Table of Contents
Advertisement
6802800U74-AN
Chapter 1: MTS Overview
### Starting Tetra Application ###
### Press Enter ###
username: Downloading configuration file (brc01.cf.2)... SUCCESS
NOTICE: BR Application is started, BR offers call services now, you can log in.
username: ***
password: ***
*** You are now logged in with Factory access ***
BR)
1.2
MTS Platform Description
The MTS provides the interface between the mobile stations within the DIMETRA system and the rest
of the system infrastructure. The MTS performs the following functions:
•
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
•
Switching functions between multiple base transceivers (radio carriers)
•
Air Interface Encryption
•
Local Site Trunking
•
Operation, maintenance, and administration agent
There are three different versions of MTS:
•
MTS LiTE – available in 400 MHz and 800 MHz versions.
•
MTS 2 – available in 260 MHz, 400 MHz, 800 MHz and 900 MHz versions.
•
MTS 4 – available in 260 MHz, 400 MHz, and 800 MHz versions.
MTS LiTE is the smallest of the three versions and supports one Base Radio. MTS 2 is the middle size
version of the MTSs and supports from one to two Base Radios. MTS 4 is the largest of the three
versions and supports from one to four Base Radios. The MTS 4 Expansion cabinet supports up to 4
additional Base Radios.
You build up MTS LiTE, MTS 2, and MTS 4 inside cabinets. The MTS cabinets contain card cages.
The same card cage is used in MTS 2 and MTS 4 while a separate card cage type is used in MTS
LiTE, which in turn house different configurations of modules, for example, Power Supply Units, Base
Radios, and Site Controllers. These modules provide the MTSs functionality. The configuration and
number of modules determine the MTSs functionality and capacity.
The three versions of MTS are, in general, 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.
The system infrastructures Network Management (NM) applications mange the MTSs. Communication
between the MTSs and the NM applications takes place through E1 , X.21, or Ethernet link. Through
this link, the NM applications can download new configuration files to the MTSs and receive alarm,
event and performance statistics from them.
46
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
