Panasonic WJ-AV20 Operating Instructions Manual

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Panasonic WJ-AV20 Operating Instructions Manual Manual pdf 86 page image

86InputInputOutputOutput–InputOutputDirection as seen from AV20 Specifications for Setting Dip SwitchesON654321No.12345Function OFF ONReceive terminating resistance on trans-parent side Not terminated TerminatedTransmit terminating resistance on trans-parent side Not terminated TerminatedSend/receive pin wiring cross SW on trans-parent side Straight CrossoverHost port changeover switchReceive terminating resistance switch onhost sideExclusively forRS-232C Changeover modeNot terminated Terminated6 Transmit terminating resistance switch onhost side Not terminated TerminatedAt the time of purchase, setting ismade at OFF only for No.4 SW.No.12345Signal name NameCD Receiving carrierdetectionRD Receiving dataSD Sensing dataERSGData connector readySignal ground6 DR Data set ready7 RS Request to send8 CS Send enabled9 N.C. Not usedInput Host Port (RS-485/RS-232C)RS–485 RS–232CGND ABAB GNDOUT INHOST PORTHOST PORT1 1 2 3 4 56 7 8 923456 Data PortDATA PORT DATA PORTGND ABAB GND123456GND ABAB GND123456OUT IN OUTINStraight CrossoverON (Lower) after theNo.3 dip switch settingOFF (Upper) after theNo.3 dip switch settingUsage of the RS-485 port and the RS-232C port can differ according to the ON/OFF condition at the dip switch 4 set-ting.ON setting: Using port changeover takes place according to the CD signal of the RS-232C.• Usage enabled on the RS-485 port when CD=OFF (including no connection).• Usage enabled on the RS-232C port when CD=ON.OFF setting: RS-232C only can be used (fixed).NoteThe data port wiring can be changed over between “straight” and“crossover” by making ON/OFF switching at the No.3 dip switch set-ting.ON setting: CROSSOVERTo be set at ON when used for our matrix switcherconnection.OFF setting: STRAIGHTTo be set at OFF when used for our SYSTEM CON-TROLLER connection.NoteNote: Multiple units cannot be connected in a daisychain mode.

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