Questions tagged [serial]
The general purpose communication interface and related protocols. Specifically, a serial interface transfers one bit at a time ("in serial"), and complies with the RS-232 standard.
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How to use a port that is labeled RS232 [closed]
I have a Medal Power Hybrid Solar Inverter (5.5kW, 48V) with a connector labeled RS232.
I'm attempting to retrieve data from the inverter by connecting it to my network via the LAN port. However, I'm ...
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Linux Driver CH341 USB Adapter Serial Port issue
On a x86_64 miniPC, a led strip can be controlled sending some bytes on a serial port.
This control works on Windows but fails on Linux.
On Windows, these lines in PowerShell switch the led strip off:
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xhci_hcd errors on CentOS 6 for cp210x device
We have very old CentOS 6 installed on CheckWay Sherman with Linux kernel 2.6.32-696.1.1.el6.i686.
We try to integrate external usbserial scales device but there are errors settings UART speed.
stty -...
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How to read elm327 obd2 raw data over bt using rfcomm?
I am trying to read my car data, i have hooked a cheap elm327 bt obd2 connector to it, and using lubuntu.
Basically this is what i have done, but its not fully working i end up with a sort of buggy ...
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USB Proxy "Dongle"
I need to be able to record all print requests to a printer physically connected via USB to a PoS like system. There is no need for me to manipulate the print job, I just need a "copy" of ...
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Grub CLI Arrow Keys Don't Work With IPMI SOL
When I am using the Grub CLI via IPMI sol I am unable to use the arrow keys, as well as some keys such as delete. What happens when I press the Left key I get random 'D' characters appearing, even ...
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Piping data from ethernet to serial and back to ethernet doesn't reach destination
CONCEPT VISUALIZED
I'm trying to establish a bidirectional communication where ethernet UDP packets enter a linux system (suppose a Raspberry pi) from eth0 interface and piped into the UART hardware ...
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NetworkManager gsm connection on Simcom SIM5320A via serial port is failing
Device
Hardware: Raspberry Pi 3
OS: Raspbian GNU/Linux 10 (buster)
NetworkManager: 1.14.6
ModemManager: 1.10.0
Modem: Simcom SIM5320A connected via UART to the port ttyAMA0
Problem
I don't think ...
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How are Serial Communications designed to be connected virtually on Dell PowerEdge 12th generation servers?
Im trying to figure out what exactly can be configured by the first three settings on Dell PowerEdge R720 Server BIOS's Serial Communications Screen.
Let me explain what (I think) I have understood:
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What are the minimum permissions to read the WMI class 'MSSerial_PortName'?
I am configuring a local application user (part of BUILTIN\Users) on a Windows 7 kiosk. The kiosk has a special USB device running on a virtual COM port. The user needs permission to read the WMI ...
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How to Reset a Dell EqualLogic PS6100 Without Password or Serial Access
I have before me a Dell EqualLogic PS6100 with two Type 11 (green) controllers. I have been tasked with refurbishing the unit ready for resale for an IT waste recycling firm. My boss is one of those ...
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serial mouse detected on windows 2008 r2 server
I was hoping to find out how to stop windows 2008 server R2 64 bit from detecting a serial mouse on the com port. i know the boot.ini version with /noserialmouse....etc for earlier versions also i ...
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Serial Over LAN on FreeBSD with SuperMicro X9-SCM-F
How can I setup Serial-Over-Lan (SOL) on FreeBSD with a SuperMicro X9-SCM-F motherboard? There are a few resources out there but they contradict each other, are unclear, and don’t actually allow me to ...
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replace APC smart signaling cable with RJ-45 to RJ-45
Is it possible to replace the APC Smart Signaling Cable PN: 940-1525A with an RJ-45 to RJ-45 cable?
The cable is built as an RJ-50 to DB9, but I need to connect it to a console server that only uses ...
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Turning an IBM lto6 sas HH drive from library to standalone, how?
new here.
I have been using a stand alone lto6 hh drive (ibm ts2260/3580 h6s) for two years. Just recently I bumped into an almost new ibm ts2900 autoloader with an hh lto6 drive in it and bought it.
