111 WJ-SX550B Matrix Switcher Control Connections(1) Connect the MONITOR OUT connectors on the rear of the WJ-SX550B to the VIDEO IN connectors 1 to 4 on the rear of theWJ-NT204.(2) Connect the RS-232C ports (of WJ-SX550B and WJ-NT204) with a RS-232C cable. You can also connect the CONTROLDATA port on the rear of the WJ-SX550B to the RS-485 connectors on the rear of the WJ-NT204.• Random Input Selection Mode• Unless a user changes channels, the last selected channel is used to continue transmission. SetupMake the CONTROL SETUP as follows.CAM CONTROL: OTHERSAUX SYSTEM: SX550A/BIn the SERIAL PORT SETUP window, set TYPE under RS-232C SETUP or RS-485 SETUP to WJ-SX550B. Set the same com-munication parameters as for the Matrix Switcher. (For further details refer to the operation manual of the WJ-SX550B MatrixSwitcher.) Click the link to [MATRIX SW CONFIGURATION page] at the bottom of the SERIAL PORT SETUP window to openthe MATRIX SWITCHER CONFIGURATION window.O P E R A T EMatrix Switcher WJ-SX 5505501111PCPCPCPCWJ-NT204WJ-SX550BMON1 MON2MON1 MON2MON1 MON2MON1 MON2MonitorOut 1MonitorOut 2MonitorOut 3MonitorOut 4LINK/10BASE-T 100BASE-TX CONNECT ACTLOW HIGHRING.VOLNetwork Interface Unit WJ-NTPOWERONOFFRS-232CDB25 DB98 ...................... 13 ...................... 22 ...................... 320 .................... 47 ...................... 56 ...................... 64 ...................... 75 ...................... 822 .................... 9Data Port (WJ-SX550B)Pin No. Designation1 Ground2 R(B)3 R(A)4 T(B)5 T(A)6 GroundRS-485R(B) ............ T(B)R(A) ............ T(A)T(B) ............ R(B)T(A) ............ R(A)qwNote: Set DIP switch #3 on the rear of WJ-NT204 to ONonly when using RS-485 port.