User guide Interfaces136Interface cable (serialinterface)The cables used must be shielded. The cable shield must be con-nected to the connector shield on both ends.It depends on the menu setting whether DTR or RDY is activeat pin 4.Input signalsOutput signalsPC/AT (9-pin) Printer (9-pin)RxD 2 3 TxDTxD 3 2 RxDCTS 8 4 DTR/RDYSG 5 5 SGDSR 6DTR 4PC/AT (25-pin) Printer (9-pin)FG 1 FGTxD 2 2 RxDRxD 3 3 TxDCTS 8 4 DTR/RDYSG 5 5 SGDSR 6DTR 4Signal FunctionCTS Clear to SendDSR Data Set ReadyRxD Receive DataSignal FunctionDTR Data Terminal ReadyRTS Request to SendREADY Ready to receive dataTxD Transmit Data