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Connecting two routers via serial
I'm new to Cisco and I wanted to connect two routers with serial connection. This is how my network looks now:
Maybe I connected them wrong because when I try to ping from PC0 to either PC2 or PC3 I ...
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Serial-Over-Lan with Dell R410. Invalid data field in request
It's a R410 with the latest BMC firmware.
I can connect it from a MacBook.
$ ipmitool -v -I lanplus -H 192.168.1.23 -U root user list
Password:
ID Name Callin Link Auth IPMI Msg ...
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Using PuTTY for serial connection
I am attempting to enable web-management functionality on my Dell PowerConnect2824.
From what I can tell by reading the manual I need to connect via the serial port to enable web functionality.
I ...
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Can Serial I/O from a server be shared on an ethernet network switch?
I have a network switch, a Linux server, and my computer. The computer and server are both connected to the switch. If I connect the serial port of the server to the switch through a Serial to ...
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PPP / 3G modem not getting an IP: No network protocols running
Modem in use: SIM5310 connected to an ARM based board.
root@cm-debian:~# uname -a
Linux cm-debian 4.4.0-cm-t335-5.1-00030-gd350d89-dirty #29 SMP Sat Nov 4 19:18:48 PDT 2017 armv7l GNU/Linux
I am ...
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How can I simulate a modem over a VOIP connection?
I have a hardware device I need a server to dial into at regular intervals. The problem is I no longer have a POTS line or a modem in any of development computers, and all my production servers are ...
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Why do screen and minicom drop incoming bytes from a serial port while cat does not?
I recently needed to reset the password on an old APC UPS which requires connecting their proprietary serial cable, hitting the reset button, and logging in with the default username and password over ...
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SSH over serial on Windows
I need to establish SSH connection over serial between Windows and Linux machine. I used socat on Linux side to do forwarding from uart to SSH server at localhost and it works fine.
Goal:
SSH client - ...
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UDP to Serial port
I look for some solution for connect serial/UART port by UDP connection to another PC.
Now I use socat and have connection , but with lost packages, and slow transfer.
Can I use netcat for this, maybe ...
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Solaris10 Hard Disk Information
I am trying to inventory hard disk information remotely (serial number, disk size, manufacturer...) but am having trouble. I know the drive(s) are configured under a raid controller, but can I view ...
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Configuring NUT for old serial connected UPS (Tripp-Lite)
I have an old Tripp-Lite UPS (SU2200RTXL2UA) which I need to communicate with via it's RS232 Port (this model doesn't have a USB port). I'm trying to figure out which Serial NUT driver would be most ...
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Can you start a getty on /dev/pts/x ? Want a serial connection between my Linux KVM server host and Windows Guest
Here's what I have going on:
I have a Debian server running several services in Docker and a couple in KVM.
One of the KVM hosts is a Windows 10 VM that I actually use as a desktop by using PCI ...
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Having startup messages on virtual tty (monitor) AND serial console
I have enabled serial console over null-modem cable in Debian 10 like this:
/etc/default/grub:
GRUB_CMDLINE_LINUX="console=ttyS0,115200n8"
GRUB_TERMINAL=console
then systemctl enable serial-...
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initial cisco nexus setup without serial cable
I've never used a cisco switch. On the used 3048t i just got, there's a dedicated management ethernet port on the back, so i was blindly assuming it would just accept a dhcp address and give me ssh, ...
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TTY "Serial" Terminal over USB?
I have a few servers in a rack that like to drop their network connection, requiring a restart and/or handheld intervention. I purchased a Linksys NSLU2 and installed Debian on it in order to create a ...
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Ubuntu Serial Console Installer Encoding Issue
I'm trying to install Ubuntu 18.04 LTS via serial console. My PXE boot menu works fine, the initial load of the kernel into the ramdisk is legible, but as soon as the Ubuntu installer menu appears, ...
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Can a tablet device be used as a console to monitor the boot process of a CentOS/RedHat server?
Can a tablet device (e.g., Fire HD 8 tablet) be used as a console, to monitor the boot process of a CentOS/RedHat server?
