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Model 4612 e-Twinax Controller (e-Twin@x  / BX6058)
Support for 112 Twinax Addresses / Devices Over any TCP/IP Connection

e-Twinax Controller - Model 4612 / 4812 

Connect Up to 112 Twinax Devices Over IP to a New Power9, Power8, Power7 or Any iSeries AS/400 - Local or Remote

(Click here to see other eTwinax Models)  

Please Note:  We offer the eTwinax Controller as a REFURBISHED product only.  Please call 800-597-2525 to check availability. For a new controller we recommend the I-O Corporation Xip Plus Twinax Controllers with a Standard 3-year Warranty.  Click here and you will be re-directed to the Xip Plus Twinax Controller page.


The e-Twinax Controller is a "Twinax-to-IP" controller that can be used locally to connect Twinax devices to a System i, i5, iSeries or AS/400 over any IP connection.

When used remotely, it is a replacement for SDLC Remote Controllers such as the IBM 5494 and 5394, the Perle 594e, 494e and 394, and other IBM compatible Twinax controllers from I-O Corp., Decision Data and Idea.

It will support Twinax Display Stations and Twinax Printers (SCS and IPDS).

Being it uses TN5250e as it's communication protocol, it does not require any SNA protocols. In addition, it does not require DLSw (Data Link Switching) as IBM 5494s and other Twinax Controllers do.

Technical Specifications - 4612 eTwinax Controller

Devices Supported


16 Twinax Ports - Each will support up to a maximum of 7 devices using any standard Twinax address (0, 1, 2, 3, 4, 5, 6) up to a maximum total of 112 devices/addresses on all 8 ports.


Partial List - 5251, 5291, 3179-2, 3180, 3196, 3197C, 3197D, 3476, 3477, 3486, 3487, 3488 and compatibles by Decision Data, CLI, I-O, Memorex-Telex, etc. (not all features are supported such as shared addressing, mouse support, imaging, etc.


SCS Printers - IBM 3812-1, 4214, 5219, 5224, 5225, 5256, 5262, 6262, 6400, 6500, Printronix P5000, P6000, P7000, P8000 and compatibles

IPDS Printers - IBM 3812-2, 4224, 4230, 4234, 4247, 6400, 6500, Printronix P5000, P6000, P7000, P8000 and compatibles

Other Printers - Most printers and printing devices such as thermal printers, card printers, etc. with built in Twinax interfaces or external Twinax interface protocol converters


Supports all PCs with Twinax 5250 emulation (TDLC) and BOS, CompuMaster, NLynx, IBM or IBM-compatible Emulation Cards

Host System Requirements

AS/400 Operating System

OS/400 V3R2 or higher

AS/400 Internal Features

AS/400 Ethernet LAN Connection


You can get more information by filling in the Information Request Form at the bottom of this page.

The diagrams below illustrates these Twinax Controllers fit in a local configuration as well as a remote "Cloud" configuration

Local Connection  - to provide connectivity of your local Twinax CRTs and Printers to an System i Power9, Power8, iSeries or AS/400 that does not have Twinax Workstation Controllers.  You can also use these two Twinax Controllers connected in this manner to provide full support of your Twinax Devices in a High Availability scenario.

Ordering Information

All "ADD TO CART" models are currently in stock as of .
These prices are limited to our current inventory.



Information Request Form - Click Here

Model 4612 eTwinax Controller - 112 Twinax Address/Device Support


Please call us at 800-597-2525 or 1-908-688-8100 to discuss your application or if you have any questions.



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