Verilink AS4000 (34-00244) Product Manual - Manual (Page 16)

Overview
1-6 Verilink AS4000 User Manual
The rear interface card provides the connectors for the various
interfaces (RS-530, T1, XDSL, DS3, etc.). The interface can include
DTE and network connectors.
New interfaces are added to existing AS4000 units by the addition
of a front and rear application module combination. All modules
can be hot-inserted and removed without disrupting the interface
module and associated cabling.
Application modules can have more than one rear interface module
so that different connector schemes can be supported.
Table 1-1
shows the different application modules available for the AS4000.
Table 1-1 AS4000 Application Modules
NOTE: If an application module is not present in the shelf, you can
not access the individual screens associated with it.
System Manager
Module
All of the application modules in an AS4000 system are controlled
by the AS4000 System Manager. The System Manager and
redundant System Manager occupy two half-height card slots.
The System Manager controls the application modules through two
communication buses on the AS4000 midplane. The redundant
System Manager is a standby which automatically assumes control
if the primary manager fails.
The System Manager module includes a microprocessor, non-
volatile FLASH memory for configuration storage, a battery-clock
for maintaining the time and date, two ASCII terminal/modem
ports, and an Ethernet LAN port for Telnet and SNMP management.
The LAN port is presented as an AUI interface. There is also an
optional built-in modem for dial-in access. The System Manager
rear interface supports the following connections:
Module Function
Quad DS-1 Module Four T1 links, a microprocessor, and FLASH memory for program storage.
Quad Port Sync Data
Module
Four QUAD high-speed links, a microprocessor, and FLASH memory for program
storage. The QUAD Port Sync Data Module supports four high-speed
synchronous data ports at rates from 48 kbit/s to 2.048 Mbit/s per port.
DS-3 Module Twenty eight T1 links, a microprocessor, and FLASH memory for program
storage.
OCU-DP Module (Future release)—Four data ports, a microprocessor, and FLASH memory for
program storage. The OCU-DP Module supports data rates of 56/64 kbit/s.
Quad DS-1 with XDSL
Module
(Future release)—Four T1 links, a microprocessor, and FLASH memory for
program storage, the XDSL mini module fits into the rear of the T1 module to
extend the length of the T1 line.
Test Access Module
(TAM)
Four independent testers send DDS Latching Loopback codes and execute test
patterns at 56 and 64 kbit/s.