- DC Remote Power Supply System
- Riteoptic DC remote power supply transfer the -48v DC voltage of the communication room to the remote end after DC / DC conversion and through a composite optical cable or a DC remote dedicated cable to provide a power supply system for the remote base station. Based on the different transmission voltages on the cables, the base station DC remote power supply system is divided into two types: 280V and 380V. The 280VDC system has a low line voltage but a short transmission distance; the 380VDC system has a long transmission distance but a high line voltage.
Application: The system, composed of three parts including central office equipment, remote equipment and photoelectric hybrid cable, can isolate and boost the stable -48V power supply in the equipment room to DC250V ~ DC410V, and transmit it to the remote device with a maximum efficiency through a photoelectric hybrid cable. The remote end converts the DC high voltage to DC48V / DC280V / AC220V to the load (RRU), fiber optic repeater, small macro base station, micro-cellular base station, dry put, WLAN, PTN equipment, outdoor integrated access cabinet, EPON system (ONU) and other equipment provide 24-hour stable, maintenance-free power supply under harsh conditions.
Features:
• The base station can work normally with the remote DC power supply when the mains power fails ;
• Avoid coordination with the electricity industry department and local users when they access the city electricity;
• Save the cost of AC power;
• Easy site selection without influence of mains power;
• It can save outdoor UPS and solve the long-term maintenance cost of the power supply;
• Low maintenance cost, almost zero maintenance;
• Convenient line construction. If a composite optical cable is used, there is no need to lay transmission cables specifically, which saves line investment.
• Safe and reliable: The transmission line has protections such as open circuit, short circuit, leakage, strong current intrusion, lightning protection, etc. When a line failure occurs, the central office immediately stops outputting voltage, and only outputs a line safety detection voltage of ≤40V, and automatically resumes power supply within 60 seconds after the line failure returns. Ensure the safety of the line and maintenance personnel.
UPS
Integrated Power Supply for Micro Station