Matrix switcher apparatus.

摘要

Matrix switcher apparatus includes a plurality of switcher units (MSU1 to MSU4) connected in tandem, each switcher unit including a plurality of input terminals (TI1, TI2) and a plurality of output terminals (TO1, TO2). From a plurality of transmission/reception units (TR) each provided in each switcher unit and in a remote controlling unit (RCU1, RCU2) outputting switching data, a first one of the transmission/reception units (TR) set to a master station mode sequentially polls the remaining transmission/reception units (TR) set to a slave station mode to store the switching data outputting from each transmission/reception unit (TR) for collectively transmitting the stored switching data over a serial busline (SB). The remaining transmission/reception units (TR) receive only relevant data from the switching data transmitted over the serial busline (SB) to supply the relevant data to a controlling unit (CNT) controlling the turning on and off of crosspoint switches (X11 to X22) of each switcher unit. <IMAGE>