Specifications

Introduction
MP2100M-LS-2 Modules - Installation and Operation Manual 1-17
Module Groups
To allow the utilization of the maximal number of channels that can be carried
in one time slot, the LS-2 modules can be operated in groups. A group is formed
by assigning the desired group ID number to all the LS-2 modules that will be
part of the group (the assignment is performed by means of the system
management). The available range of group numbers is 1 through 12.
A group can consist of:
• One or two /X.50 modules.
• One or two /SDM modules.
• One, two, three or four /X.58 modules.
Each LS-2 module in a group must be assigned a group member number. The
range of available group member numbers is 1 through 4 (the assignment is
performed by means of the system management). The member must be unique
in a given group.
Note
Each LS-2 module installed in a MEGAPLEX enclosure must be assigned a
unique combination of group number and group member number. Therefore, if
each LS-2 module operates alone, assign the slot number as a group number.
The use of this numbering scheme allows the MEGAPLEX to multiplex the
information from LS-2 modules installed in the enclosure in accordance with
the group numbers (irrespective of the physical position of each module), and
insert the multiplexed information of each group into one main link time slot.
Time Slot Routing
Considerations
The time slot assigned to LS-2 modules is assigned on the basis of their group
ID number, i.e., each group occupies one time slot, irrespective of the number of
modules in the group. However, fully-utilized /2TS modules (carrying ten
9.6 kbps channels) require two time slots.
The assigned time slot can be routed to another group of LS-2 modules in the
remote MEGAPLEX unit), or to a high-speed module such as the MTHS-Q.