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60-Channel Telephone Multiplexer

The TBC-6860U Series 60-Channel Telephone Multiplexer is a long-distance transmission of optical fiber 60-channel telephone fiber transmission equipment. The device uses a VLSI design, the appearance of concise, easy to install and debug, maintenance-free, stable performance and other advantages applicable to major telecommunications operators, military units and enterprises and institutions; equipment configuration flexibility, using 155M bandwidth transmission , You can match 100M line speed Ethernet, V.35 and other interfaces.

Telephone Multiplexer can be directly transmitted through the optical cable to provide 60-channel telephone, networking for point to point, support for FXO, FXS way. Solved the edge customer's phone transmission problem. The device features a dedicated digital multiplexer chip that is powerful enough to almost completely integrate digital logic in the device, significantly improving product performance and reducing costs. The whole machine excellent performance, stable and reliable work, low power consumption, high integration, small size, easy to install and maintain.


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  • Industrial design, SMT process ;

    All digital optical transmission platform, with the platform multi-service flexible configuration;

    Perfect alarm output: can provide real-time business alarm, optical error detection, communication interface self-test instructions;

    High stability: the selection of advanced and reliable electronic components and optical components at home and abroad, in the ambient temperature -20 ℃ ~ +65 ℃, operating humidity 0 ~ 95% (non condensing) of the state of work;

    Easy installation, no configuration required;


  • Optical interfacesingle fiber / dual fiber

    Wavelength

     single mode 1310nm / 1550nm; Multimode 850nm / 1310nm

    Fiber

    multimode, single mode

    Transmit power

    -9dBm / -5dBm

    Transmission length

    multi-mode 2 km; Single mode 40,60,120 km

    Receiver sensitivity

    better than-37dBm (BER <e-11)

    Receive dynamic range

    > 27dB

    Connection method

    FC

    Telephone Interface Board - User and Loop Interface

    Voice Interface

    voice characteristics in line with the "Ministry of Posts and Telecommunications telephone exchange equipment, general technical specifications"

    Impedance

    600Ω

    Insertion loss

    -3 ± 0.75dB

    Frequency characteristics

    300 ~ 3400Hz (-0.6 ~ 3dB)

    Weighing noise

    ≤ 63.7dBmop

    Crosstalk attenuation

    ≥ 65dB

    Subscriber line loop resistance

    less than 3KΩ (including phone)

    Supply voltage

    48V

    Feed current

    20 ~ 50mA

    Ringing

    AC90 plus or minus 15V

    Ethernet interface

    Interface rate

    Support 10/100M adaptive access

    Transmission rate

    Support two method:pure 2M and transparent transmission pure 10M , according to the actual needs of users can choose their own

    Duplex mode

    support half-duplex, full-duplex mode

    Physical interface

    RJ45

    Standard

    In full compliance with IEEE802.3 LAN protocol standards

    2/4 line  audio interface

    Impedance

    200Ω 680Ω || 0.1μF

    Four-wire AD gain

    14dB (adjustable)

    Four-wire DA gain

    -2 dB (adjustable)

    Four-wire AD frequency

     -0.2 - 0.2dB

    Four-wire DA frequency

    -0.2 - 0.2dB

    Second-line AD frequency

    -0.2 - 0.2dB

    Second-line DA frequency

     -0.2 - 0.2dB (adjustable)

    Return loss

    40dB

    Balance

    70dB

    Common mode rejection ratio

    70dB

    Power supply rejection ratio

    30dB

    Free channel noise

    ≥ 65dB

    Ring resistance

    600Ω

    V.24 interface

    Interface Type

    V.24 asynchronous

    Rate

    0 -19.2Kbps

    V.35 interface

    Interface Type

    V.35 Sync

    Rate

    Nx64Kb / s (N = 1-15)

    Clock method

    DCE

    E1 interface

    Standard E1 interface, in line with ITU-T G.703, G.704 Suggest

    Bit rate

    2048Kbps ± 50ppm

    Pattern

    HDB3

    Interface impedance

    75Ω

    Interface Features

    Meet G.703, G.742 and G.823 standards

    Frame structure

    No frame structure

    Power

    220V / -48V optional