2-4 BOP HIPWR 111315TABLE 2-5. RS232C PORT INPUT/OUTPUT PIN ASSIGNMENTSCONNECTOR PIN SIGNAL NAME FUNCTIONRS 232PORTA1J51 RTS Request To Send (protocol not used)2 RXD Receive Data3 TXD Transmit Data4 LOGIC GND Logic Ground5 LOGIC GND Logic Ground6 CTS Clear To Send (protocol not used)TABLE 2-6. PARALLEL/SERIAL CONTROL OUT PORT PIN ASSIGNMENTSCONNECTOR PIN SIGNAL NAME FUNCTIONPARALLEL/SERIALCONTROL OUTPORT(A2A5J4)1 SGND Local signal ground2 No connection3 S_IN_PARALLEL Relayed signal for daisy chain connection. (See PARALLEL/SERIAL INPORT (A2A5J3) pin 3)4 No connectionTABLE 2-7. PARALLEL/SERIAL CONTROL IN PORT PIN ASSIGNMENTSCONNECTOR PIN SIGNAL NAME FUNCTIONPARALLEL/SERIALCONTROL IN PORT(A2A5J3)1 SGND Local signal ground2 No connection3S_IN_PARALLEL Input for programming output current of a parallel-connected slave. Pro-vided by master unit.Level: –10V to +10V controls the current between –IOnom to +IOnom.4 No connection5 No connection6IOUT_M_UNIT Output for programming slave current when the unit is a parallel-con-nected masterLevel: –10V to +10V programs slave current to –IOnom to +IOnom.7 No connection8S_IN_SERIAL Input for programming output voltage of a series-connected slave. Pro-vided by master unit or from previous slave if multiple slaves connected.Level: –EOnom to +EOnom controls programs output voltage from+EOnom to –EOnom.