similar to: CentOS Digest, Vol 186, Issue 8

On Wed, Jul 08, 2020 at 01:40:27PM -0500, Chris Adams wrote: > Once upon a time, John Pierce <jhn.pierce at gmail.com> said: > > yes, but is it 'basic serial UPS' or is it 'enhanced serial UPS' ? the > > former do NOT use the rx/tx data of the serial port at all, they ONLY use > > the serial port control signals, and they probably will NOT work with a

Once upon a time, John Pierce <jhn.pierce at gmail.com> said: > yes, but is it 'basic serial UPS' or is it 'enhanced serial UPS' ? the > former do NOT use the rx/tx data of the serial port at all, they ONLY use > the serial port control signals, and they probably will NOT work with a > USB port because they require very specific behavior from those signals at

On Wed, Jul 8, 2020 at 8:46 AM H <agents at meddatainc.com> wrote: > > I believe I mentioned that the UPS has the serial port, the computer thus > has USB. > > yes, but is it 'basic serial UPS' or is it 'enhanced serial UPS' ? the former do NOT use the rx/tx data of the serial port at all, they ONLY use the serial port control signals, and they probably

Todd Walter wrote: > This may not be a consolation, but USB to serial converters are > notoriously unreliable (we use them to program Omron & Allen-Bradley > PLCs). IIRC it had to do with the way they implement CLK timing (which > is why your bps can't be set properly.) More often than not, they > haven't worked for us under a real Windows installation so I'd

doctordruidphd wrote: > I am trying to use software to program a scanner radio (BCD396t and UASD software). The software installs and seems to run properly, reading and writing database files. But I cannot connect to the scanner, through a USB-to-serial cable. > OS: ubuntu-8.10, kubuntu-8.10, debian/lenny (tried them all) > > lsusb identifies the cable as follows: > Bus 002 Device

hello everyone, I've been testing the NUT solution as opposed to the undocumented LanSafe application to control my Eaton UPS. I am on a Slackware 13.37 system with a 2.6.37.6 kernel. NUT version is 2.4.3 . I installed the tarball by compiling it directly on my system (as a slackbuild package). The UPS is an Eaton Powerware 9155, but I don't know how to obtain the manufacturing date. The

Hello I installed CentOS 8 on a clean system.I tested a pl2303 ic with different PID. If i use HP PID 0x4349,i will receive junk data after connecting, but the pl2303 PID 0x2303 work normally. Does someone know about how to fix this situation? thanks Test video link: HP VID/PID - https://www.dropbox.com/s/9hj7im5tr4e1v1u/HP.mp4?dl=0 Prolific VID/PID -

hi! some time ago i have purchased card reader for scanning sim-card. it have usb inerface. in set was cd with soft (as usual only for windows) soft on cd: usb-driver installer sim max 5.16 & i try to run it on mandriva2008 kernel 2.6.22.9 first i try to install 'usb-driver installer.exe' then install sim max 5.16(it's 2 prog.: sim editor and sim scanner),but that's wrong way!

Hello, I have two SMS PowerVision PV2200 BIFX, that came with a serial port, I used a serial - usb conversor to conect it to my pc it recognized as: lsusb -s 001:005 -vvv Bus 001 Device 005: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at

I have a USB to serial converter attached to my box. pl2303: Prolific PL2303 USB to serial adaptor driver if I login to the box and send/receive serial commands over this unit it works without error EVERY time. however, if I run the same command set from with-in the extensions.conf with System() I get errors in dmesg like "pl2303 ttyUSB0: pl2303_open - failed submitting read urb, error

I am far from expert on these matters. But have a couple questions: 1. Are you sure that /dev/ttyUSB0 exists and is the result of the Prolific USB->serial converter? For example, if you yank the Prolific and reboot, is /ttyUSB0 there still? It is possible that there is another /dev/ttyUSBx out there.I doubt this but wonder. 2. I have recently been fuddled due to permission problems of

Hello, everyone - I have an old Windows app - a ship navigation program - that needs to see GPS input on a serial port (it was written in the pre-USB days.) My laptop, however, has no serial ports - but this same program, when run on a friend's Windows box, can read the GPS info from the USB-connected GPS via the "USB-Serial Driver". This is one of the frustrating bits of this

This is a general problem with the low-cost Prolific processor chip and drivers. You should invest in a better USB to Serial adapter (http://www.usconverters.com/index.php?main_page=product_info&cPath=67&products_id=244) with a FTDI chipset. It costs a bit more but its well worth the money. The drivers for the FTDI chipset are well documented and compatible with most devices.

I am trying to use software to program a scanner radio (BCD396t and UASD software). The software installs and seems to run properly, reading and writing database files. But I cannot connect to the scanner, through a USB-to-serial cable. OS: ubuntu-8.10, kubuntu-8.10, debian/lenny (tried them all) lsusb identifies the cable as follows: Bus 002 Device 002: ID 067b:2303 Prolific Technology, Inc.

Hi All, I have an mge pulsar esv 14+ rackmount UPS connected via straight through serial cable to a USB to serial adaptor (My motherboard does not have a native RS232 port). I am running Ubuntu Server 9.04 x64, and nut 2.4.1-2ubuntu4 installed via APT. I am getting the error: Poll UPS [ups1 at localhost] failed - Driver not connected My conf files: (ups.conf) [ups1] driver=mge-utalk

    Lately I replaced my 10+-year-old server with a nano-ITX-type one that has USB but not old serial ports.  I connected my FE700VA to DB25-to-9-to-USB cables, but haven't been able to set it up. Apparently my DB9-to-USB cable (Prolific Technology, Inc. PL2303 Serial Port) has issues needing old software (setserial?) and some new software (fconfigure) being changed.  Has anyone managed

You are very welcome. One thing that I am working on now involves removing the step toward the beginning: xe pif-reconfigure-ip uuid=<UUID of the bond created above> mode=static gateway=<GATEWAY> IP=<IP ADDRESS> netmask=<NETMASK> DNS=<DNS SERVER ADDRESS> I do not believe that this step is necessary since we will not use the pif directly. We will use

Hi Users NUT, I want monitor a UPS of brand SMS (Sinus Double 8 KVA) using a raspberry-pi. In compatibility list, is listed to use the blazer_ser driver. I use a USB adapter to RS-232 conected in to the No-Breake. Follow the comands e confs. root at rasp:/home/pi# lsusb *Bus 001 Device 004: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port* Bus 001 Device 003: ID 0424:ec00 Standard

While I am still in the process of working through this here are the steps I am taking to set up each machine. 1) Since each of my servers have multiple NIC ports I bond them together (see page 34 of the Administrators Guide) first. This is best down from the physical server and not via the remote console. If you do it remotely you will then have to reconfigure the management port before

On Jun 10, 2013, at 11:05 AM, Jim Seymour wrote: > I tried all three: bcmxcp (produced only "Receive error > (PW_COMMAND_START_BYTE): 0!!!"), blazer_ser ("blazer_status: short > reply") and bestups ("debug level is ..." and "Unable to detect..."). You mentioned the null-modem cable, but are you using a motherboard RS-232 port, or a USB-to-serial