Stinger® MS+ Getting Started Guide
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Stinger Intended Use
The Stinger unit is a DSL ATM switch that provides DSL connections for individual
users. Users connect to the unit over DSL lines supported by line interface modules
(LIMs) that are installed in the Stinger unit. Every Stinger unit contains a special
control module that controls the operation of the unit. Two control modules can be
installed in a redundant arrangement, with one active and primary, and the other a
spare. The physical interfaces on the unit provide DSL or ATM network connections
to digital lines, and a serial or Ethernet LAN connection for configuration and
administration. Units equipped with revision 2, or later, control modules also provide
interfaces for monitoring the alarm status of other devices, and an optional internal
modem.
User line interfaces
Depending on the LIMs that are installed, users can connect to the Stinger unit over
DSL lines supporting several DSL protocols. LIMs are available to support the
following DSL connections:
■
ADSL Annex A, B, or C
■
ADSL G.lite
■
SHDSL
See the module guide of a specific LIM for an explanation of installation and
configuration options
.
User connection to each LIM is provided through an associated line protection
module (LPM).
Network interfaces
The Stinger unit extracts data from the digital subscriber line and switches it to
remote ATM switches depending on the configuration of virtual circuit and path
information. Stinger modules are available that support ATM connections to ATM
network switches over the following types of digital lines:
