Digital CDMA-1xRTT Cellular Modem

CDMA-1xRTT digital RS232 Cell Modem - the 1xRTT mode is used for packet-data communication - the IS-95 circuit-switched data mode enables it to be used as if it were a standard land-line (POTS) modem

The host-end system simply uses a normal modem to dial a standard 10-digit telephone number that is assigned to the StarPoint by the cellular carrier. The endpoint device connected to the StarPoint may also initiate a communications session using the normal AT dial commands that are used with a land-line modem.

StarPoint CDMA-1xRTT Cellular Modem module is a member of the StarPoint modem family. Modems in this series are used extensively in industrial machine-to-machine (M2M), telemetry, applications. StarPoint communications modules are designed for operation in the rugged environments that are found in many remote telemetry endpoint installations. The cellular modems in the StarPoint family are particularly useful with mobile/transportable devices, remote devices that are not easily reached with a land line, or locations that require service on short notice. Cellular service is frequently the most economical communications alternative.

Features:

• Dual band, 800 MHz and 1900 MHz CDMA operation

• IS-95 circuit-switched data and CDMA2000 (1xRTT) packet data

• User data port configurable as RS-232 or RS-485

• Extended AT-compatible command set

• Extensive local and remote diagnostics

• Locally or remotely configurable

• "Go, No-Go" LED signal strength indicator

• Automatic dial-out based on contact closure, or open, alarm input

• Extended operating temperature range from –20° C to +70° C

• Industrial quality and reliability

• SMS capable with firmware upgrade

• Optional NEMA 4X weather tight enclosure with wide-range AC or DC power supply and internal antenna, with external antenna options

 

Applications:

• AMR (Automatic Meter Reading)

• POS/ATM (Point of Sale & Automated Teller Machines)

• Oil well, gas well, pumping station and compressor station monitoring and control

• Security system monitoring and diagnostics

• Vehicle location, monitoring and diagnostics

• Tank level and other asset management

• Any data collection, telemetry or remote device control applications such as weather station data collection, instrumentation data gathering, SCADA, etc.

Installation

It has an SMA Female antenna connector for connecting to a spike antenna or a number of other antenna options. Where signal strength or other considerations require, an elevated feed or yagi antenna may be used.

The StarPoint requires relatively clean 12 volt DC power. Optional power supplies are available.

The StarPoint user data port has an 8-pin industrial connector. That connector may be configured as either RS-232 or RS-485. Using an adapter cable, a PC may be used to configure and test the StarPoint using its enhanced AT-command set.

Enclosures

The optional NEMA 4X enclosure provides a weather tight environment for outdoor installations. It includes a 100 to 277 volt AC power supply and internal antenna.

Operation

StarPoint’s IS-95 circuit-switched data mode enables it to be used as if it were a standard land-line (POTS) modem. The host-end system simply uses a normal modem to dial a standard 10-digit telephone number that is assigned to the StarPoint by the cellular carrier. The endpoint device connected to the StarPoint may also initiate a communications session using the normal AT dial commands that are used with a land-line modem.

The 1xRTT mode is used for packet-data communication. Both host-to-endpoint and endpoint-to-host originated communication sessions are supported.

Data Rates

In switched-circuit operation, the CDMA network typically supports speeds of from 300 bps through 9,600 bps. In 1xRTT mode, the network can support higher speeds depending on the particular cellular network and its configuration.

The StarPoint data port interface can be configured for speeds from 1,200 bps through 57.6 kbps.

Reliability

StarPoint modules are robust and are designed for years of trouble free operation in rugged environments. StarPoint  products are used by industrial customers that demand maximum reliability.

General Specifications

Input Power

• 12 volt DC ± 10%, 450 mA (maximum)

• Optional 110 volt AC power module is available

• Optional 100 to 277 volt AC power supply is available Environmental

• Operating temperature: -20° C to +70° C

• Humidity: 90% non-condensing Connectors

• Data: 8-pin industrial barrier block

• Power: 3-pin industrial barrier block

• Antenna: SMA-Female (50 ohm) Display

• 10-segment multifunction LED indicator Physical

• Size: Length 5.7 inches with mounting tabs

  • Width 3.7 inches

  • Height 1.4 inches

  •  Weight: 6.8 ounces

    • Approvals

    • FCC Part 15, Class A

    • FCC Part 22 and 24

     

    part #

    MD160001, StarPoint, CDMA cellular modem
    EA300508, StarPoint CDMA w/docking enclosure 

    jump to Cell modem terms Glossary

        Jump to Cellular Digital coverage map

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      Jump to AMPS and Digital  coverage map

       Jump to PDF file on 3G 

       Jump to 2G-3G Cellular Wireless 
                 data transport terminology

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    Here are some links of interest:

    The CDMA Development Group
    (The Industry body for CDMA)

    An Overview of CDMA Evolution toward Wideband CDMA


    (Derived from the data in the FCC Geographic Licensing Resource, provides a very convenient web-based interface to access that data.)



    Wireless PCS Antenna and Tower Sitings
    a bit dated now, but very interesting discussion of cell issues)

    CDMA Online (contains an enormous amount of information about how CDMA works)

    see other other Digital Data Modems

    call 301-924-7400 EXT 25
     or e-mail sales
    sales@data-connect.com

    ARC ELECTRONICS
    a DCE Company

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