---
title: "WIZ105SR input signal"
url: "https://maker.wiznet.io/forum/11635"
markdown_url: "https://maker.wiznet.io/forum/11635/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "samvjt"
created: "2016-01-29T22:11:12+09:00"
last_activity: "2017-05-04T08:38:09+09:00"
language: "en"
views: 544
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WIZ105SR input signal

## Question

Asked by samvjt on 2016-01-29 in Serial-to-Ethernet & ConfigTool.

Is input(Rx and Tx) of module WIZ105SR is tri-state input?[DOC012916.pdf](https://maker.wiznet.io/forum/legacyFile.asp?path=tkqOUv0jG7Xq51BO5k2VJSsM03D.pdf) (9.46 KB)

## Replies

### Reply 1 by Edward, 2016-02-01

Hi…

WIZ105SR is Not tri-state input.

you need tri-state input??

If you need to use tri-state, You should control in the main MCU.

Thank you

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Source: https://maker.wiznet.io/forum/11635