Network Knowledge Base Articles

Digi AnywhereUSB Plus — Isochronous devices Bandwidth & Port Placement.
High‑resolution, high‑frame‑rate cameras can exceed the bandwidth of a single USB Host Controller when connected together. To avoid bandwidth exhaustion, place cameras across different Host Control...
https://www.digi.com/support/knowledge-base/digi-anywhereusb-plus-—-isochronous-devices-bandwi
Nov 24, 2025
Linux anywhereusbmanager LIST gives Error: Unable to initialize GTK+, is DISPLAY set properly?
Issue/Question (for FAQ and Troubleshooting articles Only)After instaling the Linux AnywhereUSB Plus driver and AnywhereUSB Manager from Debian amd64 package and following the install instructions,...
https://www.digi.com/support/knowledge-base/linux-anywhereusbmanager-list-gives-error-unable-t
Nov 04, 2025
Digi International Security Notice - TRECK TCP/IP Stack "RIPPLE20" VU#257161 ICS-VU-035787
Digi International Security Notice TRECK TCP/IP Stack "RIPPLE20" VU#257161 ICS-VU-035787June 16th, 2020  The following CVE’s have been assigned to these vulnerabilities:CVE...
https://www.digi.com/support/knowledge-base/digi-international-security-notice-treck-tcp-ip-st
Sep 04, 2025
Digi International Security Notice OpenSSL "Heartbleed"
Digi International Security NoticeApril 14th,2014(Updated 4/18/2014)CVE-2014-0160/ OpenSSL “Heartbleed”OverviewOn April 7th, a critical security vulnerability (CVE-2014-0160), nick...
https://www.digi.com/support/knowledge-base/digi-international-security-notice-openssl-heartbl
Sep 04, 2025
Evaluation of FREAK attack on NET-OS products
Overview:We have just completed our analysis on the impact of the FREAK vulnerability (CVE-2015-0204) on our NET-OS product. The vulnerability that has been listed in the notice, deal with the abil...
https://www.digi.com/support/knowledge-base/evaluation-of-freak-attack-on-net-os-products
Sep 04, 2025
How to have USB devices connected at boot using Anywhere USB Plus
When using Anywhere USB Plus to connect some USB devices to your PC via ETH, can be needed to have those USB devices automatically connected to the PC at boot without the needs to necessarily log i...
https://www.digi.com/support/knowledge-base/how-to-have-usb-devices-connected-at-boot-using-an
Feb 23, 2024
How to create a CA-Signed certificate using XCA application
This article explains how to create a CA-Signed certificate using XCA application.First, we need to create Certification authority (CA) certificate. Click the Certificates tabClick the New Cer...
https://www.digi.com/support/knowledge-base/how-to-create-a-ca-signed-certificate-using-xca-ap
Jan 17, 2024
3G sunset Digi firmware required updates
OverviewFor reference, this article relates to the main article titled 3G Network Sunset in 2022 impact on 4G devices.  This article provides the device types and part numbers of Digi dev...
https://www.digi.com/support/knowledge-base/3g-sunset-digi-firmware-required-updates
Mar 30, 2022
Digi One IA / IAP 2-wire RS-485 pinout
For a 2-wire RS-485 configuration, use one of the positive screw terminals (pin 6 or 3) and one of the negative screw terminals (pin 7 or 4).  The choice is yours, for example, pins 6&7, 6...
https://www.digi.com/support/knowledge-base/digi-one-ia-iap-2-wire-rs-485-pinout
Jul 17, 2017
Erratic mouse cursor behavior after installing a Digi device with a serial port
This issue, symptomatic of the mouse cursor "jumping around the screen", is likely due to Windows detecting the serial device attached to the Digi device as a serial mouse or a HID (Human...
https://www.digi.com/support/knowledge-base/erratic-mouse-cursor-behavior-after-installing-a-d
Jul 06, 2017
EDS File
Symptom:Is an Allen-Bradley / Rockwell Automation EDS (electronic data sheet) file required for a Digi product (specifically a Digi One IA RealPort)?Solution:No, at least not in most cases.  W...
https://www.digi.com/support/knowledge-base/eds-file
Jul 06, 2017
Reference Guide: Cable specifications for building serial cables
Cable Reference Guides:EIA-232 General InformationEIA-232 Flow Control PrimerEIA-232 Cables: DTE vs. DCEEIA-232 Signal InformationEIA-232 Cable SpecificationsEIA-232 Cable Capacitance vs. Length of...
https://www.digi.com/support/knowledge-base/reference-guide-cable-specifications-for-building
Jul 06, 2017
Performing a loopback test on Digi Connect and ConnectPort units using connect
 1. A loopback plug is shipped with Digi products for serial port testings. Plug the loopback plug into the serial port to be tested. 2. From the Windows CMD or a Unix/Linux "ro...
https://www.digi.com/support/knowledge-base/performing-a-loopback-test-on-digi-connect-and-con
Jul 06, 2017
Performing a COM port loopback test using PuTTY in Microsoft Windows
PuTTY is a free telnet/SSH client which can be downloaded from www.putty.org. To perform a loopback test on a COM port, first plug in the loopback plug into the desired port on your Digi hardware....
https://www.digi.com/support/knowledge-base/performing-a-com-port-loopback-test-using-putty
Jul 06, 2017