Item may differ from picture shown

Always Free Shipping
Model: 1200155L1
Manufactured by: ADTRAN
Return for Refund: 15 Days
Return for Replacement: 1 Year
Availability: In Stock
Packaging: Original or White Box


The TDU 120 (T1 Distribution Unit) is an intelligent, full-featured, T1 DSU/CSU in a 1U high 19-inch rackmount enclosure. Designed to interface customers data terminal equipment (DTE) to T1 or Fractional T1 services, the TDU 120 is fully compatible with D4 or ESF framing formats with AMI or B8ZS coding. When in ESF framing mode, the unit satisfies ANSI T1.403 and AT&T 54016 modes for utilization of the facility data link (FDL). It uses option modules identical to those used with other ADTRAN TSU units. A base V.35 and DSX-1 (PBX) interface is provided on the rear of the unit. The V.35 interface can be configured to operate synchronously at Nx56 or Nx64 data rates where N=1 to 24. The channels used can be selected at random. The DSX-1 interface is a short haul T1 interface intended for connection to a PBX, cellular/PCS switch or similar device. The channels used by the DSX-1 port can also be selected at random.

  • Manufactured by: ADTRAN
  • Model/Part : 1200155L1
  • Device Type: DSU/CSU
  • Form Factor: Rack-mountable
  • Connectivity Technology: Wired
  • Line Rate: T-1
  • Data Transfer Rate: 1.544 Mbps
  • Line Coding Format: AMI, B8ZS
  • Framing Format: ANSI T1.403, AT&T 54016, D4, ESF
  • Data Link Protocol: HSSI, serial
  • Status Indicators: Port status, collision status, remote control, test mode
  • Features: Modular design, network monitoring, manageable
  • Compliant Standards: ANSI T1.403, ANSI T1.102
  • Expansion Slots Total (Free): 1 ( 1 ) x expansion slot
  • Interfaces: 1 x serial - V.35 - 34 pin M/34 (V.35) - 1 1 x network - T1-FT1 - RJ-48C - 1 1 x management - RS-232 - RJ-45 - 1 1 x network - DSX-1 - RJ-48C - 1
  • Power Device: Power supply - integrated
  • Voltage Required: 120 V
  • Frequency Required: DC Hz
  • Enclosure Color: White
  • Width: 17 in
  • Depth: 11.6 in
  • Height: 1.7 in
  • Weight: 7.1 lbs

  • Copyright © 2008 Zdtronic.com