The M900S™ series point-to-multipoint wireless broadband platform utilizes
the benefits of the 900 MHz license-exempt spectrum and delivers up to 3
Mbps to the subscriber. Ideal for areas with foliage, the M900S is a fully
integrated outdoor unit which includes an internal dual polarized antenna
as well as a connector for an optional external antenna.
Highlights
900 MHz Non-Line-of-Sight Performance
The M900S was designed for deployment in areas where foliage obscures 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. Use of external antennas increases range and fade margin
even further. In addition, Spread Spectrum modulation promotes resistance to multipath fading.
Antenna Flexibility
The M900S AP and SU both include an integrated 10 dBi dual polarized patch antenna as well as a connector for an
optional external antenna. External antenna options include a 8.5 dBi omni antenna for the AP and a 15 dBi yagi
for both the AP and SU. The M900S SU auto-sensing feature allows the firmware to choose the antenna with the
strongest signal, or the user can manually select the internal or external antenna.
Speed
The M900S delivers up to 3 Mbps and utilizes Trango's patent pending SmartPolling™ algorithm to dynamically and
adaptively poll subscriber units, ensuring the lowest latency for active subscribers.
Image Channel Flexibility
The M900S 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 offers powerful resistance to interference with the Automatic Repeat Request (ARQ) feature which automatically
re-transmits errored packets to mask RF errors to higher layer protocols. In addition, the M900S provides mitigation tools
such as 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
he M900S 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.
* Non-line-of-sight performance may vary due to leaf density, moisture content, and other
environmental factors.
Specifications
Frequency of Operation
902 MHz to 928 MHz
User Data Throughput
3 Mbps
Receiver Sensitivity (BER 10-6)
-88 dBm / 3 Mbps
RF Power Output
+26 dBm Max / -4 dBm Min
Antenna Polarization
Horizontal / Vertical (Software Switchable)
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
Integrated 10 dBi dual polarized, 60° beamwidth
Optional Antennas
8.5 dBi omni / 15 dBi yagi
Physical Interfaces
10/100 Ethernet Autosensing, Serial Port (RJ11)
Power Method
PoE
Voltage Limits
10.5 VDC - 24 VDC
Enclosure Type
All-weather, powder coated, cast aluminum with polycarbonate radome
