Analysis
Optically Isolated USB to RS-232/422/485 Adapters with New SeaLATCH Connector
Sealevel Systems, Inc. announces two additions to the popular SeaLINK USB serial product line, the SeaLINK+I.DIN and the SeaLINK+2I.DIN. Offering designers the choice of one or two serial ports, SeaLINK serial devices are the perfect way to connect peripherals such as barcode scanners, serial displays, and data acquisition modules to any USB port. Each DB9M serial port is configurable for RS-232, RS-422, or RS-485 via dip switches accessible through the case, and optical isolation protects the host computer from damaging voltage surges and ground loops commonly found in industrial and OEM applications. For maximum reliability, each adapter includes Sealevel’s patent-pending SeaLATCHTM locking USB connector design that prevents accidental cable disconnection.
InstFor mounting, SeaLINK serial adapters include a removable plastic clip that snaps onto 35mm DIN rail. The clip can also be attached with screws to a wall, under a counter, or to any other flat surface.
Standard SeaLINK adapters operate between 0°C to 70°C and designers can special-order extended temperature (-40°C to +85°C) adapters. Both adapters are available now and prices start at $139.
Sealevel Systems, founded in 1986, provides industrial computing solutions in addition to a variety of communications and I/O products including PCI Bus cards, Ethernet serial servers, USB serial adapters, PCMCIA cards, and PC/104 modules. Sealevel’s product line includes multi-port RS-232, RS-422/485, RS-232/422/485 multi-interface high-speed sync/async, and digital/relay I/O.
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