Direct Coupling Digital Optical Fiber Repeater
2020-07-03 14:14
RDR400-27
UHF 5W | 8 Channels Selective
The traditional analog optical fiber repeater is widely used, but in the past few years, the problem has gradually been shown. Analog optical fiber transmission mode is difficult to solve the long-distance transmission of multi-carrier signal and large capacity, a large dynamic range of signal coverage problem; the actual project cannot be fully resolved in recent years, the large coverage (high receiver sensitivity) and uplink interference between the base station. The limitations of technology have resulted in a low return on investment. The Digital optical fiber drawing system is a new generation of network optical fiber transmission coverage equipment. The base station radio frequency signal is converted into a digital optical signal for transmission. It can effectively overcome the problems caused by the traditional optical fiber cover equipment, which can greatly improve system efficiency. Digital optical fiber drawing system in the city center area, large exhibition hall, stadium, university campus or tunnel, high-speed railway, highway, etc. can be excellent to solve the traffic problem, and effectively improve the utilization of equipment resources. | ![]() |
Features
- Superior RF performance, high efficiency.
- High Gain and Low Noise Figure.
- Operating frequency can be customized.
- Advanced PA and PLL technology, high stability, and reliability.
- Using digital intermediate frequency technology. Stabler signal quality, higher transmission speed, and larger transmission capacity
- Equipped with high speed and high dynamic ADC, DAC technology, ensure good signal quality.
- Uplink time slot squelches lower system noise. A master unit with more than a remote unit. The noise performance is greatly improved.
- Easy installation, operation, and maintenance.
- Flexible to any environment and low cost
Specifications
Characteristics | Downlink | Uplink |
Frequency Range (Can be customized according to customer requirements. Operation bandwidth is 5MH, and duplex bandwidth is 10MHz.) |
350MHz~520MHz | 350MHz~520MHz |
Bandwidth of Channel | 25KHz | |
Number of Channels | 8 | |
Output Power(Max) | 37±2dBm | -10±2dBm |
Max Gain | 50±3dB | 50±3dB |
Adjustable Gain Range | 30dB @ 1dB step | 30dB @ 1dB step |
Noise Factor | / | ≤5dB @ full gain |
Automatic Level Control(ALC) | Output power variation < 2dB or be off when adding 10dB at max output power. Control range≥20dB. |
|
Pass Band Ripple | ≤3dB | |
VSWR | ≤1.5 | |
Spurious Emission | 3GPP compliant | |
Monitoring & Control | Local::RS232; Remote:IP (Ethernet) | |
RF Interface | N/F, 50Ω | |
Optical Interface | Master unit: LC/UPC; Slave unit: FC/APC | |
Optical Module | SPF,1.25G bps | |
Optical Transmission Distance | ≥20km | |
Number of Slave Units | Up to 256 Slave Units per 1 Master Unit | |
Power Supply Mode | Master Unit /Slave Unit: AC100~260V,45~55Hz | |
Power Consumption | Master Unit: ≤30W; Slave Unit: ≤150W | |
Operation Temperature | -25℃~+55℃ | |
Casing class | Master Unit: IP40; Slave Unit: IP65 | |
Weight | Master Unit: ≤8kg; Slave Unit: ≤25kg | |
Dimension (W*L*H) | Master Unit: 483mm×310mm×133mm; Slave Unit: 357mm×453mm×160mm |