Connection

[Both BioStar] Daisy Chain and RS485 Connection
In an RS-485 daisy chain connection, it is crucial that the resistors are properly installed and the cable is an AWG 24 Twisted pair with Internal impedance...
Thu, Aug 28, 2025 at 10:06 PM
[BioStar 2] Device Is Disconnected Frequently And Randomly
Q. Device disconnection frequently appears in the BioStar 2 event log. It is okay for a few hours, but I see "Device Disconnection Detected" sever...
Thu, Aug 21, 2025 at 8:00 PM
[BioStar 2] Server and Device Port Usage
BioStar 2 uses several ports to establish device and data communication. This information is crucial if you are installing the devices on remote networks wi...
Fri, Jun 13, 2025 at 7:02 PM
[BioStar 1] Connection Modes (Direct / Server)
The chart below shows a quick summary of the differences in the two modes. If a device in server mode loses connection and then reconnects to the serv...
Sun, Aug 25, 2024 at 9:20 PM
[Both BioStar] Checking Device IP and MAC Address Manually
There may be several reasons why you would like to know the MAC address of a Suprema device: You do not have a DHCP server and need to give IP address...
Thu, Jul 28, 2022 at 2:06 PM
[BioStar 2] Transferred Data Size (Log size, Bandwidth)
If you're curious how much data is used to transfer user information, make a calculation of your basic user information and generated logs calculate how...
Tue, Jun 1, 2021 at 8:55 AM
[BioStar 2] Troubleshooting Cloud Connection Issue (Tunnel Not Found Error)
You can configure the BioStar 2 Cloud to connect to the BioStar 2 web client with URL from anywhere, even outside your local network.  Please check if your...
Tue, Mar 2, 2021 at 2:55 PM
[BioStar 2] Connection Modes and Troubleshooting Connection
The concept of device connection is different in BioStar 2 compared to BioStar 1's server mode and direct mode. 1. Log upload is automatic regardless...
Thu, Nov 12, 2020 at 1:16 PM
[BioStar 2] Troubleshooting Device Connection Issue in VPN / WAN Environments
Connection Methods There are 2 methods you can use to connect BioStar 2 devices to the server if the devices are in a different network from the server.  ...
Mon, Oct 19, 2020 at 4:14 PM
[BioStar 2] Changing Biomini / USB Agent Port
The default port of the USB Agent for Biomini and DE-620 usage is port 8081 and 8082.  If those ports are being used by another service, you will not be ab...
Wed, Oct 14, 2020 at 4:23 PM