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SMR-17VF

SMR-17VF SMR-17VF
Feature: 2 порта с независимыми настройками
Application 1: Для передачи каналов тональной частоты с использованием технологи VoIP

Submodule SMR-17VF is designed to be installed on the MR-17V module-motherboard, a part of the universal multiservice SG-17R platform. The submodule is aimed at setting up voice frequency channels with two- or four-wire termination.

 

Technical characteristics

  • Four-wire termination characteristics
    • Number of voice frequency channels on one submodule: 2
    • Connector type: RJ-11
    • Pins: 3-4 - receive (output), 2-5 - transmit (input)
    • Input and output impedance, Ω: 600
    • Channel input relative level: minus 13 dBr
    • Channel output relative level: plus 4 dBr
    • Channel input relative level in transit mode: plus 4 dBr
    • Channel output relative level in transit mode: minus 4 dBr
  • Two-wire termination characteristics
    • Number of voice frequency channels on one submodule: 2
    • Connector type: RJ-11
    • Pins: 3,4 – receive/transmit
    • Input and output impedance, Ω: 600
    • Channel input relative level: 0 dBr
    • Channel output relative level: minus 7 dBr
    • Channel input relative level in transit mode: minus 3,5 dBr
    • Channel output relative level in transit mode: minus 3,5 dBr
  • System interface parameters
    • Electrical joint type: 40+10 contacts, proprietary
    • Max number of submodules installed on one MR-17V motherboard: 4
  • Operation modes
    • Data multiplexing – TDM: available
    • Data routing: available
    • Max number of submodules installed on one SG-17R* base platform: 16
  • Codecs
    • High quality: G711 (A-law)
    • High speed: G729
    • Full VoIP codec stack support option
  • Other characteristics
    • Size (without lath):
      • Height, mm: 9
      • Width, mm: 32
      • Depth, mm: 98
    • Weight, g: 23
    • Power consumption, W: 1,5
  • Service conditions
    • On the SG-17R tub together with MR-17V module
    • Air temperature: 10 – 40 °С
    • Relative air humidity: up to 85%
    • Air pressure: 84 .. 107 kPa



Description

 Submodule SMR-17VF features 2 VF channels for linking up analog interfaces of long distance channels (four-wire VF channels or two-wire subscriber lines of head-on PBXs and commutators)

Supported modes:
  • Two-wire termination: for open telephony with no transit extenders on the telephone commutator;
  • Two-wire termination, transit: for temporal transit linking of open telephone channels, for terminal link, transit extenders on the telephone commutator provided;
  • Four-wire termination: for multichannel tone telegraph networks, secure telephony, secure data transmission, for transit links, connecting circuit of significant length;
  • Four-wire termination, transit: for permanent transit links.
The mode is chosen by means of web-interface of the SG-17R base platform.
 
Unlike traditional ways of transmission of VF channel, Submodule SMR-17VF transmits data using IP-technology. The equipment transforms analog data into digital and forms packets to be sent over IP-network, which provides the following options, when used within SG-17R base platform:
  • Using existing IP-networks for data transmission;
  • Setting up multipurpose traffic within the chosen data channel;
  • Managing traffic within the chosen transmission channel, both using QoS and dedicating a fixed band for IP-traffic;
  • Transmitting data through heterogeneous media, like optics, EM waves, satellite signals, which require data routing at junctions;
  • Transmitting data over various interfaces (Ethernet, SHDSL, E1, RS232) without additional equipment.
Submodule SMR-17VF may operate installed on the SG-17R base platform, combined with other submodules, namely SMR-17VO (FXO), SMR-17VS (FXS), installed on the same or different MR-17V* module-boards.
 

 

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