similar to: Need to test serial port connection

Displaying 20 results from an estimated 20000 matches similar to: "Need to test serial port connection"

2010 Jan 08
2
Serial port fun: CentOS 4.8 (32-bit) vs. CentOS 5.4 (64-bit)
I am in the process of migrating from running CentOS 4.8 (32-bit) to CentOS 5.4 (64-bit) on my AMD Sempron(tm) Processor LE-1300 system (it is running CentOS 4.8 32-bit because the disk images are from a previous PIII system), and things are 'interesting' WRT how the Lava Computer mfg Inc Quattro-PCI card is being handled. lspci (on CentOS 4.8 32-bit) yields: 01:0a.0 Serial controller:
2006 May 01
5
Gamatronic UPS using nut 2.0.3
I have a Gamatronic Smart Compact 750. I have it connected to my linux machine via serial cable and am running nut 2.0.3. There is no interruption in power, but the ups is reporting OB (on battery). Is there a configuration option I am missing? The relevant ups.conf entry is: [Gamatronic] port = /dev/ttyS1 desc = "Home Gamatronic UPS" driver = genericups
2008 Dec 03
1
how to rescan serial ports without reboot
Hi all, I hope this is possible. I have a server, with a network switch attached to the serial port, and I want to rescan the serial port (/dev/tty) to see if it picks it up? I'd prefer not to reboot the server if at all possible. dmesg reports ttyS0 as the active port: [root at zabackup01 ~]# dmesg |grep tty Bootdata ok (command line is ro root=/dev/System/root rhgb quiet xencons=tty6)
2015 Nov 23
2
Cannot access Patriot Pro II from new system
Hi list, on my previous (lenny or squeeze) machine, I had it up and running, but that machine and configs are gone - and on my new jessie machine (see device and config details below) I cannot start the driver: # /lib/nut/bestups -DDDDD -a Patriot_Pro_II_750 0.000000 debug level is '5' 0.000806 send_to_all: SETINFO device.type "ups" 0.000842 send_to_all:
2008 Jun 22
5
is it possible to login to a switch via RS232 / serial port from the shell?
Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work. I have changed the comms in minincom to use /dev/tty0 & the baud rate to 9600, yet I can't seem to connect with
2012 Jan 05
2
Serial port driver on CentOS 6
I installed CentOS 6 on a Dell Optiplex 790 with a StarTech.com dual serial port card, and the serial ports aren't being recognized. According to dmesg, only the built-in serial port is being recognized: # dmesg | fgrep ttyS serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A And lspci -v doesn't show that any drivers are loaded for it:
2008 Jul 03
5
Message size rejected
My daughter needs to send me a large file. It appears that it is getting through my ISP, but being rejected on my CentOS mail server. The message she's getting says A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: anne at localhost SMTP error: 552 5.3.4 Message size exceeds fixed limit
2008 Apr 26
1
NFS mount problems
This morning my laptop could not connect to the server by its fstab mounts. I restarted nfs and restarted the network on the server, all without making any difference. Restarting the network brought Bringing up interface borg2: RTNETLINK answers: File exists Error adding address 192.168.0.40 for eth0. but ifconfig shows the correct address for eth0. What else should I look for? Anne
2009 Oct 28
1
Missing package
The big update caused one of the rare re-starts on my mail server, so I saw the startup messages that I had forgotten about. Oct 28 10:50:04 borg2 python: [3424]: warning: python-dbus not installed. Oct 28 10:50:04 borg2 python: hp-systray[3424]: warning: Qt/PyQt 4 initialization failed. Oct 28 10:50:04 borg2 python: hp-systray[3424]: error: hp-systray requires Qt4 GUI and DBus support.
2009 Nov 06
1
Can anyone give me some ideas?
I've got a big UPS from an italian manufacturer MSC elettronica which should be megatec protocol based. They distribute it with Upsilon2000, developed by Megatec, and with a cable listed on the megatec site: http://www.megatec.com.tw/FAQ.htm How do I know the M2505 cable is the one that should be used on my UPS instead of M2502 cable? UPS that use both these cables are TRUE RS232 UPS
2013 May 13
5
Serial Passthrough broken in Debian Wheezy?
