CITIZEN CT-S310II - Manual (Page 22)

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1. Turn off the power.
2. Orient the interface cable correctly and insert it into the interface connector.
Use a serial interface cable with the connection layout shown below.
3.2 Connecting Interface Cables
CAUTION
„ When disconnecting the cable, always hold the connector.
„ Be careful not to insert the USB interface cable into the cash drawer kick-out
connector.
„ To connect more than one printer to a single computer via a USB interface you must
change the serial number of the USB interface.
CAUTION
Place the interface cable so people do not trip on it.
Serial interface USB interface
9-pin (female) - 9-pin (female) cable
PC Printer
Signal Pin Pin Signal
RXD 2 2 RXD
TXD 3 3 TXD
DTR 4 4 DTR
SG 5 5 SG
DSR 6 6 DSR
RTS 7 7 RTS
CTS 8 8 CTS