Specifies the switches used for the plotter driver.
The switch settings that follow are for the default serial protocol: 9600 baud, 7 data bits, even parity, and one stop bit. If you select another protocol, consult the Hewlett-Packard documentation for the correct settings. For the 7475, set the switches as shown in the following table to configure the plotter for the default settings of 9600 baud, 7 data bits, even parity, and one stop bit. If you select another protocol, consult the Hewlett-Packard documentation for the correct settings.
HP-GL switch settings
| Switch | 1 | 0 |
|---|---|---|
| B1 | X | |
| B2 | X | |
| B3 | X | |
| B4 | X | |
| S1 | X | |
| S2 | X | |
| DY | D |
To configure the 7550 and DraftMaster plotters for default settings, follow the Hewlett-Packard instructions for using the Enter and Next Display keys on the front panel to specify the following settings: monitor mode off, remote mode, stand-alone mode, XON/XOFF or hardware handshaking, direct mode, full duplex, 7-bit data, parity on, even parity, and 9600 baud. Automatic sheet feed is enabled on the 7550 when an asterisk (*) is displayed below the Sheet Feed key.
To configure the 7580, 7585, 7586, and all DraftPro models for default settings, set the RS-232C speed selector to 9600 and set parity on, even parity, and eavesdrop off. Set the emulate and expand switches to normal. If the plotter doesn't respond, wires 2, 3, or 7 might be strung incorrectly, or the plotter might be improperly configured. With a 7580, 7585, or a 7586, the remote light might be off. If the plotter's error light turns on, the speed or parity switches are probably incorrect.