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<h1>TRU Manager</h1>

<p>Nokia Talk-family and Nokia PrimeSite BTSs include a transmission
unit called TRUx. This unit handles the PCM Abis interface. It comprises of
3 pcs 2 Mbit/s interfaces as well as 2 Mbit and 8 kbit cross connection fields.</p>


<p>The timeslot allocations of the 2 Mbit/s interfaces and
the configuration on cross connection fields have to be defined before the
BTS can establish an Abis connection to the BSC. The standard way to do this
definition is by using a separate Service Terminal or Macro Service Terminal
Emulator.</p>


<p>The TRU manager is a Windows based software, which makes
it possible to do the above mentioned transmission unit configurations in
a user-friendly way. The TRU manager is connected to the TRU card’s connector
in the BTS.</p>
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