Release Note

Welcome to VK258 8-Channel Digital I/O Expansion Box

Notice: Before downloading the software , be sure to read the following information carefully.

This latest version is cumulative and includes the corrections contained in all previous revisions. There is no need to install previous version if you are installing this one.

Version History
Version	Description	Note
v3.4.334	1. Supports Telnet CLI (command-line interface) mode for third-party system integration 2. Bug fixes
v3.1.302	1. Support SSH communication protocol
v3.0.294	1. Bug Fixed
v2.8.271	1. Enhance the stability of communication with controllers
v2.6.253	Initial released

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Release Note

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