Specifications

MP2100M-LS-2 Modules - Installation and Operation Manual 1-1
Chapter 1.
Introduction
1.1 Functional Description
General
This manual describes the technical characteristics, applications, installation,
and operation of the LS-2 family of low-speed data sub-multiplexer modules for
the MEGAPLEX-2100 Modular T1/E1 Multiplexer Systems.
The LS-2 modules use byte-interleaved time division multiplexing to allow the
transmission of large numbers of low-speed synchronous and asynchronous
channels, at rates of 2.4, 4.8, 9.6, and 19.2 kbps, within one or two main link
time slots (64 kbps each). Modules with built-in modems, which enable direct
connection to remote data equipment connected through modems, are also
available.
The LS-2 modules are available in two physical sizes:
• 4U-high modules, designated LS-2, LS-2/M, LS-2A, and LS-2A/2TS, are
used in MEGAPLEX-2100/2104 chassis types. The user interface
connectors of these modules are located on the module panels.
• 6U-high modules, designated MTLS-2 and MTLS-2/2TS, are used in the
MEGAPLEX-2100B and MEGAPLEX-2100F chassis types. These
modules are interoperable with the corresponding 4U I/O modules.
The 6U modules do not include user interface connectors: instead, these
connectors are located on interface modules. The interface modules
intended for use in the MEGAPLEX-2100F chassis are designated
IM-S68/2, and the interface modules intended for use in the
MEGAPLEX-2100B chassis are designated IMB-S68/2.
To enable the user to use optimally the available payload capacity, all the LS-2
modules offer both automatic and manual envelope assignment.
Note
In this manual, the generic term LS-2 is used when the information is
applicable to all of the module versions, and the term MEGAPLEX is used
when the information is applicable to all of the multiplexer versions. The
complete designation is used only for information applicable to a specific
version.