21st February 2008 at 09:09
#51078
Pix
Guest
Abdel,
Ok, it must be alcatel name… SUM card is the control board, that is usually linked to the BSC via the Abis interface. It contains the clock of the BTS, etc.
Mazin,
Collocated cells : one cell 900 and one cell 1800, located on the same mast, with antennas pointing in the same directions. It is two cells on one sector.