Black Box COMPACT T1 MT850A - Manual (Page 409)

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