NGT Split-site by lindash


NGT Split-site

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									                                                                                     H F R A D I O C O M M U N I C A T I O N S

             NGT Split-site
                                      remote control system
                 The Codan NGT Split-site Remote Control System provides various options to
                 ensure clear and reliable communication, for users whose control location is
                 affected by electrical interference and limited by building constraints. These
                 options enable you to split control, transmit and receive functions of an HF radio
                 system into one of three basic configurations:

                 !      NGT remote split-site transmitter and receiver system
                 !      NGT remote transceiver system
                 !      NGT master transmitter, remote receiver system

                 KEY         FEAT URE S

                 Simple to use                         NGT handset or the optional desk       VHF/UHF radio and
                                                       console. These operations include      microwave links
                 The NGT Split-site System
                                                       scanning, receiving and                The system can also operate with
                 configurations comprise a local
                                                       transmitting calls, and changing       a 4-wire interface, which allows
                 master site and one or more
                                                       transceiver settings and personal      analogue VHF/UHF radio or
                 remote slave sites. The master
                                                       addresses.                             microwave links to be used for the
                 site uses a transceiver and split-
                 site interface equipment to                                                  connection between the master
                 control the slave site or sites.      Single leased line                     site and the remote site.
                 Depending upon the                    A single 2-wire leased line can be
                 configuration, a remote slave         used to connect a slave remote         Rugged design
                 sites consist of an 8571 Split-site   site to the master control site. The   All Codan products are designed
                 Remote Interface and either a         8571 Split-site Remote Interface       to withstand the toughest
                 receiver, transmitter or              multiplexes both the audio and         conditions and come with full
                 transceiver.                          control signals for the remote         product support. A three year
                                                       sites using the single connection.     warranty is available with all
                 With suitable antennas and            This technique enables the             Codan manufactured products.
                 power supplies, the system            remote site to be located up to
                 provides all control operations       35 km away from the master
                 seamlessly via the user-friendly      control site.

                                                       A DVA NC E D          F EAT U R E S

                                    antenna            System flexibility                     Wherever permitted, the
                                                                                              Codan Automated Link
                                                       The NGT Split-site Remote
                                                                                              Management (CALM) or
                                 Slave                 Control System can be used with
                                                                                              Automatic Link Establishment
                                Receiver               NGT AR and SR transceivers for
   Backup                                                                                     (ALE) facility is supported.
                                  Site                 voice, fax and data applications.

                                                       With suitable Codan auxiliary          Line equalisation
Master                                                 equipment, this system also            The Codan NGT Split-site System
              Total length
Control                                                supports GPS tracking systems,         compensates for line
              up to 35 km
 Site                               antenna            data communication and                 characteristics. This process is
                                                       radio-telephone interconnect.          virtually automatic allowing a
                                                                                              simple setup.
                                                       The system is enhanced by the
                               Transmitter                                                    IN F OR MATI ON
                                   Site                transceiver’s features such as
                                                       Easitalk, Phone call, smart address    For information on various
                                                       book, emergency selcall, built-in      system capabilities, requirements
                                                       test equipment, and remote             and ordering, please refer to
                                                       diagnostics.                           Codan’s System Solutions sheets.
         H OW          I T   WOR KS

         System configuration                      although a backup transceiver                The system also contains
                                                   facility is available by                     equalisation circuitry to
         A transceiver unit at the master
                                                   reconfiguring other units to                 compensate for the frequency
         site controls the system. Using
                                                   perform a receive and/or transmit            characteristics of the line. Using
         the Split-site interface
                                                   function.                                    this technique, the total length of
         equipment, one or more slave
                                                                                                2-wire cable between the master
         transceiver units at remote sites
                                                   Analogue link                                control site and a slave site can be
         are connected to the master
                                                                                                up to 35 km using 0.64 mm
         control site via a 2-wire leased          The NGT Split-site System relays
                                                                                                diameter copper wire (10 lb line)-
         line or 4-wire interface.                 both audio and control data by
                                                                                                standard grade line for Telstra
                                                   multiplexing the control
         Slave receivers are usually               information with a short burst of
         transceiver units that have their         FSK data onto the audio.
         transmit capability disabled,

         SP E CI FIC AT ION S

                                      For 8571 Split-site Remote Interface
          Line loss                   Each line in a system can be up to 35 km of
                                      0.64 mm PIUT (copper conductor)

                                      The system will operate on standard grade lines
                                      Lines and radio links must be full duplex
          Frequency response          400 Hz – 2.5 kHz ±3 dB
          Noise                       Signal/Noise better than 45 dB (excludes line/
                                      radio link noise)
          Signalling                  1070/1270 Hz FSK (part Bell 103) 500 baud

                                      Revertive by command echo and verification
                                      300 Hz control used with signalling and for PTT
          Power                       11 to 16 V DC (12 V nominal) 200 mA, or
                                      22 to 32 V DC (24 V nominal) 100 mA
          AUSTEL Permit Number        A91/19/0129
          Operating temperature       –30 to +50°C
          Size and weight             250 mm W x 320 mm D x 78 mm H; 2.5 kg

                                                         Equipment descriptions and specifications are subject to change without notice or obligation.
                                                         NGT®, CALM® and Easitalk® are registered trademarks of Codan Limited.

Head Office                     Asia Pacific                      EMEA                                   Americas 12-20149-EN Issue 3: 9/08

Codan Limited                   Codan Limited                     Codan (UK) Ltd                         Codan US, Inc.
ABN 77 007 590 605              81 Graves Street                  Unit C4 Endeavour Place                8430 Kao Circle
81 Graves Street                Newton SA 5074                    Coxbridge Business Park                Manassas VA 20110
Newton SA 5074                  AUSTRALIA                         Farnham Surrey GU10 5EH                USA
AUSTRALIA                                                         UNITED KINGDOM
Telephone +61 8 8305 0311       Telephone +61 8 8305 0311         Telephone +44 1252 717 272             Telephone +1 703 361 2721
Facsimile +61 8 8305 0411       Facsimile +61 8 8305 0411         Facsimile +44 1252 717 337             Facsimile +1 703 361 3812                 

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