Title: +038=360.000-OU045T_03-PCD2.m4160 PLS SBC - Hardware Manual.pdf
Communication interfacesSerial interfaces - Slots A1 and A25.4.4 RS485 with PCD7.F150, Port #1 & Port#2PCD7.F150: Connection for RS485 with electrical isolationThe electrical isolation is achieved with 3 optocouplers and a DC/DC transducer. The data signals are protected against surges by a suppressor diode (10 V). The line termination resistors can be connected/disconnected with a jumper.5PGND PGND50 VDC0Socket A2PCD7.F15012 342 t r o PJ15 6, 3 xOPEN CLOSEDD N G P50 VDC7 8 9PGND PGND50 VDC10SBUSSocket A1PCD7.F150J11112 1314 15161 t r o P, 4 x11, (1) RX - TX12, (2) /RX - /TXBus RS 485RX - TX /RX - /TXD /DOPEN CLOSEDD N G P50 VDC17 1819SGND (galv. sep.) has to be connected with the shield of the cableBlock diagram:OPTO-0601+5VETXDTransmit75176330 OhmRXDReceiveRS 485 Treiber/D150 OhmRTSEND330 OhmSGND+5VDC+5VESGNDPGNDDCSGND