Table of Contents
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Network Standards
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Telcordia TR-NWT-000397 (1993)
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Telcordia TR-TSY-000821 (1991)
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Telcordia TR-TSY-000829 (1989)
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ANSI T1.1992
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ITU-T Q.920, Q.921
Clocking
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Loop timing derived from Channel 1 of ISDN BRI card or any Compact T1 T1
line
Testing & Diagnostics
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Initiates 2B+D, B1, or B2 loopbacks toward the BRI at the NT1
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Performs self test at power up
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3 DSO mode: supports external loopback testing via EOC messages from the
switch
Product Supports
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TR-821 alarms
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TR-397/TR-829/TR-821 Generic Segmented Performance Monitoring
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TR-829 multi-EOC messages in 3 DS0 and 4:1 TDM modes
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Metallic DC test signature in Line Unit Network Terminal (LUNT) mode
Power
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Maximum power input: 6 W (8 port)
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Solid-state fuseless protection
Compact T1 - Release 6.1
ISDN BRI Card
Technical Specifications
9-5
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