the receiver
Rear view
The included accessories
The ROS-121M R81721optical receiver cooperates with MMH-3000 TERRA headend. It receives optical signals and converts them into RF signals. It directly cooperates with optical transmitters MOS-211x ( R81720 or R81720B). The receiver has two separate paths. Automatic gain control ensures a constant level of output RF signals.
Distinguishing features
- remote monitoring function (monitoring of operation of OD-200 or OD-200P optical nodes)
- low noise PIN photodiode detector
- AGC based on optical input power
NOTICE
- The transmitter can be switched on only when the whole link has been carefully installed.
- It is not allowed to directly connect the optical transmitter and receiver. For testing one/both of the devices, one needs to employ appropriate attenuator.
Specifications
| Name | Optical receiver ROS-121M |
| Code | R81721 |
| Output frequency range | 5-200 MHz |
| Optical input power | -15...2 dBm |
| Optical wave length | 1100-1600 nm |
| RF output level | 95 dBuV |
| Output return loss | 18 dB |
| Gain adjustment | 30 dB (0.5 dB step) |
| Remote monitoring function | with CHM Master software |
| Optical connectors | 2xSC/APC |
| Power | 187...250 V 50 Hz 12 W |
| Operating temperature range | 0...50 ºC |
| Dimensions | 485x58.5x171 mm |
| Weight | 3 kg |
Technikai adatok
| Nazwa urządzenia | Odbiornik optyczny ROS-121M |
| Kod | R81721 |
| Zakres częstotliwości | 5-200 MHz |
| Poziom optycznego sygnału wejściowego | -15...2 dBm |
| Okno pracy | 1100-1600 nm |
| Poziom wyjściowy RF | 95 dBuV |
| Output return loss | 18 dB |
| Regulacja wzmocnienia | 30 dB (z krokiem 0,5 dB) |
| Funkcja zdalengo monitorowania | CHM Master |
| Złącza optyczne | 2xSC/APC |
| Pobór energii | 187...250 V 50 Hz 12 W |
| Temperaturowy zakres pracy | 0...50 ºC |
| Wymiary | 485x58,5x171 mm |
| Masa | 3 kg |