Sealevel Systems
Private | |
Industry | Hardware & software |
Founded | 1986 |
Headquarters | Liberty, South Carolina, United States |
Key people | Tom O’Hanlan, Founder, CEO |
Products | Computing/HMI, serial boards, I/O boards |
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]
Awards
In 2013, the InnoVision awards nominated Sealevel Systems as a finalist for its 2013 Technology Development Award in recognition for the company's design of a next-generation emergency 9-1-1 dispatch system.[12]
Sealevel placed third among the top twenty large businesses in South Carolina at the Roaring Twenties Awards.[13]
References
- ↑ "Company Overview of Sealevel Systems, Inc.". Bloomberg Businessweek. Retrieved May 29, 2014.
- 1 2 Control Engineering, Staff. "Data Risk for RS-485 Users?". Control Engineering. Retrieved May 1, 2008.
- ↑ Salami, Joe (April 16, 1991). Gain Control Over COM3 and 4 with COMM+232. PC Magazine. p. 41.
- ↑ "Spec Sheet". PC/104 Consortium. Retrieved May 29, 2014.
- ↑ "United States Patent: O'Hanlan". United States Patent & Trademark Office. Retrieved November 18, 1997. Check date values in:
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(help) - ↑ Munro, Jenny (February 17, 2002). "Firm's products working around the world – and above it, too.". Greenville News.
- ↑ Tom O'Hanlan; Jon Titus, Sealevel Systems, Inc (August 30, 2004). Digital I/O Handbook. ISBN 0975999400. Cite uses deprecated parameter
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(help) - ↑ Senior Technical Editor. "Multi-interface serial board is RoHS-compliant". EE Times. Retrieved November 22, 2005.
- ↑ "PDA 184 to radio interface USB cable systems". FedBizOpps.gov. Retrieved September 5, 2008.
- ↑ Dick, Hughes (February 12, 2010). "Ready for What's Next". Watchdog Journal.
- ↑ Keller, John. "Navy to buy serial adapters from Sealevel Systems for AN/PRC battlefield radio systems". Military & Aerospace Electronics. Retrieved May 12, 2013.
- ↑ "Sealevel Design Nominated for InnoVision Award". Automation World. October 16, 2013.
- ↑ "Upstate Firms Named Among Best Performers". GSA Business. Retrieved May 16, 2014.