Panasonic WJ-SX550A Operating Instructions Manual

Panasonic WJ-SX550A Operating Instructions Manual Manual pdf 9 page image

-6-BASIC OPERATION OF A MATRIX SWITCHERn Crosspoint SwitchesSW11 SW21 SW31 SW41SW12 SW22 SW32 SW42SW13 SW23 SW33 SW43SW14 SW24 SW34 SW44SW15 SW25 SW35 SW45SW16 SW26 SW36 SW46SW17 SW27 SW37 SW47SW18 SW28 SW38 SW48All Matrix Switchers, no matter how complicated and sophisticated they may be, depend on crosspoint switches to perform thebasic operations of the switcher. The crosspoint switches form a rectangular array of rows and columns in which any row may beconnected to any column.In the Matrix Switcher shown above, the rows are connected to video cameras and the columns are connected to video monitors.By closing a certain crosspoint switch we may connect any camera to any monitor.In the example above, by closing switch SW12, camera 2 is displayed on monitor 1. Likewise, by closing SW24, camera 4 is dis-played on monitor 2. In this example, camera 4 and monitor 3 are also connected, as well as camera 8 and monitor 4.n Spot and SequenceTwo basic operations of the Matrix Switcher are the SPOTand SEQUENCE functions. In the SPOT mode a specificcamera is continuously connected to a specific monitorwith no interruption. In the SEQUENCE mode a series ofcameras are displayed in succession on a monitor. IfSW12, SW14 and SW16, of the crosspoint switch arrayshown in the previous example, are each closed in asequential manner for two seconds, monitor 1 will displaycamera images as shown on the right. The duration of an camera image in a sequence iscalled DWELL TIME.A sequence pattern which repeats itself continuously, suchas the one shown above, can be stored in the memorysection of the Matrix Switcher.Monitor 1Dwell time: 2 sec.Monitor 1 Monitor 2 Monitor 3 Monitor 4Monitor 1Dwell time: 2 sec.Monitor 1Dwell time: 2 sec.s ssCamera 1Camera 2Camera 3Camera 4Camera 5Camera 6Camera 7Camera 81