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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.


            • Features
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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


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