Verilink AS4000 (34-00244) Product Manual - Manual (Page 13)

Overview
Verilink AS4000 User Manual 1-3
• Generates and stores non-service-affecting T1 and T3 circuit
performance data for circuit analysis and maintenance.
• Generates alarms for fault conditions from incoming
network/equipment signals, and reports the alarms to the
node controller.
• Stores operator-defined configuration settings required for
network and equipment interfaces.
The AS4000 can be a channel bank, an FT3 access multiplexer, or a
multi-trunk T1 access node.
Features
The AS4000 uses a dual bus architecture (twin switched busses)
with built-in diagnostics, redundant System Managers and power
modules, console control, SNMP, Telnet management, user
security, and redundant configuration.
Twin Switch Bus
Architecture
The TDM (Time Division Multiplexing) switch bus accommodates
constant bit rate (CBR) circuit-switched applications such as voice
and video. The TDM switch bus accommodates up to 256 Mbit/s of
bandwidth. The ATM switch bus addresses the packet-oriented or
“bursty” data applications. With one Gbit/s of bandwidth, it is
perfect for high-speed connectionless network services.
Midplane Design The AS4000 employs a midplane design. Each AS4000 has either 4
or 11 slots which can be used for the multiple application modules.
There are associated slots in the rear of the AS4000 shelf for the
electrical interface modules (one for each front application
module).
Built-In
Diagnostics
Diagnostic testing can be performed without the need for special
test equipment. All application modules support built-in BERT (Bit
Error Rate Tester) and loopback tests. Testing is initiated through
the console.
LED Indicators All applications modules have LED indicators that indicate tests, a
loopback in progress, or an error condition exists. Refer to the
individual modules for more information.