Verilink APS 2000 T1 Line Protection (880-502411-001) Product Manual - Manual (Page 16)

Overview
1-8 Verilink APS 2000 User Manual
Each CSU can be configured for the desired mode of operation. The
configuration data is stored in each module and can be retrieved or
edited.
Network
Management
The Access System 2000 performs the following network
management-related functions:
Performance Data
Generates and stores T1 circuit performance data. An operator can
retrieve this data for circuit analysis and maintenance.
• Generates non-service-affecting T1 performance data required
by AT&T TR-54016 and ANSI T1M1.3.
• Generates non-service-affecting performance report messages
consistent with ANSI T1.403-1989.
Network Transmission Functions
The CSU performs network transmission functions such as:
• T1 signal framing and encoding
• Line coding conversion
• Network density enforcement
• Performance data processing and storage
• CSU status and alarm reporting
• T1 test signals and loopbacks for circuit diagnostics and
maintenance
Circuit
Maintenance
Access System 2000 equipment provides several built-in features
that make circuit maintenance, diagnostics, and testing possible:
Loopbacks
Four different signal loopbacks are available for rapid T1 circuit
trouble isolation. Each of these loopbacks can be activated or
deactivated by an operator.
Test signals
Each CSU is capable of applying one of four test signals to the
circuit through operator-issued commands.
• Service-affecting diagnostics, testing, and maintenance in
accordance with AT&T Publication 54016.