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ACCESSNET®-T IP DIB-500 R4.1

The indoor base station for professional TETRA communication.

    Product description

    In a radio system, the base station is responsible for radio coverage of a particular district; it forms the air interface for ensuring wireless communication between subscribers.The DIB‑500 R4.1 is a TETRA base station for the TETRA radio system ACCESSNET-T IP. The air interface of the DIB‑500 R4.1 is implemented according to specification EN 300 392-2 (TETRA Voice plus Data (V+D) Part 2: Air Interface AI) in complete conformity with . DIB‑500 R4.1 can be connected in various ways – with and without redundancy – to one or more switching nodes.

    Flexible & reduced operating costs

    Outstanding modularity, compactness and energy efficiency and minimal site requirements and minimized operating costs for the operator.

    Full control via the NMS

    Complete remote monitoring of the modules and components as well as display in the higher-level network management system. Convenient site monitoring and monitoring of external components via the network management system.

    High transmitting power

    Output rating on the transmission output of the transceiver module up to 50 W (TETRA modulated), outstanding receiver sensitivity

    Reliable

    Reliable network coverage and safe availability via seamless integration in the scalable redundancy concept of the ACCESSNET-T IP.

    Up to 8 carriers

    Tailored scalability of the base station from one up to eight carriers.

    Alarms

    The base station has configurable alarm inputs and alarm outputs for external alarms.

    Antennas

    Support for a number of antenna configurations. Configurations available with leaky feeder cable for in-house, tunnel and indoor radio coverage.

    Features

    Technical data

    Radio characteristics

    Frequency ranges

    Rx/Tx: 380 MHz to 486 MHz
    RX: 806 MHz to 876 MHz
    TX: 851 MHz to 921 MHz
    (others on request)

    Static receiver sensitivity (4 % BER at TCH7.2)

    -119 dBm

    Sensitivity behind the antenna coupling network without multipath reception

    Dynamic receiver sensitivity (4 % BER at TCH7.2 with TU50)

    -113 dBm

    Sensitivity behind the antenna coupling network without multipath reception

    Dynamic receiver sensitivity (in accordance with EN 300 392-2, class A)

    -108 dBm

    Sensitivity behind the antenna coupling network without multipath reception

    Dynamic receiver sensitivity (in accordance with EN 300 392-2, class B)

    -110 dBm

    Sensitivity behind the antenna coupling network without multipath reception

    Output rating transmitter output

    50 W

    Maximum HF output rating (behind the antenna coupling network, with two duplexers)

    25 W

    Multi-channel reception (diversity)

    2-fold

    Operating mode

    Duplex

    Antenna configuration

    RX/TX
    RX/TX + RX
    2 × RX/TX (high-performance version)

    Antenna coupling network

    Hybrid combiner
    Cavity-Combiner (with additional components)
    high-performance version with 2 duplexers

    Maximum number of TETRA carriers
    Maximum number of communication channels

    Environmental conditions (according to EN 300 019-1-3, class 3.1)

    Operating temperature range

    +5 °C to +45 °C

    Storage temperature range

    -40 °C to +70 °C

    Relative humidity

    5 % to 85 % (non-condensing)

    Cooling

    Integrated active fan units

    Degree of protection

    IP20

    General data

    Power supply

    48 VDC (nominal)
    110 VAC (optional)
    230 VAC (optional)

    Power loss

    550 W (2 carriers)
    1100 W (4 carriers)

    Dimensions (L × W × H, in the case of four TETRA carriers)

    600 mm × 910 mm × 600 mm, 18 rack units

    Weight (in the case of four TETRA carriers)

    max. 100 kg

    Additional properties

    Local and remote access

    Configuration of the base station
    Software upgrade
    of the internal and external alarms
    Network management access

    Internal redundancy of the base station

    Complete relapse mode in the event of a failure of the communication network

    Synchronization

    GPS

    Additional components

    Uninterruptible power supply (UPS)
    AC-power supply
    Additional remote monitoring system

    Features marked with * are available in future versions of the product.

    All technical data were tested according to the respective standards. Due to continuing development, technical changes are reserved.

    Scope of delivery

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