Interfaces User guide126Serial interface RS232C Your printer’s serial interface supports the RS232C specification. Thesignals are received and transmitted by a 9 pin connector.Use a serial interface cable that meets the requirements of your host PC.Connector assignmentTransmission length: max. 15 mType RS232C interfaceSynchronization AsynchronousTransmission rate 300 Baud to 38.400 BaudSignal status OFF (log.1)–3 V to –15 VON (log. 0)+3 V to +15 VConnection cable up to 15 m lengthInterface connections ITT Cannon connector,series DB-9 STransmission protocol XON/XOFF, READY/BUSYCapacity of data buffer 32 KB max.Pin Signal Signal from Ready/Busy XON/XOFF1 CD — — —2 TXD Printer Valid Valid3 RXD PC Valid Valid4 RTS Printer Invalid Valid5 Signal GND — Valid Valid6 DTR Printer Valid Valid7 DSR PC Valid Valid8 CTS PC Invalid Valid9 CI — — —5 169
