Westek 440A ISDN Terminating Resistor Filter Adapter

(Model # TC-ISDN)
Westek 440A ISDN Terminating Resistor Filter Adapter

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440A4 ISDN Terminating Resistor Filter Adapter is used to balance the cable plant between the receiver and transmitter on the Integrated Services Digital Network (ISDN) T-interface.
Filter Adapter Features:
  • Provides the standard 100 ohm circuit termination used on ISDN Basic Rate Interface (BRI) circuits
  • For placement in the communication closet or in the work area
  • The 440A4 consists of a 1 foot (305mm) section of a 4-pair cable connected to one end of a flame-retardant plastic housing
  • The cord is attached to the housing with the release tab of the plug cut flush to the jack
  • Removal can be accomplished with the use of a small tool such as a screwdriver
  • The opposite opening of the housing is equipped with an 8 position modular jack