Karel DS200, Technical Reference And Installation Manual

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VI.3. DS200L
The main TDM switching matrix of the DS200L system is the DCC block. The switching
between the towers is handled by the DCC block. However, the UTIL200 card used in DS200
systems, is also used in each rack of DS200L systems to handle the switching within the
tower. Additionally, the module, which is named the Utility 4E1 card is mounted on the
UTIL200 card to provide the communication between the towers and the DCC block.
For the IP switching an Ethernet switch is used.
VI.3.A. THE DCC (DIGITAL CROSS CONNECT)
BLOCK
The DCC Block is the switching matrix that fulfills the main switching function for the
exchange.
DCC block has a structure that includes the main switching controller card ( DCC Utility ), 14
of 8E1 Interface card slots and a power regulation card ( DCC Power In ). Due to its standard
19” structure, it is placed in the same 19” cabinet with the main processor block PCU200.
A DCC block consists of the units below:
•
DCC Chassis
•
DCC Backplane
•
DCC Utility Card
•
DCC 8E1 Interface Card
•
DCC Power In Card
SLOT NO:
13 12 11 10 9 8 7 CP2 CP1 6 5 4 3 2 1 0