1.High reliability; 2.High anti interference capability; 3.Business interface rich; 4.Remote management capabilities.
Microwave series products use the technology of computer aided design ( CAD ) and computer aided manufacturing ( CAM ) design, with large scale integrated circuit FPGA, frequency synthesis, Modularization and other advanced technology, improving equipment integration, and ensure the equipment of high performance, high reliability. QPSK/16QAM modem, the data stream is processed by the energy diffusion random processing, RS coding, convolutional interleaving, punctured convolutional coding, modulation baseband forming processing, forward error correction ( FEC ) coding and decoding technique and time domain equalization technology. Greatly improve the bit error rate performance of the system, and the anti-interference ability, anti-multipath fading.
Properties of microwave series products:
1.Modular design, supports hot plug and play, easier to maintain equipment, upgrade; built-in LCD panel, convenient user configuration, operation;
2. Transmitting power range 0-23dBm, software adjustable, equipment with ATPC functions, operation optimization;
3. Rich user service interface, 4/8/16/24/32E1, LAN, E1+LAN services interface;
4. Local loop and distal ring back test function, convenient troubleshooting;
5. Channel selection, modulation mode QPSK or 16QAM, all software adjustable, convenient user configurations;
6. Support group online BER detection function;
7. Support for SNMP network management protocol and Web management, user management;
8. The system of protection, 1+0 or 1+1backup and frequency diversity backup, stronger stability and reliability;
9. Support analog service telephone call or digital IP telephone call, more convenient communication between sites;
10. Forward error correction (FEC) coding and decoding technique and time domain equalization technology. Greatly improve the bit error rate performance of the system, and the anti-interference ability, anti-multipath fading.
System description | ||||
Working frequency (GHz) | 15 | |||
Transceiver frequency interval (MHz) | 420/490 | |||
Transmission capacity | 4E1/8E1/16E1/24E1/32E1 | |||
Occupied bandwidth (MHz) | 3.5/7/14/28 | |||
Modulation type | QPSK/16QAM | |||
Transceiver frequencymeta-stable(ppm) | ±10 | |||
Standby mode | (1+0) No protection (1+1) Same frequency hot backup (1+1) Frequency diversity backup | |||
The selection of operating frequency | IDU or NMS | |||
E1 interface | Code type:HDB3; Interface impedance: 75Ω or 120Ω | |||
Ethernet interface | 10/100BASE-T , RJ45 | |||
Power supply voltage (V) | DC -48V±20% | |||
Power consumption (W) | 30 | |||
RF interface | UBR140 | |||
Transmitter | ||||
Transmitting Intermediate frequency (MHz) | 310 | |||
Output power (dBm) | QPSK | 23 | ||
16QAM | 20 | |||
Power regulating range | 0~max | |||
ATPC (dBm) | +5dBm~max | |||
Receiver | ||||
Receiving Intermediate frequency (MHz) | 70 | |||
Input power(dBm) | - 20 ~ - 90 | |||
Receiving threshold (dBm) BER=1E-6 | 4×E1 | -87/-83 | ||
8×E1 | -84/-80 | |||
16×E1 | -81/-77 | |||
32×E1 | /-74 | |||
Input saturation power(dBm) | -10 | |||
Auxiliary business and management | ||||
Service phone | 3.5mm(1/8 inch)*1 | |||
Auxiliary data interface | 19.2kbit/s, RS232C, RJ45 | |||
Software upgrade interface | 115.2kbit/s, RS232C, RJ45 | |||
Management interface | 100Mbit/s, 10/100BASE-T, RJ45 | |||
Operating system | WIN2000 / WINDOWS NT / WINXP | |||
Mechanics | ||||
Size (mm) | IDU:482 × 44× 265 ODU:265×265×110 | |||
Weight (kg) | IDU:3.5 ODU:5.5 | |||
Work environment index | ||||
Working temperature | IDU:0~+50°C ODU: -33~+55°C | |||
Working humidity | IDU: 20%~90% ODU:All-weather | |||
Altitude (m) | ≤4500 | |||
Digital microwave transmission system
