TEO Tone Commander NT1B-300TC Refurbished


Availability: In stock

SKU: NT1B-300TC-R Category: Product Condition: Refurbished


The Tone Commander NT1B-300TC converts an ANSI standard 2B1Q ISDN U-interface from the telco Central Office to an S/T interface to connect to local customer terminal equipment. Both point-to-point and multipoint ISDN terminal equipment configurations are supported.

The NT1B-300TC complies with ANSI T1.601-1992 and T1.605-1991 interface standards, including MLT (Mechanized Loop Testing) requirements, and is compatible with National-1 and National-2 ISDN standards. In addition, it may be used as a drop-in replacement in Lucent NT1B-300 applications.

  • 2–S/T ports

  • 2 status lights
  • 50/100 ohm
  • .95 watt



  • Tone Commander NT1B-300 Rack
  • Lucent NT1B-310 Rack
  • SEI PowerRack 300.







Weight 4.00 lbs
Shopping Cart
Scroll to Top