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Design and implementation of the operation and maintenance software for a new GSM transcoder - page 9 / 26

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© NOKIA9 paavo.markkola@nokia.com18.10.2005

Nokia transcoders (2), TCSM2

TCSM2 consist of four different plug-in units

Transcoder controller plug-in unit (TRCO)

Controls the operation of the transcoder

Transcoder plug-in unit (TR12/16)

Incorporates 12 (ANSI) or 16 (ETSI) on board DSPs

Two plug-in units required per A interface PCM line

Exchange terminals plug-in units (ET2E/A)

Implements two E1 or T1 PCM lines

Power source plug-in unit (PCS1)

All plug-in units except the power source require software

Full rate capacity is 120 (ETSI) or 95 (ANSI) channels

Eight units in can be equipped to a cabinet

Cabinet capacity is 960/768 channels

TCSM2

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