Technical support is available to all users of the current version of the program who are current on their subscription.

Product Licensing

This section contains documentation and utilities to help when installing Tower Numerics software. Learn More


tnxTower General Reference
File: tnxTowerManual.pdf (5.5 MB)

tnxCable General Reference
File: tnxCableManual.pdf (490 KB)

tnxFoundation General Reference
File: tnxFoundationManual.pdf (2.2 MB)

tnxTower Release Notes

v4.5    v4.6    v4.7    v5.0    v5.1    v5.2    v5.3    v5.4    v6.0    v6.1    v7.0    v8.0    v8.1    v8.2

tnxFoundation Release Notes


Frequently Asked Questions

This FAQ covers common support and usage questions related to our products. Learn More

Contact Support

This is the best method to contact us when you have a question about a specific model. Please attach the model file to your email.

Phone: 1-781-862-0966
If you need the answer to a question, and don't need to include a model, feel free to give us a call.

Fax: 1-781-538-6463
When a problem description would be aided by a sketch, this may be a good way to send your request.