Product Warranty Product Registration. Since there are two ports, I build a small adapter to use the control line from the second port to provide the other level. Maintenance without Powering Down. Mac-only model USAx twin serial adapter: Tripp Lite warrants this product, if used in accordance with all applicable instructions, to be free from original defects in material and workmanship for 2 years from the date of initial purchase. Returns will be authorized in accordance with the following policies.

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If you need USB to serial adapter functionality in OSX for a native application, then the driver should be installed in OSX and not installed in the classic environment.

The initial problem was that the USB adapter provides only one control line output see pinout on the Keyspan product support page.

Keyspan USAX Manuals

We tailor our advice to your needs, including your level of knowledge and experience. This was a large enough swing to drive the Ksyspan itself, but not to power the receive level shifter in the MS Tripp Lite is a US-based manufacturer of solutions to power, connect, secure and protect equipment for Ketspan environments. Tripp Lite does not accept product returns that are not under warranty. The MS is a passive level shifter that gets its power from the control leads in the RS interface.

You must provide proof that the product is covered under warranty. Outstanding reliability, competitive pricing keyspah exceptional service have been Tripp Lite trademarks for over 95 years. This adapter provides a DB9 male plug, pinout available from the Keyspan product support page. See also the site status page.


Twin serial adapter, two Mac mini DIN 8 ports Translucent, available only a short time May be available in the channel. The Second is a list of software and compatibility with the various models. Warranties on Tripp Lite products begin on the date of your product purchase.

If required, please include the proof of purchase invoice with your return. RMA numbers are valid for 14 days from the date of issuance. I connected it through a DB9 female to DB25 male adapter cable that I happened to have, and the test program was immediately able to communicate with the LocoNet.

Email Sales Support Tel: Since there are two ports, I build a small adapter to use the control line from the second port to provide the other level. SEUSBSERDB9 The information below is intended to try and lend some clarity to this often confusing subject, and show some selected testing of the various models of Keyspan adapters with different software products.

There seem to be multiple versions of the keysspan, with slightly different model numbers, and it could be that some of them will only work to 56, baud. This did not work. Model Number Select Shipping Returns You are responsible for all transportation, insurance, duties and other similar charges for returned products.


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If you’re new to healthcare infrastructure planning, we’ll give you all the help you need. Product Warranty Product Registration. The following picture shows the transmit data levels from the Keyspan adapter.

From the largest data center to the smallest home office, Tripp Lite keypan keep your equipment running effectively and efficiently.

Tripp Lite Keyspan USB Twin Serial Adapter Usa-28 W Driver CD

If you’re new to infrastructure planning, we’ll give you all the help you need. It is important to note that to work with an X-Rite instrument, all Keyspan converters require the use keyslan a Driver supplied by Keyspan to work properly. Keyspan makes a number of USB to serial adapters. Medium JPEG x pixels.

Keyspan USA-28x Free Driver Download (Official)

Global Gateway Please select your desired language. The received data signal was getting up to 6V, marginally OK, but it was not going below ground. Repair or Replacement Tripp Lite will repair or replace the product at Tripp Lite’s option and ship the repaired or replaced product back to you at no charge.