---
title: "Can WIZ145SR J2 Connector be left unconnected?"
url: "https://maker.wiznet.io/forum/13952"
markdown_url: "https://maker.wiznet.io/forum/13952/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "mik"
created: "2020-07-21T12:05:40+09:00"
last_activity: "2020-07-21T12:05:40+09:00"
language: "en"
views: 426
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Can WIZ145SR J2 Connector be left unconnected?

## Question

Asked by mik on 2020-07-21 in Serial-to-Ethernet & ConfigTool.

Does the WIZ145SR J2 connection have to be connected at all in my own design?

---

Source: https://maker.wiznet.io/forum/13952