20Printer Setup

Select a Communication Interface

Types of Connections

The method of connecting the printer to a data source depends on the communication options installed in the printer and the host computer. This section provides basic information about common interfaces.

When communicating via the serial data port (RS-232), the baud rate, number of data and stop bits, the parity, and the XON/XOFF or DTR control should be set to match those of the host computer. See Table 9, Printer Parameters on page 79 to configure these parameters. When communicating via the parallel port, the previously mentioned parameters do not apply.

RS-232 Serial A serial communication method consisting of data and control signals; available as a standard feature on most personal computers and other hosts.

•Advantages: Cables and connectors are readily available from computer equipment stores and suppliers; easy to connect; two-way communication between the computer and the printer; relatively long cable length.

•Disadvantages: Slower than the parallel connection; limited to 50 feet (15.24 m) of cable; may need to change printer parameters to match host computer; need to use a null-modem adaptor to connect to the printer if using a standard modem cable.

Figure 6 • Connecting the Printer through the Serial Data Port

9-Pin Female Connector

25-Pin Female Connector

and Standard Modem Cable

and Null Modem Cable

Printer

Computer

Printer

Computer

1

 

 

 

2

 

2

 

3

4

5

1Null-modem adaptor (if using a standard modem cable)

29-pin male connector, connected to printer or null-modem adaptor

39-pin female connector, connected to computer

425-pin female connector, connected to computer

5Maximum cable length = 50 ft. (15 m)

11342L-001 Rev. A

105SL User Guide

6/30/06