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transport of 2B+D information. Block error rate performance over the T1 facility is monitored and is available to the network.
The
By automatically determining the version and requesting the necessary time slots for the
Features
ISDN Features:
•Span powers
•Provides for the transport of ISDN Basic Rate 2B+D information over T1 facilities in the
•NULL card not required with
•B1 or B2 loopback addressability at the faceplate for the NT1 and up to six devices in the
•Compatible with MLT 3.0/ISDN per
DDS Features:
•Span powers an IDSL
•Perform bidirectional loopback (loop and network) when commanded into DS0 DP loopback from the network direction only.
•Loopback release in response to TIPs generated from the network direction per TR62310.
•Remap all subsequent DS0 DP loopback codes into respective eoc loopbacks to loopback respective downstream
•Pass OCU loopback code through to loop the IDSL
•Pass CSU loopback code through to loop the CSU/DSU and simultaneously send a remap to the NT1 eoc address.
•Transmit “Mux out of Sync” (MOS) upstream in B1 during DSL loop open, loss of signal, or loss of sync condition.
•Returns Abnormal Station Code (ASC) to the network in B1 during loopback conditions initiated by the IDSL
Common Features:
•ISDN 2B+D interface which meets all Layer 1 requirements as specified in ANSI
•18 kft nominal range on mixed gauge wire (42 dB @ 40 kHz loop loss, 1300 Ω DC resistance design).
•All Layer 1 maintenance functions.
•Performance monitoring of the Layer 1 facility as specified in
•A distinctive metallic DC test signature to identify either Line Unit Loop Termination (LULT) or Line Unit Network Termination (LUNT) mode of operation as specified in
•DS0 logic level transmit and receive data access through the front panel
•Loop, carrier, and synchronization status available at the front panel.
•Compatible with AT&T
•Compliant with
ADTRAN has obtained the necessary licenses that grant the right to develop a
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