Remove the “pvr” driver from your kernel configuration, rebuild your kernel, and you'll automatically fall back to serial console.

Just to keep life interesting, the MicroVAX 3100 has some "interesting" console ports behaviours based on the setting of the BREAK enable switch. When the console is not enabled to respond to BREAK, MMJ-1 is the console port. MMJ-3 will (confusingly) output the results of the selftest in parallel with MMJ-1. When the console is enabled to respond to BREAK, MMJ-3 becomes the console port, and MMJ-1 will (confusingly) output the results of selftest in parallel with MMJ-3.

For newer workstations (4-digit B/C/J class), PDC will revert to using SERIAL_1 if a USB keyboard is not detected at boot up. For some models of older workstations, you can either remove the framebuffer card, or hold down TOC for ten seconds while booting up. However, this does not work on all models.

This is a communication port on the back of the computer where your cable will plug into the computer.

There are many many other ways to interact with the Seven. The remote however, can be used as a mouse when not in the MythTV interface. Use the remote like you would any mouse to navigate the Seven. You can also connect a keyboard and mouse to the Seven like any other PC via usb, firewire, or PS2.

A serial console is a device which allows command-line (like telnet/ssh) access to your server over a serial port. This allows you to access and fix your server if a network/firewall setting is remotely misconfigured. More importanly you can remotely boot into single user, change kernel image or options, and see all the messages sent to the console at boot.

Our EZ serial switch all have auto uplink function and all ports support it. So that means any port could be the uplink port to the other switch

Yes, because the SignaLink doesn't require a connection to the computer's serial port! Unlike other interfaces, the SignaLink never requires a serial port connection. This is particularly handy if your computer doesn't happen to have one! In addition to simplifying your installation, this feature also reduces the likelihood of the computer's RF noise getting into your radio. It also eliminates serial port related transmit problems that plague other interfaces.

The serial port should be located on the back of your computer. An example of a serial port image is provided here.

If you are still using MATLAB 5.x, you might find something on this page: http://www.mathworks.com/matlabcentral/fileexchange/Category.jsp?type=category&id=34

A#8.15: This is usually caused by serial port configuration problems. Common symptoms may be: % copycat .ttyco .ttya Error opening tty .ttya, aborting. or % /usr/sbin/getty 8bit.38400 .ttya getty: .ttya: I/O error The first thing to check is that the following GNO serial port drivers exist: /dev/modem /dev/printer Next, ensure the following two lines are in your /etc/tty.config file, and that they are uncommented: modem 2 .ttya printer 1 .

Yes. A closed "workgroup" environment can exist without having to uplink the EthIR Switch to an existing network. In this scenario several infrared devices connected to the EthIR Switch can share resources and communicate with each other, provide internet connectivity (if one device is connected to the Internet via a modem) and allow for printing services if a printer is attached to one of the other devices all in this closed "stand-alone" environment.

No. The Console uses software and a membrane switch pad to control power. It is always on stand-by and will draw about 18mA.

I've connected the USB to Serial adapter but it's on Com Port 5 (or higher) and your software only has Ports 1-4. This issue applies to the c\temp software only. This has been resolved with the new version of the MDAS-Pro software. If you do not have a copy of this software, please contact us.

Some unnamed clone cards have also been known to work, especially those that claim to be AST compatible. USB device support was added to FreeBSD 3.1. However, it is still in preliminary state and may not always work as of version 3.2. If you want to experiment with the USB keyboard support, follow the procedure described below. Add the following lines to your kernel configuration file, and rebuild the kernel.

There are new laptops without serial port, but a RS232-USB adaptor can be used to connect the IDE-Series to PCs. This adaptor creates a virtual COM port that can be selected on the program to work with the unit as usual. Theoretically any RS232-USB adaptor will work with this device, requirements are 9,600 baud transfer. We can supply a well-tested adaptor if you can not find a suitable one.

You will need to buy a USB/SERIAL port adapter. In the USA, the best one is the KEYSPAN -19HS adapter. The most important thing is to install the KEYSPAN software FIRST and then make sure the adapter can talk to your PC computer. Note which COM port your USB adapter software uses and change this in ergoRacer software when needed. There is a very specific ïorderÍ to plugging in the adapter in order to get it to talk to the PC and ErgoRacer.

If you don't have a serial port available but do have a USB port available you can purchase a serial to USB adapter that will look something like the following:

For Unix, see a Usenet post by Mitch Chapman: http://groups.google.com/groups?selm=34A04430.CF9@ohioee.com

It's system-dependent. Under Unix, you typically open, read, and write a device file in /dev, and use the facilities of the terminal driver to adjust its characteristics. (See also questions 19.1 and 19.2.) Under MS-DOS, you can use the predefined stream stdaux, or a special file like COM1, or some primitive BIOS interrupts, or (if you require decent performance) any number of interrupt-driven serial I/O packages.

It allows the application to interface to the GPS receiver through the same interface (commands and logs) as an external controller would through a physical com port.

This depends on which operating system your program is running on. In the case of Unix, the serial ports will be accessible through files in /dev; on other systems, device names will doubtless differ. Several problem areas common to all device interaction are the following: lockfiles Your system may use lockfiles to control multiple access. Make sure you follow the correct protocol. Unpredictable behavior can result from multiple processes reading from one device.

The serial port is a 9-pin D shaped connector, similar to the video connector except with less pins. Usually, there are two on a PC. One may possibly be in use by the mouse (mainly on older machines). They are also referred to as Com ports or Communications ports. They are identified in Windows as Com1, Com2 etc. Look in the device manager under "ports" and you will see if you have any set up - if not, you may have to enable them in you motherboard's bios via the CMOS setup utility.

Answer: Three serial ports are provided. One can be used for external control from a modem or other serial device. The other ports can connect to managed serial devices (such as routers, PCs, servers, or other RS-232 devices). Port 3 is the default control port. Ports 1 & 2 use the PC standard DTE pinout, with RXD on pin 2, and TXD on pin 3 of the male DB-9. Port 3 has TXD on pin 2, and RXD on pin 3 of the female DB-9. Port 3 offers hardware handshaking; ports 1 & 2 do not .

Johan Bevemyr wrote one which works for unix machines. The code is freely available at the contributions area as serial-1.0. There have been discussions on the mailing list about writing a more general driver which also works on windows machines. Nothing much has come of this (lack of interest?).

Serial port pass through was developed by Extron for the IPL T S2, IPL T S4, IPL T SF24, and IPL T SFI244 Ethernet control interfaces. Serial port pass through allows data on one COM port to be redirected, or passed through, to another COM port. One common application of this feature is to retrofit and network enable existing control systems.

The 10-pin header next to the dip switches is a 2nd serial port. You can hook this up to your PC's serial port (with a null modem), and get connectivity that way, utilizing the 'qtalk' app on the i-opener. This seems to support zmodem, but the i-opener doesn't seem to have the sz/rz binaries. If it did (or if you can find/FTP them), it might make an easy way to transfer files to/from your PC.