Long range outdoor microwave radio links
1.2.4/5.8G PDH link
2.4/8E1 backhaul radio
3.Cost-effective Digital Microwave system
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Description of microwave radio links
microwave radio links provides reliable, full-duplex data communications between two sites with line-of-sight clearance.
microwave radio links provides nE1(n=4 or 8) and Ethernet bridge link allowing the user to connect any data terminal devices with E1, ports V.35ports and a 10/100BaseT port, which complies with CCITT G.703, CCITT V.35 andIEEE802.3.The activation of the E1 and V.35 link are auto detected and the throughput bandwidth for the Ethernet data is auto adapted from 2Mbps to 14Mbps.10/100BT interface auto-sensed or user definable operation mode.Data is modulated and transmitted to the remote-end equipment where it is recovered and passed to the receiving user device. This process occurs simultaneously in both directions .
microwave radio links uses spread spectrum processing which reduces the transmitted power density and thus reduces the potential for interference into the neighboring communications systems. For this reason, many government sallow such system to operate without a site license.
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Highlights of microwave radio links
♣ 1RU rack design, high performance and reliability
♣ Frequency Range: 2.4/5.8GHz
♣ Flexible Interface Capability: 4E1, 8E1
♣ High-speed IP Interface at 8/16Mb/s
♣ RS encoding, QPSK Modulation
♣ Frequency Agility and easy Tuning on site
♣ Support SNMP
♣ LCD Indicator
♣ ODU Integrate with Plane Antenna
♣ Low power consumption, low noise figure and high gain
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Specification of microwave radio links
System features | Demodulation | QPSK demodulation | |
Type | microwave radio links | Connector | N-typed(F), Impedance 50R |
System structure | IDU,ODU,Antenna and Accessories | Terminal Interface | |
Frequency band | 2.4/5.8GHz | Data capacity | nE1 (n=4 or 8) |
System gain | 106dB (not including antenna gain) | Data rate | 16.384Mbps |
Operating frequency | A, B, C Band | Connector | BNC and DB-25 |
Tx/Rx interval | 65MHz | Data interface | Comply with CCITT G.703 and CCITT V.35 |
RF bandwidth | 20MHz | Power Supply | |
Transmitter | Input voltage | -48V±10%DC | |
RF output | +20dBm/+24dBm | Power consumption | 30W/-48VDC(Max. transmitting power) |
Modulation mode | QPSK | Fuse | 2A(fast) |
Frequency stability | ≤2.5ppm | Environment | |
VSWR | ≤1.3 | Indoor temperature | -10~+50°C |
Output power adjustment range | 15dB | Outdoor temperature | -40~+60°C |
In-band flatness | ≤1dB | Humidity | 95% non-condensed |
Spurious | ≤-60dBc | Storage temperature | -55~125°C |
IF output frequency | 70 MHz | Dimensions | |
IF output power | -25dBm ~0dBm | IDU(W×H×D) | 436×44×248mm3 |
Connector | N-typed(F), Impedance 50R | ODU(W×H×D) | 450×126×270mm3 |
Receiver | Weight | ||
Rx sensitivity | -105dBm@4E1 -84dBm@8E1 -78dBm@ IP LAN | IDU | 3.5Kg |
Noise Factor | ≤4.5dB | ODU | 4.5Kg |
AGC Range | ≥60 dB |
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IF output level | 0±3dBm |
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IF Input Frequency | 70 MHz |
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