For instance, is it possible to connect a BlueTooth adapter to the tablet's ...
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TTL/UART communication issue
I have (an awesome) Onion Omega2+ SBC and an A9G GPS/GSM module. The module has two UART ports.
I can easily read data from the UART_GPS but for some reason I cannot communicate with the UART port for ...
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Connect to switch's console port through ethernet patch panel
In our office building, we have a Cisco SRW2048 switch. On the back, it has a serial port for console connections. I would like to connect this console port to my computer in my room.
The switch is ...
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How to perform a APC 9617 Reset?
I've locked myself out of an APC 9617 management card. Trying to figure out how to reset the password, or even the card to factory defaults. All the documentation I can find says to connect to the ...
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XenServer Guest PV - Serial Port RS232
Is there any way how to forward (passthrough) physical serial port to XenGuest PV system?
I need to be able to configure serial device with virtual server on XenServer 6.2.
I’m looking for a solution ...
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Windows serial console
How do I enable a serial console on Windows (2008 and/or 2012) such that I can log into it like the Good Old Days of Real Servers and issue provisioning commands, ideally via PowerShell?
$ cu -l /dev/...
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Does anyone know connection points for Speakercraft DB9 to 3.5mm adapter cable?
I am looking for Speaker craft 3.5mm (4conductor) to DB9 serial cable to program MZC 64 through EZ tools. I am unable to find it online. Does anyone have the cable or know the contact points from 3....
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Connect over serial from Perle Iolan
I have a Perle Iolan connected to a server over serial. Cat < /dev/ttyS0 and echo "show hardware" >/dev/ttyS0 from the server I'm connecting to works as well as running serial 1 -show on the Iolan ...
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Mapping a remote serial port to a Debian VM
I have a Debian Stretch VM that is dynamically migrated between a few hosts. I need to connect a serial (RS-232) modem to it. Unfortunately, I cannot use the hypervisor for this.
I am looking for a ...
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QEMU and serial ports on the guest OS
Has anyone successfully managed to run a Guest OS in QEMU/KVM where the guest has full access to the Hosts serial port(s), be it /dev/ttyS0, COM1, or a virtual serial port provided by the Host.
It ...
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Can't get a serial console on MikroTik RB4011iGS+
I am trying to connect to the serial console of my MikroTik RB4011iGS+.
I might be missing something obvious, but I can't seem to get a terminal (or anything else).
Relevant documentation page:
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How to access Arista switch login?
I have an Arista 7048T-A switch that needs to be set up. However I can't seem to access the login prompt for the switch. I'm using PuTTY over serial connection. What i mean by not being able to access ...
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COM port redirect wont show up on Windows Server 2012 R2
I can't get serial COM port devices to show up on Windows Server 2012 R2 via RDP.
I am having no issue with redirected printers, but when it comes to serial COM devices, they just wont show up.
I ...
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How to add a serial port to a Windows 7 guest VM using Xen server 6.5?
We wonder how to add a SERIAL PORT (COM2) into a guest HPVM Windows 7 64 bits in a xen server 6.5 bare metal hypervisor.
We have some clients connecting through RDP v8.1 (from Win7-64 to Win7-64) ...
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ESXi - serial console as default console
I have headless Supermicro server with IPMI as my ESXi 5 but I would like to use serial console as default console for ESXi instead of accessing it via IPMI VGA console redirection. I have some ...
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What serial cable do I need for a Cisco/Linksys SRW2024P?
Some idiot (one guess as to who) installed a Cisco/Linksys SRW2024P in a 2nd location and forgot to change the IP before doing so. Now it's on a new subnet and I need to control it via console port.
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Closing a session on a Perle IOLAN
I am connecting to a serial port using a Perle IOLAN DS1.
I have noticed occasions when I have tried to log in and got an error message “line not available - press any key” which we think is due to ...
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How to tunnel the serial port from a remote machine?
I'm trying to access a remote serial console (a tty port on a remote machine) as if it's on a local machine. This is necessary for a serial-port only application to work on my machine. The remote tty ...
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