Standard I/O Ports

Most system unit models have two integrated (standard) EIA 232 asynchronous serial ports. The model M20/M2A features a single integrated asynchronous serial port that can be converted to support two serial devices using an optional fanout cable. EIA 232 asynchronous serial devices can be attached directly to the standard serial ports using standard serial cables with 25-pin D-shell connectors. The machines capable of multiprocessing have three serial ports.

Configuring an EIA 232 Asynchronous Terminal Device

This procedure allows you to define and configure a tty device connected to a standard serial port, an 8-port, or 16-port asynchronous adapter.

Procedure

1. Use the smit mktty fast path to access the Add a TTY menu.
2. Select Add a TTY.
3. Select tty rs232 Asynchronous Terminal.
4. Make a selection from the available standard I/O, 8-port, or 16-port adapters displayed on the screen. If no adapters are displayed or if they are in a defined state, check the configuration, cabling, and setup again.
5. In the displayed dialog fields, you can add or change the tty attributes.
6. When you have finished, select Do.

Configuring an EIA 232 Asynchronous Printer/Plotter Device

This procedure allows you to define and configure a printer/plotter device connected to a standard serial port, an 8-port asynchronous adapter, or a 16-port asynchronous adapter.

Procedure

1. To create a printer/plotter device on an asynchronous adapter, use the smit pdp fast path to access the Printer/Plotter Devices menu.
2. Select Add a Printer/Plotter.
3. Make a selection from the list of printer and plotter types shown on the screen, and press Enter. For this example, the following selection was made:

   osp Other serial printer

4. Select the rs232 option.
5. Make a selection from the available 8-port controllers on the screen. If no controllers are displayed or if they are shown in a defined state, check the configuration, cabling, and setup again.
6. In the displayed dialog fields, you can add or change the printer/plotter device attributes.
7. When you have finished, select Do.