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AtlasPhones has maintained our status as the customer service leader in the Business Telecom Industry since 1998 - 5-Star Rated by Yahoo! Shopping Network - Same Day Shipping - Ultra Competitive Prices - AtlasPhones Warranty - Secure Online Ordering - Free Technical Support - Huge Inventory - Free Ground Shipping* In Continental U.S.A. - "The Trusted Source" TN556D ISDN-BRI 4-Wire S/T-NT Interface (12-Ports)
TN556D ISDN-BRI 4-Wire S/T-NT Interface (12-Ports)
Features:
- Provides 12-Ports connecting to ISDN-BRI terminals
- Each port has TXT, TXR, PXT, and PXR signal leads
- Up to 8 ports can be used for adjunct switch application interface (ASAI) links
- Each port operates at 192 kbps per second and has 2 B-channels and 1 D-channel
- Requires a packet control circuit pack (TN778) when used in R6si systems or packet bus-equipped R6vs systems
- Range of up to 3300 ft. maximum from the system to the voice terminal
- Can connect 24 terminals where each terminal uses 1 B-channel and shares the D-channel
- Compatible with Definity R7 or later
- One Year Warranty
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