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Products Unlicensed Radio Point-to-Point PDH (T1/E1/DS3/E3) Radios 5.8 GHz T1 (1.544 Mbps) LYNX.sc6 (discontinued)

Spread Spectrum T1 Digital Microwave Radios


  • No operating license required (in most countries)          
  • One to eight independent DS-1 (1.544 Mbps) channels          
  • Point-to-point communications from less than 1 mile to more than 50 miles          
  • Wide operational temperature          
  • Built-in loopback, far-end monitoring and orderwire          
  • Open network management           

    One to Eight Channels
    Up to eight independent, non-compressed, full-duplex T1 channels are provided (depending on model). This capability provides an alternative to leased lines or traditional licensed radio for fast and easy connection of T1 capacity requirements.

    Spread spectrum technology allows a license-free approach to accomplish medium-capacity spur connections quickly, without FCC licensing or coordination.

    Built-in orderwire provides an easy means for private telephone connections between radio sites.

    Open network management yields flexibility for operators with central equipment monitoring facilities.

    The one-piece indoor design, loopback functions, flexible power connections and external adjustments result in a system that is easy to install and maintain. Also, wide temperature operation allows users to install in outdoor cabinets or shelters without additional air conditioning or heating. 

    Applications digital microwave radios are easily connected to voice, data or video sources. Outstanding system gain provides wireless point-to-point link distances greater than 50 miles, line-of-sight. Hub and repeater configurations are also easily implemented. 

    Typical applications include cellular/PCS base station interconnect, rural telephone and remote data connections. 

    The Product Line

    The family offers six models for full-duplex T1 (1.544 Mbps) wireless communications: 2.4 GHz T1, 5.8 GHz T1, 2.4 GHz 2 x T1, 5.8 GHz 2 x T1, 5.8 GHz 4 x T1 and 5.8 GHz 8 x T1. The family also offers a similar line of E1 (2.048 Mbps) and fractional capacity (56 to 512 kbps) radios. Each model offers selectable frequency channel plans with excellent adjacent channel performance, resulting in easy installation of repeaters and hubs. In addition, the provides a combination of several exclusive features, yielding increased flexibility and reliability as well as lower cost installation and maintenance.

    Wide Operational Temperature Range 

  • Outdoor cabinet mounting           
  • No external environmental controls required           

    Small Size, One-Piece Construction 

  • Less rack space (2RU rack mount)           
  • Low cost installation and maintenance with no tower mounting           

    Far-End Monitoring 

  • Far-end status and test points at near-end radio front panel           

    Protect Port

  • Can be installed in redundant configurations           

    Multiple Channel Plans 

  • Flexible hub and repeater installations           
  • Provides interference mitigation           

    High System Gain & Forward Error Correction (FEC) 

  • Improved transmitter output power and receiver sensitivity           
  • High reliability links with excellent fade margin           

    Spread Spectrum Technology 

  • No license or frequency coordination required (in most countries)           
  • Fast, inexpensive installation           

    Loopback Functions 

  • Eases installation and BER testing with internal or external test source           
  • One-person installation and testing           

    Wide Input Power Range 

  • Connects to a variety of ±DC sources (e.g. +24 or -48 V) without options           
  • AC adapter available           

    RF Power Control 

  • Easy adjustment for EIRP regulations (where applicable)           
  • Installs with a variety of antennas           

    Two Service Channels 

  • Digital orderwire providing voice communications over radio network           
  • Clear channel for wayside traffic           

    Network Management (OpenLYNX™) 

  • Embedded TBOS agent           
  • Wayside RS-232           
  • Windows 95™ GUI     

    Easy to Install: Small dish or flat panel antennas can be used at both 2.4 and 5.8 GHz, along with low-loss coaxial cable to provide excellent performance for line-of-sight distances from less than 1 mile to more than 50 miles. The installation shown provides a rural telephone T1 extension using a 5.8 GHz 2 foot parabolic dish and 1 /2 inch coaxial cable, mounted on a telephone pole.  

    Hub Site Engineering: Using standard microwave radio path engineering practices, radios can be integrated into hub sites, even in the presence of other spread spectrum and licensed microwave systems. This site illustrates seven radios, all operating in the 5.8 GHz band, located at a hub site that also employs a variety of licensed microwave radios.  

    Cabinet Mounting: The can be mounted in existing equipment cabinets, stand-alone cabinets or any weatherproof enclosure. Occupying only two rack mount units (with no outdoor mounted electronics) plus a -30 to +65 degree Celsius operating temperature range, the reliable is very easy to install and maintain. The is shown mounted in a telephone switch cabinet without air conditioning or heating.  

