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RS232C Connections
§ The RS232C Interface signals for the S2000T Series printers are terminated on a 6 PIN
RJ type data connector located at the back of the printer (Figure 3).
§ Six connections are provided from the Serial Interface to the host computer for proper
operation of this option.
§ The table below lists the Serial Interface signals and pinouts on the RJ connector.
§ A minimum of two connections are required for operation, RXD-pin3 and Common-pin1.
RJ
CONNECTOR PIN #
FUNCTIONAL
DESCRIPTION
SIGNAL
NAME
3 RS232 from Host (INPUT) RXD
2 RS232 from Printer (OUTPUT) TXD
6 Request to send from Host (INPUT) RTS
4 Clear to send from Printer (OUTPUT) CTS
1, 5 Logic common COM
RS232C Technical Specifications
§ RS232C technical specifications are as follows:
DATA TRANSFER RATE: 2400 Through 19200 baud
WORD LENGTH: 1 Start bit
7 Or 8 Data bits
1 Or 2 Stops bits
PARITY BIT: None, Odd or even
SIGNAL LEVELS: Mark or Logical
1 = -3 to -15VDC
Space or Logical
0 = +3 to +15VDC
HANDSHAKING: RTS/CTS or XON/XOFF
§ Caution:
• In one version of the Impact Printer, the baud rate is from 1200 through 9600.
