The Problem: The USB Interface Was Not Designed for Industrial Environments
The USB interface was originally designed to give home computer users a universal method for connecting peripherals. Over time, USB has become the most common interface and has migrated to products targeting industrial applications. However, the USB mechanical connector was designed to be quickly connected and disconnected and did not include a locking mechanism. As a result, accidental cable disconnection is the single most common point of failure with USB industrial I/O devices.
The Solution: Sealevel SeaLATCH Connectors Provide a Secure USB Connection
The thumbscrew on a SeaLATCH USB cable provides a secure metal-to-metal connection preventing accidental disconnection. SeaLATCH connectors are fully compatible with standard USB cables.
Sealevel incorporates SeaLATCH locking USB ports (shown below) on many Sealevel USB I/O devices.
Sealevel SeaLATCH Locking USB Cables
Item# CA332 – 72″ USB cable with both SeaLATCH type A and type B USB connectors
The CA332 secures both ends of the cable to devices with SeaLATCH locking USB ports and offers complete protection against accidental cable disconnection.
Item# CA356 – 72″ USB cable with SeaLATCH type B and standard type A connectors. The CA356 provides a secure connection between Sealevel products with a SeaLATCH type B USB port and legacy USB products with a standard USB type A port. This cable is included with Sealevel devices that have a SeaLATCH type B USB port.
Item# CA355 – 72″ USB cable with standard type B and SeaLATCH type A connectors. The CA355 provides a secure connection between legacy USB products with a standard USB type B port and Sealevel products with a SeaLATCH USB type A port. This optional cable is ideal for use with Sealevel’s optically isolated USB hub (Item# 270U) and Relio industrial computers incorporating the SeaLATCH USB type A port.
SeaLATCH locking USB cables are fully compatible with standard USB cables. If a SeaLATCH USB cable is lost or damaged, any standard USB cable can be used in its place.
Sealevel Products with SeaLATCH Locking USB Ports
Sealevel USB products allow you to monitor and control serial and digital I/O from any USB-equipped computer. SeaLATCH locking USB ports are integrated into a number of products including an isolated USB hub (Item# 270U), the popular SeaI/O USB family of data acquisition modules, and industrial computers. Look for SeaLATCH ports on future Sealevel USB I/O products.
• SeaLATCH Equipped USB Hubs
Easily add USB ports to a computer with Sealevel 4-port and 7-port USB hubs. Optically-isolated hubs protect computers from the damaging voltage spikes and power surges resulting from connected peripherals.
• SeaI/O SeaLATCH Equipped USB Data Acquisition Modules
Sealevel’s USB SeaI/O data acquisition modules provide powerful digital, analog, and serial expansion to any computer allowing you to add the functionality required for your particular application. Multiple units can be daisy chained using convenient pass-through connectors to create a versatile distributed control and monitoring network.
410U – 16 Isolated Inputs and 16 Reed Relay Outputs
420U – 16 Isolated Inputs and 8 Form C Relay Outputs
430U – 32 Optically Isolated Inputs
440U – 32 Reed Relay Outputs
450U – 16 Form C Relay Outputs
462U – 96 Channel TTL Digital Interface (DB78)
463U – 96 Channel TTL Digital Interface (IDC50)
470U – 16 A/D, 2 D/A, 8 24V Output, 8 Isolated Inputs Multifunction Interface
520U – 8 Isolated Inputs and 8 High-Current Form C Relay Outputs
530U – 16 Isolated Inputs / 16 Open-Collector Outputs
540U – 32 Open-Collector Outputs
570U – 8 16-bit A/D, 8 Isolated Inputs, 8 Form C Relay Outputs
• SeaI/O SeaLATCH Equipped USB Serial Expansion Modules
SeaI/O USB serial expansion modules provide an easy way to add multiple serial ports to a host via the popular SeaI/O module footprint. Serial expansion modules are offered with four or eight serial ports, and external power is fused and connected to pin 5 on each of the RJ45 connectors for conveniently powering serial peripherals. SeaI/O USB serial expansion modules are perfect for adding serial ports to a SeaI/O data acquisition “stack” or a Relio R1000 embedded solid-state industrial computer.
641U – 4-Port RS-232 RJ45 Serial Interface
647U – 4-Port RS-232, RS-485 RJ45 VersaCom Serial Interface
681U – 8-Port RS-232 RJ45 Serial Interface
687U – 8-Port RS-232, RS-485 RJ45 VersaCom Serial Interface
• SeaDAC Lite SeaLATCH Equipped USB Digital I/O Modules
SeaDAC Lite USB digital I/O modules provide a low I/O count solution in a small, rugged enclosure. Models are available with optically isolated inputs and Reed or Form C relay outputs. SeaDAC Lite modules are powered by the USB port, eliminating external power supplies.
8111 – 4 Optically Isolated Inputs / 4 Reed Relay Outputs
8112 – 4 Optically Isolated Inputs / 4 Form C Relay Outputs
8113 – 4 Optically Isolated Inputs
8114 – 4 Reed Relay Outputs
8115 – 4 Form C Relay Outputs
8126 – 32 Channel TTL Digital Interface
• SeaLINK SeaLATCH Equipped USB Serial Adapters
Offering designers the choice from one to sixteen 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. Sealevel offers the widest selection of USB serial adapters, including models with software-configurable interfaces, versatile mounting options, and DB9M or RJ45 interfaces.
2113 – Isolated 1-Port RS-232/422/485 DIN Rail Serial Adapter
2123 – 1-Port Software-Configurable RS-232/422/485 Serial Adapter
2213 – Isolated 2-Port RS-232/422/485 DIN Rail Serial Adapter
2223 – 2-Port Software-Configurable RS-232/422/485 Serial Adapter
2433 – 4-Port Software-Configurable RS-232/422/485 Serial Adapter with Hub Ports
2801 – 8-Port RS-232 Serial Adapter
2802 – 8-Port RS-422/485 Serial Adapter
2803 – 8-Port RS-232/422/485 Serial Adapter
2823 – 8-Port Software-Configurable RS-232/422/485 Serial Adapter
2833 – 8-Port Software-Configurable RS-232/422/485 Serial Adapter with Hub Ports
2161 – 16-Port RS-232 RJ45 Serial Adapter
2167 – 16-Port RS-232/485 RJ45 Serial Adapter
(Coming Soon!) Sealevel SeaLATCH Equipped USB Products
Sealevel is continuously developing new products with SeaLATCH locking USB ports. Look for SeaLATCH connectors on new industrial computers, serial adapters and digital I/O modules. Subscribe to our monthly newsletter and stay informed as we release new products.
Invitation to OEM Manufacturers to Adopt SeaLATCH USB Design
Sealevel invites OEM manufacturers to adopt SeaLATCH locking USB ports and cables in your hardware designs. If you’re interested in integrating SeaLATCH USB ports into your enclosure or purchasing SeaLATCH USB cables, contact Sealevel for more information. Custom length SeaLATCH locking USB cables are also available for OEM customers with low minimum order quantities, call +1 (864) 843-4343 (USA) for details.