Item Information
This unit is in excellent condition. Included is a soft travel case, power adapter, users manual, handset, and various test cables. Passes self tests. Guaranteed against DOA.
Features:
The Tele-Path Model 550B ISDN Portable Test Set is a compact, battery operated device used to conduct testing of ISDN circuits at the customer premise, the input and output of the ISDN repeater housing, or at the main distribution frame. The model 550B is designed for both rugged durability and ease of use with menu driven screens.
The Model 550B's operating modes allow it to function as an NT1 (Network Termination), as TE (Terminal Equipment), as both (NT1/TE), or as LT (Line Termination). It may be connected to either the DSL (Digital Subscriber Loop) U interface, or the S/T interface. It is compatible with AT&T AMI and 2B1Q DSL interfaces, and EBS (P-Phone) and POTS Line Interfaces. The Model 550B allows placement of additional loss on the circuit, either at the "Line" U interface or the "S/T" interface for magin analysis testing.
The Model 550B ISDN Portable Test Set allows you to select a loopback for either of the B channels, or for the full bandwidth (2B+D). The Model 550B also responds to network controlled loopbacks at the NT1.
UPC: 02892913660789
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