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The method of interfacing the Zebra S-Series Printer to a data source depends on the communication options installed in the printer. Depending on how the printer was ordered, the interface is either an RS-232 serial data port or a parallel port.

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When communicating via the serial data port (RS-232), the baud rate, number of data bits, and the parity are user-selectable (see Table 1 on page 40 for acceptable setting combinations). Parity only applies to data transmitted by the printer, since it ignores the parity of received data. The S-Series Printer is fixed at 1 stop bit, so make sure that your host is also set at 1 stop bit.

When communicating via the parallel port, the previously mentioned parameters are not considered.

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The connections for the standard interface are made through the DB-25S connector on the rear panel. For all RS-232 input and output signals, the S-Series Printer follows both the Electronics Industries Association’s (EIA) RS-232 and the Consultative Committee for International Telegraph and Telephone (CCITT) V.24 standard signal level specifications.

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Pin No.	Description
1	Frame Ground for Cable Shield
2	TXD (Transmit Data) output from the printer
3	RXD (Receive Data) input to the printer
4	RTS (Request to Send) output from the printer
6	DSR (Data Set Ready) input to the printer
7	Signal Ground
20	DTR (Data Terminal Ready) output from the printer

Note: Pins 5, 8, 10-19, and 21-25 are unused and unterminated.

Table 3

46 Zebra S-Series User’s Guide