Operation of several SX2 cards in one computer
It is possible to operate several ISDN cards in one computer. On performance grounds, we recommend operating a maximum of 76 ISDN channels from one computer. Combinations of different SX2 cards are also possible; a maximum of four logical cards, for example:
four SX2 QuadBRI
two SX2 DualPRI (one SX2 DualPRI is equivalent to two "logical" cards)
two SX2 SinglePRI and two SX2 QuadBRI
one SX2 DualPRI and two SX2 QuadBRI