Company:Sealevel Systems
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| Type | Private |
|---|---|
| Industry | Hardware & software |
| Founded | 1986 |
| Headquarters | Liberty, South Carolina , |
Key people | Tom O’Hanlan, Founder, CEO |
| Products | Computing/HMI, serial boards, I/O boards |
| Not Reported | |
| Website | www |
Sealevel Systems, Inc. is a privately held manufacturer headquartered in Liberty, South Carolina,[1] which develops computer circuit I/O boards.
Company overview
Sealevel Systems was founded by Tom O’Hanlan and his wife Susan, in 1986.[2]
In 1991 the company released a dual port serial card that allowed users to set its I/O addresses to any two COM ports.[3] In 1994, Sealevel developed the RS-485 auto-enabled circuit. The circuit eliminated the need to control the RS-485 transceiver-enable signal via software and removed the risk of communications error due to bus communications.[2][4]
In 1997, O’Hanlan was granted a patent for a communication device that transmitted asynchronous formatted data synchronously.[5] The company produced the communications card used for positioning the Space Shuttle’s robotic arm in 2002.[6] Tom O’Hanlan and technical author Jon Titus co-authored a book, The Digital I/O Handbook, in 2004.[7]
In 2005, Sealevel Systems released the industry’s first RoHS-compliant serial I/O board.[8] In 2008, Sealevel won a defense contract for a USB/serial port cable with a heavily encased circuit board.[9] The cable allows soldiers in the field to link laptops to AN/PRC-117F Multiband Manpack Radio (MBMMR) tactical radios, manufactured by any company, and transmit data, including GPS maps, images, coordinates and IM-type communications via radio signal instead of by satellite. It took seven years for the company to perfect the technology.[10] In 2013 the company was awarded a sole-source contract for Naval Air Systems Command for this cable.[11]
References
- ↑ "Company Overview of Sealevel Systems, Inc.". Bloomberg Businessweek. http://investing.businessweek.com/research/stocks/private/snapshot.asp?privcapId=7982078. Retrieved May 29, 2014.
- ↑ 2.0 2.1 Control Engineering, Staff. "Data Risk for RS-485 Users?". Control Engineering. http://www.controleng.com/industry-news/single-article/data-risk-for-rs-485-users/cf9b719cc57bf782bcf3d868d5aee8e2.html. Retrieved May 1, 2008.
- ↑ Salami, Joe (April 16, 1991). Gain Control Over COM3 and 4 with COMM+232. PC Magazine. pp. 41. https://books.google.com/books?id=_OEk1QOJYw0C&dq=sealevel+first+serial+baord+for+PC&pg=PT60.
- ↑ "Spec Sheet". PC/104 Consortium. http://www.pc104.org/product.php?id=608. Retrieved May 29, 2014.
- ↑ "United States Patent: O'Hanlan". United States Patent & Trademark Office. November 18, 1997. http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=%22OHanlan+Thomas%22.INNM.&OS=IN/%22OHanlan+Thomas%22&RS=IN/%22OHanlan+Thomas%22.
- ↑ Munro, Jenny (February 17, 2002). "Firm's products working around the world – and above it, too.". Greenville News.
- ↑ Tom O'Hanlan; Jon Titus (August 30, 2004). Digital I/O Handbook. Sealevel Systems. ISBN 0975999400.
- ↑ Senior Technical Editor. "Multi-interface serial board is RoHS-compliant". EE Times. http://www.eetimes.com/document.asp?doc_id=1298293. Retrieved November 22, 2005.
- ↑ "PDA 184 to radio interface USB cable systems". FedBizOpps.gov. https://www.fbo.gov/index?s=opportunity&mode=form&id=738455907baa394044a2863c02e310a1&tab=core&_cview=0. Retrieved September 5, 2008.
- ↑ Dick, Hughes (February 12, 2010). "Ready for What's Next". Watchdog Journal. http://www.journalwatchdog.com/business/522-ready-for-whats-next.
- ↑ Keller, John. "Navy to buy serial adapters from Sealevel Systems for AN/PRC battlefield radio systems". Military & Aerospace Electronics. http://www.militaryaerospace.com/articles/2013/05/Sealevel-radio-adapters.html. Retrieved May 12, 2013.
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