Motorola DIMETRA MTS 2, Installation, Configuration And Basic Service Manual

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MTS Platform Chapter 1: MTS Overview
MTS Platform
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The MTS provides the interface between the mobile stations within the Dimetra IP system and
the rest of the system infrastructure. The main functions of the MTS are:
•
Radio link formatting, coding, timing, framing, and error control
•
Timing control supervision to mobile stations (Timing Advance)
•
Radio link quality measurements (Signal Quality Estimate)
•
Site to site frame synchronization
•
Interface translation - radio link to network equipment
•
Switching functions between multiple base transceivers (radio carriers)
•
Air Interface Encryption
•
Local Site Trunking
•
Operation, maintenance, and administration agent
There are two different versions of MTS:
•
MTS 2
•
MTS 4
MTS 2 is the smaller of the two versions and supports one to two Base Radios. MTS 4 is the larger of the
two versions, and with the expansion cabinet installed, it supports one to eight Base Radios.
MTS 2 and MTS 4 are built up inside cabinets. The MTS cabinets comprise card cages (the same card
cage is used in both MTS 2 and MTS 4), which in turn house different con
fi
gurations of modules, for
example, Power Supply Units, Base Radios, and Site Controllers. These modules provide the MTS's
functionality. Different con
fi
gurations and number of modules determine the MTS's functionality and
capacity. Each of these modules is described in more detail in this manual.
The MTSs are managed by the system infrastructure's Network Management (NM) applications.
Communication between the MTSs and the NM applications takes place through an X.21 or E1
link. Through this link, the NM applications can download new con
fi
guration
fi
les to the MTSs
and receive alarm/event and performance statistics from them.
For information regarding network management con
fi
guration of the MTS, please refer to the MTS
Site Object sections of the Zone Con
fi
guration Manager manual and Online Help.
The two versions of MTS are, in general, very similar in terms of functionality and the
modules that they are comprised of. However, there are a number of important differences
between them, which are highlighted in appropriate sections of this document.
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6802800U74-N September 2009