NT-300
     
 
A Performance - Proven NT1 for Your ISDN Connection


The NT-300 is your stand-alone ISDN network termination (NT1) unit which provides the 2B1Q basic rate interface needed between the ISDN network line and the subscriber terminal equipment. You get two 64 Kbps B-channels for simultaneous voice/data transmission and one 16 Kbps D-channel for network signal transmission. Ideal for remote branch offices and home offices. The NT-300 unit also features an internal power supply enclosed in a compact and lightweight housing suitable for desktop or wall-mount installation.



  FEATURES
  • Conforms to ANSI and ETSI network and terminal interfaces
  • Compatible with 2B1Q basic rate services and standard ISDN terminals
  • Provides 2B+D ISDN basic rate services
  • Provides point-to-point and point-to-multipoint connections
  • Compact unit with built-in power supply
  • Three LED status indicators
  • 50 Ohm, 100 Ohm, and Un-terminated impedance selectable
  • Provides lightening surge protection for network, terminal interface, and AC power
  SPECIFICATIONS
Network (U-Interface)
  • Line Code
    -- 2B1Q per ETR 080 Annex A
    -- ETSI TS 101 080
  • Transmission Method
    -- 2-Wire Duplex Transmission with Echo Cancellation
  • Data Rate
    -- 160 Kbps (2B1Q)
  • Output Amplitude
    -- 2.5V Per Peak Nominal
  • Connectors
    -- One RJ-45
    -- One 2-Contact Clip Type Terminal
Terminal (S/T-Interface)
  • Line Code
    -- AMI Modified, per ITU I.430
    -- ETS 300 012
  • Transmission Method
    -- 4-Wire Duplex Transmission
  • Channel Structure
    - 2B+D+Synchronization+Service Channel
  • Data Rate
    -- 192 Kbps (2B+D)
  • Output Amplitude
    -- ¡Ó0.75V per Peak Nominal
  • Connectors
    -- Two RJ-45
    -- One Clip-Type
  • Line Configuration
    -- Point-to-point
    -- Point-to-multipoint
Regulatory
  • ETS 300 047
  • EN 60950
  • EN 55022
  • EN 61000
  • K.21
LED Indicators
  • U and S/T Interface Status Lamp
  • AC Power Status Lamp
  • Line Power Status Lamp
Power Adapter
  • AC/DC Adapter
  • Built-in Module
  • Input Voltage
    -- 110Vac/60Hz
    -- 220Vac~240Vac/50Hz
Power Feeding
  • Input Voltage from Switches -- 28Vdc~118Vdc
  • Feeding Power to S/T -- 4.5W, 34Vdc~42Vdc
DIP Switch
  • Termination Resistors -- 100 Ohm / 50 Ohm / Un-terminated
  • Wiring Timing Mode -- Fixed/Adaptive Timing Mode
  • LED Display Function -- Active/Deactive
Environmental Conditions
  • Operating Temperature : -5¢XC~ 45¢XC(23¢XF ~ 113¢XF)
  • Storage Temperature :-40¢XC~ 60¢XC(-40¢XF ~140¢XF)
  • Operating Humidity : Up to 90%, Non-Condensing
  • Storage Humidity : Up to 95%, Non-Condensing
Physical
  • Dimension: 104mm (W) x 159mm (D) x 60mm (H)
 
     
 
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