127RS-232 Serial InterfaceNOTE: The RS-232 serial interface circuit characteristics are compatible withthe Electronic Industry Association Specifications EIA-232-E andEIA-422-B.The RS-232 serial interface enables the printer to operate with bit serialdevices that are compatible with an RS-232 controller. The input serial datatransfer rate (in baud) is selectable from the printer's control panel. Baud ratesof 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 baudrates are available.The length of the data cable from the host computer to the printer must notexceed 50 feet (15 meters) for RS-232.Table 6. Standard 500, 1000, 1500, and 2000 lpm ModelsRS-232 Serial Interface Connector Pin AssignmentsInput Signals Output Signals MiscellaneousSignal Pin Signal Pin Signal PinReceive Data (RD) 3 Transmit Status & ControlData (TD)2 Chassis Ground 1Clear To Send (CTS) 5 Request To Send (RTS) 4 Signal Ground 7Data Set Ready (DSR) 6 Data Terminal Ready (DTR) 20Data Carrier Detect (DCD) 8Table 7. RS-232 Serial Interface Connector Pin AssignmentsInput Signals Output Signals MiscellaneousSignal Pin Signal Pin Signal PinReceive Data (RD) 2 Transmit Status & ControlData (TD)3 Chassis/Signal Ground 5Clear To Send (CTS) 8 Request To Send (RTS) 7Data Set Ready (DSR) 6 Data Terminal Ready (DTR) 4Data Carrier Detect (DCD) 1