Hello, I just discovered a strange bug with serial passthrough in xen 4.1 on Debian Wheezy. The Dom0 has a GSM modem connected to serial port. The serial port is passed through to a DomU with options 'irq = [ 4 ]' and 'ioports = [ '3f8-3ff ]'. This worked as expected on Debian Squeeze with Xen 4.0 and Linux kernel 2.6.32 (both for Dom0 and DomU). On Debian Wheezy with Xen
2013 May 13
5
Serial Passthrough broken in Debian Wheezy?
Hello, I just discovered a strange bug with serial passthrough in xen 4.1 on Debian Wheezy. The Dom0 has a GSM modem connected to serial port. The serial port is passed through to a DomU with options 'irq = [ 4 ]' and 'ioports = [ '3f8-3ff ]'. This worked as expected on Debian Squeeze with Xen 4.0 and Linux kernel 2.6.32 (both for Dom0 and DomU). On Debian Wheezy with Xen
2005 Nov 07
3
HP/Compaq Rackmount UPS Support?
Hi, I have an HP R5500XR and a Compaq R3000XR that I would like to use with nut. I searched the compatibility lists and the mail list archives but couldn't find anything. They both have 9 pin serial ports. Can anyone give me any information about them, and if they are supported by nut? Thanks, Denny Fox
2011 Nov 11
3
COPILOT Glucose Meter COM problem
I am a 62 year old beginner in Ubuntu. Thanks for any help, guidance, suggestions on this problem! I have used commands like the following to be certain that I have an active com port: dmesg | grep ttyS rm com1 ln -s /dev/ttyS0 com1 So I suspect the solution lies somewhere in WINE. If all else fails I will get a USB to SERIAL converter cable and try that. My wife has an Abbott Labs Freestyle
2013 Dec 20
3
TCP port to TTY/Serial Port?
Hello, ? I'm trying to configure my system such that I have a TCP port listening which will send all data it receives to a serial port. ie:?? tcp/2112? -->? /dev/ttyS0 My goal would be to be able to: Use netcat to create the listen and redirect to a serial port: ? $ nc -l 2112 > /dev/ttyS0 Then in another window, run minicom at /dev/ttyS0 Then in a 3rd window, ? $ telnet localhost
2008 Jan 24
1
Could not connect to host box.domain.tld
I have used fetchmail/procmail/postfix/dovecot/kmail for some time on my mail server, and have set this up on three or four machines in the past. I'm now setting up a new server and having problems. I've reached the thinking-in-circles stage, so need a prompt. The box in question is called borg2.lydgate.lan, and resides at 192.168.0.40. I can ping both borg2.lydgate.lan and
2007 Mar 09
2
How do I configure additional serial ports?
I have installed two 4-port serial cards (http://www.startech.com/ Product/ItemDetail.aspx?productid=PCI4S550&c=US) on a CentOS 4.4 system. The hardware appears to be recognized correctly, as kudzu added 2 entries to /etc/sysconfig/hwconf and lscpi shows both cards (output of lspci -vv for both cards included at the end of this email): # lspci 00:00.0 Host bridge: Intel Corporation
2007 Nov 28
4
CyberPower 1500AVRT won't load driver!
Hello! I got my hands on a CyberPower 1500AVRT, and i'm trying to get it connected to my Gentoo machine. I've followed all the basic guides on setting up NUT and UPS' but have had no luck. My current ups.conf is: [cyberpower-gentoo] driver = cyberpower port = /dev/ttyS0 desc = Workstation Upon running /etc/init.d/upsd start or upsdrv start I get: * Starting
2001 Feb 16
2
Serial Port Access
Hi,. I have some legacy applications for MSDOS / 95 and a new NT version of an application that i would like to use. I have un-commented the lines in wine.conf about serial access but i cant seem to get any MSDOS or win32 application to talk, is this currently supported in (the lateset) wine ? regards --- Matthew J Fletcher NPD Firmware When did ignorance become a point of view ? ---
2008 Aug 08
1
MGE Ellipse 500 cable config
I have trouble in getting communication work with MGE Ellipse 500. I bought it second hand and I don't have the cable for it. How do I know if it's the Serial or USB model? The serial number of the unit is: 769B16015. I suspect it is the serial version as the label next to the RJ11 stands "com port", but I can't be 100% sure. MGE Ellipse serial cable pinout can be found