search for: prolific

...s 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 Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub The description of equipment...

...a 40GB IDE laptop hard drive I took out of a dead laptop and I was hoping to put some good use to it. The drive is inside a USB drive enclosure and I carry it in my laptop bag. Its not big enough to be a backup drive, and generally too big to BIOS boot from. The chipset on the enclosure is from Prolific and registers as a "Mass Storage Device" I haven't had good luck with prolific based products in the past as I have a USB->serial converter with a prolific chipset that does not work worth beans. What I was hoping to do with the drive was partition it with small enough partitions...

...e serial port control signals, and they probably will NOT work with a > > USB port because they require very specific behavior from those signals at > > power up and reboot times. > > I've used various serial devices, including UPSes, via various > USB-to-serial adapters (Prolific PL2303 and FTDI FT2232C), and all the > signaling works fine. Only issue you sometimes have is that there are > many cheap adapters on Amazon that claim to be Prolific or FTDI but are > in fact counterfeit clones - those may or may not work reliably for ANY > purpose. > Another po...

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

...1 addr 3: low speed, power 20 mA, config 1, ellipse(0xffff), MGE UPS SYSTEMS(0x0463), rev 0.01 port 2 addr 4: full speed, self powered, config 1, Standard USB Hub(0x3301), vendor 0x03eb(0x03eb), rev 3.00 port 1 addr 5: full speed, power 100 mA, config 1, USB-Serial Controller(0x2303), Prolific Technology Inc.(0x067b), rev 3.00 port 2 addr 6: full speed, power 100 mA, config 1, USB-Serial Controller(0x2303), Prolific Technology Inc.(0x067b), rev 3.00 port 3 addr 7: full speed, power 100 mA, config 1, USB-Serial Controller(0x2303), Prolific Technology Inc.(0x067b), rev 3.00...

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 various sorts. Are you sure that the user under...

...Change console settings to point to the serial port as per Giles. Use a USB-to-serial converter to connect to a laptop running a terminal program, or serial cable with a dekstop that still has a serial port. May need a null-modem cable, I don't remember. We use a DIGITUS USB2Serial Converter (Prolific based USBID: VID:067B PID:2303) and then screen /dev/DEVICE 115200 -- LF

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 - faile...

...converter to connect it there. dmesg shows: usb 6-2: new full speed USB device using uhci_hcd and address 3 usb 6-2: New USB device found, idVendor=067b, idProduct=2303 usb 6-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 6-2: Product: USB-Serial Controller usb 6-2: Manufacturer: Prolific Technology Inc. pl2303 6-2:1.0: pl2303 converter detected usb 6-2: pl2303 converter now attached to ttyUSB0 This converter appears to the system as /dev/ttyUSB0. But I presume for all practical purposes I should assume that this is just another serial port (correct me if that's wrong). My ups...

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 Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor...

...ware 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. PL2303 Serial Port > > I set up the link in dosdevices as follows: > ln -s /dev/ttyUSB0 com5 > > When I change the baud rate in the software, and then check with stty, it is changing the baud rate on ttyUSB0, so that part works. This computer has only USB ports, no...

...e multiple servers running stock CentOS 7 rsyslog 7.4.7-16.el7, which are configured to log locally and over TCP to a remote logserver, also running stock CentOS 7 rsyslog. The remote server uses imptcp to receive, and pretty basic rules to parse and commit to disk. I have several systems that log prolifically, but periodically, they stop soon after the remote log server HUPs (daily logrotate). Very soon after they stop logging (completely, even to local files), the services on these systems block, and our monitoring system starts alerting. Restarting rsyslog on the clients proves ineffectual. The s...

Hello. I have an cheap seriell to usb adapter with the Prolific chipset hooked on my mac, but I don't know which tty to configure. OS X regognizes the device in its system profiler. /dev/ttys0 seems wrong. Can someone please enlighten me? Thank you for your help! Greetings, Robert Welz

...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 - https://www.dropbox.com/s/7vahhzjx64g1fs4/Prolific.mp4?dl=0 -- ?????????? LABAU Technology Corp. Scott Chen TEL : 22182277 ext:382 FAX : 22185522 ?? :?????????531-1?9?

...ll, 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 > power up and reboot times. I've used various serial devices, including UPSes, via various USB-to-serial adapters (Prolific PL2303 and FTDI FT2232C), and all the signaling works fine. Only issue you sometimes have is that there are many cheap adapters on Amazon that claim to be Prolific or FTDI but are in fact counterfeit clones - those may or may not work reliably for ANY purpose. -- Chris Adams <linux at cmadams...

...d they probably will NOT work with > a > > > USB port because they require very specific behavior from those > signals at > > > power up and reboot times. > > > > I've used various serial devices, including UPSes, via various > > USB-to-serial adapters (Prolific PL2303 and FTDI FT2232C), and all the > > signaling works fine. Only issue you sometimes have is that there are > > many cheap adapters on Amazon that claim to be Prolific or FTDI but are > > in fact counterfeit clones - those may or may not work reliably for ANY > > purpos...

...dows installation so I'd imagine > you are really playing with fire using it under Wine. You may want to > try a cable that doesn't use the PL2303 bridge. > > Sorry I don't have any better solution for you, > > - Todd > > > I can only agree with you. Prolific usb serial adapters are very unreliable, especially with Linux and 64-bit systems. I have had several Prolific adapters (since they are the cheapest after all) but none of them have been working properly for an extended period. After we switched to FTDI based usb serial adapters (http://www.usconve...

    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 to do something like this?     I'm still also interested in knowing how to control the three UPSes I have in the house (except FE700VA not...

...pplication that uses a generalized boosting model to identify bots on Twitter: http://blog.revolutionanalytics.com/2018/03/twitter-bot-or-not.html Using the Computer Vision API from R to generate captions for images: http://blog.revolutionanalytics.com/2018/03/computer-vision-api.html The 20 most prolific package maintainers on CRAN: http://blog.revolutionanalytics.com/2018/03/the-most-prolific-package-maintainers-on-cran.html The first in a series of monthly roundups of links on AI, ML and Data Science http://blog.revolutionanalytics.com/2018/03/aimlds-roundup-march-2018.html A guide to using R w...

...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. PL2303 Serial Port I set up the link in dosdevices as follows: ln -s /dev/ttyUSB0 com5 When I change the baud rate in the software, and then check with stty, it is changing the baud rate on ttyUSB0, so that part works. This computer has only USB ports, no serial. I actually have...