    Network Management: Utilizing an open architecture protocol, the can be integrated into existing network management systems. OpenLYNX™ gives users a fast and intuitive system for control, diagnostics and troubleshooting of the radio network.  

    Specifications and Ordering Information 


    (BER = 1 X 10-6)

    Model 31250 (2.4 GHz T1)2400 - 2483.5 MHzT1 (1.544 Mbps)-94 dBm124 dB
    Model 31650 (2.4 GHz 2xT1)2400 - 2483.5 MHz2 x T1 (2 x 1.544 Mbps)-91 dBm121 dB
    Model 31000 (5.8 GHz T1)5725 - 5850 MHzT1 (1.544 Mbps)-93 dBm116 dB
    Model 31600 (5.8 GHz 2xT1)5725 - 5850 MHz2 x T1 (2 x 1.544 Mbps)-90 dBm113 dB
    Model 31800 (5.8 GHz 4xT1)5725 - 5850 MHz4 x T1 (4 x 1.544 Mbps)-87 dBm110 dB
    Model 31145-10 (5.8 GHz 8xT1)5725 - 5850 MHz8 x T1 (8 x 1.544 Mbps)-86 dBm109 dB

    Specifications All Models

    Antenna Connector N-type female
    Full Output Power, 2.4 GHz _+27 dBm, +30 dBm maximum
    RF Attenuation Range, 2.4 GHz 16 dB, minimum
    Full Output Power, 5.8 GHz _+20 dBm, +23 dBm typical
    RF Attenuation Range, 5.8 GHz 20 dB, minimum
    Maximum Receive Level 0 dBm, error free; +10 dBm, no damage
    Coding Direct sequence
    Number of Codes 4 (selectable)
    Processing Gain 10 dB, minimum
    Transmission Delay
    (radio only) 250 µs, maximum
    (10 mile path) 300 µs, maximum
    (30 mile path) 400 µs, maximum
    Regulatory Compliance FCC Part 15.247, Class B & IC RSS210/139  

    Digital Line Interface
    Digital Interface DSX-1*
    Connectors DB9, RJ-45 (RJ-48c)
    Bantam Jacks** Tx & Rx monitor
    Line Code B8ZS or AMI, selectable
    Line Build Out 0 to 660 feet, selectable Blue Code AIS (Alarm Indication Signal)
    Far-end Loopback Local or remote control (internal/external signal source)  

    Auxiliary Connections 
       Orderwire Handset 2-wire, RJ-11
    VF Orderwire Bridge 600 ohm balanced, 4-wire, 0 dBm, DB25
    Diagnostics Port RS-232/RS-422 (craft/TBOS), DB9 
    Aux Data Port RS-232/RS-422, (Clear Service Channel) Alarm Port 2 Form C, 6 TTL, DB25
    Protect Port RS-232, RJ-45 
    Test Points output power, near & far-end RSL  

    DC Power ±20 to ±63 Volts, <45 Watts
    Optional AC Adapter 100 - 250 Volts, 50 - 60 Hz
    Power Connector 6-pin barrier strip, plug-in
    Operational Temperature -30 to +65°C
    Humidity 0 to 95% non-condensing
    Altitude 15,000 feet, maximum  

    Size (WxHxD)*** 17.2 x 3.5 x 14.5 inches (2RU)
    Weight 11 pounds  

    *Meets CCITT G.823, AT&T Pub 62411, Bellcore TR-TSY-000499.
    ** Not provided on Model 31800 & 31145.
    ***19-inch EIA rack mount, 2-unit height (mounting brackets supplied).  

    Ordering Information

    31250-xxx 2.4 GHz T1
    31650-xxx 2.4 GHz 2 x T1
    31000-xxx 5.8 GHz T1
    31600-xxx 5.8 GHz 2 x T1
    31800-xxx 5.8 GHz 4 x T1
    31145-10xxx 5.8 GHz 8 x T1
    201-9350 OpenLYNX™ GUI  

    xxxxx-A1x A1 channel
    xxxxx-A2x A2 channel
    xxxxx-B1x B1 channel †
    xxxxx-B2x B2 channel †
    xxxxx-C1x C1 channel ††
    xxxxx-C2x C2 channel ††  

    AC adapter
    xxxxx-xx0 without AC Adapter
    xxxxx-xx1 with AC Adapter  

    Models 31250, 31000, 31600 and 31145 only. ††Model 31000 only.  

    Specifications subject to change without notice.