# Modem sharing device

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Modem_sharing_device
> Markdown URL: https://mediated.wiki/source/Modem_sharing_device.md
> Source: https://en.wikipedia.org/wiki/Modem_sharing_device
> Source revision: 1300846076
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description | Modem sharing device for sharing serial connections}}
{{One source|date=July 2025}}

A '''modem sharing device''',<ref>{{cite web |title=RAD MMS 2-Channel Modem Sharing Device |url=https://www.data-connect.com/rad_mms.htm |website=data-connect.com |access-date=16 July 2025}}</ref> also called a '''line sharing device''', '''modem sharer''' or '''line sharer''', allows multiple [Binary Synchronous Communications](/source/Binary_Synchronous_Communications) devices to share a [serial connection](/source/Serial_communications). [Synchronous](/source/Synchronization_(computer_science)) and [asynchronous](/source/Asynchronous_serial_communication) datastreams are supported. A common example was a  [Tandem](/source/Tandem_Computers)  host connected to [automatic teller machine](/source/automatic_teller_machine)s, with a [modem](/source/modem) or [router](/source/router_(computing)) in between.

==References==
{{Reflist}}

{{DEFAULTSORT:Modem Sharing Device}}
Category:Networking hardware

{{Compu-hardware-stub}}

---
Adapted from the Wikipedia article [Modem sharing device](https://en.wikipedia.org/wiki/Modem_sharing_device) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Modem_sharing_device?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.