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 .

The connectors 3B2's use are called RJ-45. They are 8 conductor telephone like connectors, and lucky for us, are pretty standard. You can either buy the cables and connectors from AT&T for an arm and a leg, or elsewhere. I don't know about the cables, since I've never bought them from anyone but AT&T, but I have made my own RS-232 connectors with excellent results. Diagram of what you should see when looking at an 8 PIN modular jack connector. See similar questions...

Looking at the pins of the HP48 (the following diagram is showing the pins on the HP48, as you look at the calculator): _________ | o o o o | \_______/ ^ ^ ^ ^ | | | \------ 4 Signal GND | | \-------- 3 RX (input to the HP48) | \---------- 2 TX (output from the HP48) \------------ 1 SHIELD Stated another way: HP48 IBM 9 PIN IBM 25 PIN (From the outside edge -> inward) SHIELD------------------- SHIELD---------------- SHIELD TX (Output)<-------------2 RX (Input)------------3 RX (Input) RX (I. See similar questions...

Answer: Yes. You will need our USB connector from Agrowsoft if you with to use the USB port. You will need no additional connectors if you use a standard RS232 serial computer port. Answer: You can set up the software so that it sends text messages with both Alerts and a periodic "push" of current conditions. You specify the time interval (for example every 60 minutes). Your environments will be checking in with you rather that you having to check in on them! See similar questions...

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. See similar questions...

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

Answer: No, the included ISO 9141 port provides a physical translation of the Rx and Tx serial signals to those specified by the ISO standard if that feature is used. See similar questions...

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 . See similar questions...

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. See similar questions...

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. See similar questions...

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

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. See similar questions...

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. See similar questions...

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. See similar questions...

No, but it is much more convenient. Most ham radio sound card software can control your PTT via a serial port. If your software doesn't have serial control, unlikely, or you don't have a serial port connected, you can use all of the RIGblasters with your radio's VOX. In that mode the sound card audio is fed to your radio and your radio's VOX circuit will activate transmit. See similar questions...

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. See similar questions...

A. When attaching a PDA cradle to the serial (RS232) port, verify that the port assigned to your HotSync and/or ActiveSync software is Serial USB (COMx). The PA090 COM port assignment can be viewed by clicking START, SETTINGS, CONTROL PANEL, SYSTEM, clicking on the DEVICE MANAGER tab, clicking the "+" sign next to "Ports (COM & LPT) and looking for a "Serial on USB (COM#)" entry. See similar questions...

The PAUM002 only has PS/2 and USB connections. Standard or 3rd party PS/2 to Serial port adapters may cause detection problems and we do not recommend using them. A utility file is available on our website (www.targus.com/support), which will allow you to use the second mouse button and the screen scroller features on your MAC computer. My mouse doesn’t respond correctly anymore - After changing the port it’s plugged into, my mouse doesn’t respond the way it used to. See similar questions...