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Customer Spotlight - Custom Serial Isolation Board

From Sealevel Systems, Inc.
 

 
A customer designing a new hazardous area computer system required all external connections to the host to be isolated in order to meet certification requirements. The single board computer used in the system provided the USB, RS-232, and RS-422 functionality needed by the customer, but these ports were not isolated. In a very short time frame, Sealevel designed a custom board that isolated these signals and routed them to the connectors mounted in the system enclosure via ribbon cables. A custom PCB was developed that inputs the non-isolated signals via header connectors. The signals pass through the appropriate isolation circuits on the board to output header connectors. The board is designed to fit mechanically into the space available in the customer's enclosure, and the isolated signals are brought out to USB and DB9 connectors on the enclosure's I/O panel via ribbon cables.

Products & Services
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Product Announcements
Sealevel Systems, Inc. - Embedded Software Configurable USB Serial Adapters
Product Highlights • Serial ports are software configurable for RS-232, RS-422, or RS-485 • Automatic RS-485 enable/disable • DB9M connector(s) with full modem control signals... (read more)
Sealevel Systems, Inc. - Item#5402: PCI 4-Port Synchronous Serial Interface
PCI RS-232, RS-422, RS-485, RS-530, RS-530A, V.35 Synchronous Serial Interface (uses Z85230) Designed using the popular Zilog Z85230 Enhanced Serial Communication Controller (ESCC), the board is an... (read more)
Sealevel Systems, Inc. - Adapter Kits Improve Functionality of PC/104 Stack
Product Highlights • Easier to include CompactFlash memory, 2.5" hard drives, and other common devices • CompactFlash adapter supports Type I and II memory cards and IBM Microdrives via... (read more)
B&B Electronics Manufacturing Co. Inc. - Connect Serial Devices to Your USB-only PCs
Get the extended range and multi-drop capability of RS-232 or RS-422/485 from your PC's USB port. Up to 3000 VDC optical isolation and 15kV ESD surge protection for PCs and laptops from dangerous... (read more)
Sealevel Systems, Inc. - Item# 2807: USB to 8-Port Serial Adapter
USB to RS-232, RS-485 RJ45 VersaCom Serial Interface Adapter The SeaLINK+8.VC 8-port USB to serial adapter offers an easy way to connect multiple RS-232 or RS-485 devices via a single USB port. With... (read more)
Sealevel Systems, Inc. - SeaI/O-OEM I/O Expansion Boards
SeaI/O-OEM Boards Offer Convenient Alternative to Bus-Based I/O Expansion Sealevel's SeaI/O-OEM family of bus-independent I/O boards offer choices of host connectivity and a wide range of digital,... (read more)
Sealevel Systems, Inc. - Software Configurable 4-8 Port USB Serial Adapters
Product Highlights • Each port is software configurable for RS-232, RS-422, or RS-485 • Electrical interface settings are maintained across multiple computers • Includes two USB... (read more)
Sealevel Systems, Inc. - SeaLATCH Brackets Add Locking USB Ports to Systems
Product Highlights • Add SeaLATCH® USB Type A locking port to systems • Form factors include PCI, low profile PCI, and panel mount • Connect to host via internal USB header... (read more)
Sealevel Systems, Inc. - Item# 8232: High-Current USB Digital I/O Module
USB to 8 Isolated Inputs/8 Form C High-Current Relay Outputs Digital Interface Adapter Control and monitor 8 optically isolated inputs and 8 (SPDT) high-current Form C relay outputs via any USB... (read more)
 

Topics of Interest
A leading radio broadcasting company required a reliable, small, cost-effective solution for monitoring and control at transmitter sites. In addition to the dense I/O requirements, the customer... (Read More)
A leading manufacturer of semiconductor fabrication equipment needed a way to communicate with a large number of serial devices from an industrial computer running their process control software. They... (Read More)
A manufacturer of security systems for public facilities required a 2U rackmount computer with a large amount of I/O to interface a variety of motors and sensors. The new system based on the Relio... (Read More)
A world leading developer and manufacturer of critical two-way radio communications system used by public safety and government organization such as police and fire departments needed an... (Read More)
A leading supplier of emergency notification systems used by private and governmental entities, nuclear plants, and chemical stockpile (CSEPP) sites around the country contracted Sealevel to design a... (Read More)