M900S 900 MHz NLOS Broadband Wireless Radio

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NEWS

Fri, 26 Apr 24 10:11 am EST

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Our Coordinates: Lat 42.75 N, Long 71.85 W

Point-to-Point IP/SDH/SONET Radios

M900S 900 MHz NLOS Wireless Ethernet System

M900S 900 MHz NLOS Wireless Ethernet System

Up to 20-mile range, 18 dB fade margin
3 Mbps usable subscriber throughput
4 non-overlapping channels, 6 MHz apart
Dual polarized antenna, external antenna connector
Robust interference rejection (ARQ)

The M900S Series point-to-multipoint wireless broadband platform utilizes the advantages of the 900 MHz license-exempt spectrum and delivers up to 3 Mbps to the subscriber. Ideal for non-line-of-sight (NLOS) deployment, this fully integrated outdoor system includes internal dual polarized antennas as well as connectors for optional external antennas.

Download the M900S 900 MHz NLOS data sheet - PDF Version

What's Included

AP or SU radio
Standard Power Supply
Power-over-Ethernet (PoE) Junction box
Mounting bracket for wall/pole

** EXT model includes only a connector for an external antenna and does not include an integrated antenna

Highlights

The M900S Series was designed for deployment in areas where foliage and other obstructions obscure line-of-sight between the access point (AP) and subscriber unit (SU). The system offers excellent receiver sensitivity and best-in-class overall system gain for outstanding non-line-of-sight (NLOS) range. The subscriber can expect typical NLOS performance of up to 6 miles or beyond*. Use of external antennas increases range and fade margin even farther. In addition, Spread Spectrum modulation promotes resistance to multipath fading. Combining SMARTPolling™ with Spread Spectrum modulation results in maximum cell performance.

Antenna Flexibility

The M900S AP and SU each include an integrated 10 dBi dual polarized patch antenna as well as a connector for optional external antennas. The lower cost M915S-SU-EXT features only a connector for an external antenna. External antenna options include omni antennas for the AP and yagi-style antennas for both the AP and SU. The auto-sensing feature on the M900S SU allows the firmware to choose the antenna with the strongest signal, or the user can manually select either the internal or external antenna.

Speed

The system delivers up to 3 Mbps and utilizes patent pending SMARTPolling™ algorithm to dynamically and adaptively poll subscriber units, ensuring the lowest latency for active subscribers.

Channel Flexibility

The system is configured with four channels, each 6 MHz apart. The user can redefine channels by selecting frequencies in single MHz increments. The SU scans all channels until it associates with a properly configured AP. This allows redundancy of APs as well as a simple and quick method to switch channels on an entire sector.

Interference Mitigation

The M900S Series offers powerful resistance to interference with the Automatic Repeat Request (ARQ) feature which automatically retransmits packets to mask RF errors to higher layer protocols. In addition, the system includes interference mitigation tools such as software selectable dual polarity antennas, automatic SU power leveling, and threshold control.

Integrated Design

The M900S radios are fully weatherized outdoor units featuring Power-over-Ethernet (PoE) designed for quick deployment and easy installation.

Management Features

The system offers remote and local management via Telnet, SNMP and HTTP via browser. Powerful tools such as site survey and upstream/downstream CIR/MIR controls allow operators total control and flexibility in managing their network.

Specifications

Frequency of Operation	902 MHz to 928 MHz
User Data Throughput	3 Mbps
Receiver Sensitivity (BER 10^-6)	-90 dBm typical
RF Power Output	M900S AP & SU: +26 dBm Max Setting, -4 dBm Min Setting M915S-SU-EXT: +26 dBm Max Setting, 0 dBm Min Setting
LED Indicators	7 LEDs including 4 RSSI
Modulation Format	Direct Sequence Spread Spectrum (DSSS) with RAKE
Access Method	TDD with SMARTPolling™
Maximum SUs per AP	126
Configuration/Management	Telnet, SNMP (via AP), TFTP, HTTP
Internal Antenna	M900S AP & SU: Integrated 10 dBi 60° X 60° patch dual polarized (HPOL/VPOL)
Internal Antenna Polarization	Horizontal / Vertical (Software Switchable)
External Antenna Connection	Reverse Polarity SMA (RP-SMA)
Omni Antenna** (Optional)	8.5 dBi 360° X 10° (VPOL) - Comtelco Part # BS915XL7** (Requires N-SMA RP adapter)
Yagi Antenna** (Optional)	8 dBi 70 ° X 90 ° (VPOL or HPOL) - Trango part # AD900-8Y-RP** (comes with N-SMA RP adapter)
Yagi Antenna** (Optional)	15 dBi 30° X 30° (VPOL or HPOL) - Cushcraft part # PC9013N** (Requires N-SMA RP adapter)
Physical Interfaces	10/100 Ethernet Autosensing, Serial Port (RJ11)
Power Method	Power-over-Ethernet (PoE Injector JBox included)
Voltage Limits	10.5 VDC – 24 VDC
Enclosure Type	M900S AP & SU: All-weather, powder coated, cast aluminum with polycarbonate radome M915S-SU-EXT: All-weather ABS
Temp Range	-40° to 60° C (-40° to 140° F)
Radio Dimensions	M900S AP & SU: 12.5" x 8" x 2.75" M915S-SU-EXT: 15" x 7.4" x 6.1"
Radio Weight	M900S AP & SU: 4 lbs. M915S-SU-EXT: 1.5 lbs.

* Non-line-of-sight range and throughput may vary due to antenna height, leaf density, moisture content, and other environmental factors.

** NOTE: These external antennas require a Reverse Polarity SMA MALE to Standard N MALE-50 OHM RG142B/U Coax Adapter