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Fractional T1 (DS1) to V.35 / RS-449 / X.21 or RS-530 access unit
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Fractional T1 (DS1) to V.35 / RS-449 / X.21 or RS-530 access unit

CTC Union Part No.: G703FT1

  • $ 320.00 or

The G703FT1 access unit allows serial data ports to connect to fractional T1 (DS1) interfaces. Most common data ports are V.35 and X.21 (RS-530 is default, no cables needed) and there are also cables available on demand for RS-449. Data port rates are selectable via DIP switches in multiples of 56 or 64Kbps, up to 1.544Mbps data rate. Any time slot can be configured for usage via same DIP switch settings. T1 link can be clocked from recovered LBT clock, data port sync clock or internal oscillator.
Features of G703FT1 access unit
  • Terminates T1/fractional T1 service
  • Clock regeneration from AMI or B8ZS data
  • Data rate fully selectable from DIP switches (n X 64Kbps)
  • Diagnostic Loopback for T1 and Data Port sides
  • Fully transparent in unframed mode (1544Kbps)
  • LTU (Line Terminating Unit) built in
  • DTE/DCE switchable Data Port
Technical specifications
  • Connectors: DB25 RS-530 female connector with special wiring for V.35/X.21 and RS-449 data cables
  • and T1 RJ48c 100ohm connector for T1 access
  • Framing: D4 or ESF selectable
  • Data rate: n X 64Kbps (n=1~24)
  • LEDs: DTE/ DCE/ TD/ RD/ Test/ ALARM/ T-CLK Loss/ R-Clk Loss
  • Power: External 9V DC(AC 100-240V adapter included in box)
  • Temperature: 0-50§C (Operating), 0 - 70§C (Storage)
  • Humidity: 5%-90% non-condensing
  • Dimensions: 99mm x 170mm x 30mm
  • Weight: 360g
  • Compliance: ANSI T1.403, ITU-T G.703, G.704, G.706, G.824

Product Sheet:



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