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Buy Online NowDirect from Trango Volume Pricing
DocumentsApplicationsThe M900S™ 900 MHz Wireless Broadband System is ideal in the following scenarios:
SMARTPolling™SMARTPolling™ (U.S. patent 7,127,255) is a unique and powerful prioritization scheme designed to ensure the highest quality of service, such as VoIP, to each user at the maximum assigned throughput. The AP will poll each SU in a round-robin fashion, favoring subscribers which are busy passing traffic. For this reason the SMARTPolling™ protocol is adaptive and dynamic as opposed to straight Time Division Duplex (TDD). Added control of the polling sequence is provided by the ability for network operators to specify certain subscribers as PRIORITY in which case these subscribers will be polled more frequently thus guaranteeing even lower latency for critical clients. What's Included
** EXT model includes only a connector for an external antenna and does not include an integrated antenna The M900S Series point-to-multipoint broadband wireless access (BWA) 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. Highlights900 MHz Non-Line-of-Sight PerformanceThe 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 Trango's state-of-the-art SMARTPolling™ with Spread Spectrum modulation results in maximum cell performance. 
Antenna FlexibilityThe 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 M915S2-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. SpeedThe system delivers up to 3 Mbps and utilizes Trango's patented SMARTPolling™ algorithm (U.S. patent 7,127,255) to dynamically and adaptively poll subscriber units, ensuring the lowest latency for active subscribers. Channel FlexibilityThe 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 MitigationThe 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 DesignThe M900S radios are fully weatherized outdoor units featuring Power-over-Ethernet (PoE) designed for quick deployment and easy installation. Management FeaturesThe 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
* 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 |
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