Compact T1 - Release 6.1 9-5
ISDN BRI Card
Technical Specifications
Network Standards
lTelcordia TR-NWT-000397 (1993)
lTelcordia TR-TSY-000821 (1991)
lTelcordia TR-TSY-000829 (1989)
lANSI T1.1992
lITU-T Q.920, Q.921
Clocking
lLoop timing derived from Channel 1 of ISDN BRI card or any Compact T1 T1
line
Testing & Diagnostics
lInitiates 2B+D, B1, or B2 loopbacks toward th e BRI at the NT1
lPerforms self test at power up
l3 DSO mode: supports external loopback testing via EOC messages from the
switch
Product Supports
lTR-821 alarms
lTR-397/TR-829/TR-821 Generic Segmented Performance Monitoring
lTR-829 multi-EOC messages in 3 DS0 and 4:1 TDM modes
lMetallic DC test signature in Line Unit Network T erminal (LUNT) mode
Power
lMaximum power input: 6 W (8 port)
lSolid-state fuseless protection