420U

420U-ROHS

DIGITAL INPUT RELAY OUTPUT ADAPTER

420U - USB Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter (SeaI/O-420U)

Lifetime Warranty

This product has a lifetime warranty against product failure (excludes user or enviromental damage).

RoHS

This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.

CE

CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.

FCC Approved

The Federal Communications Commission (FCC) is an independent agency of the United States government that sets standards and governs the testing of conducted and radiated emissions such as EMI.

420U Digital Input Relay Output Adapter
Featured in:SeaI/O USB Adapters

Request a quote for this product

Enquiry information
Your name
Company name
Email address
Telephone

Add to quote list

Add the 420U to your quote list to send to our sales team for a quote on all your chosen products
Product
Availability
420U-ROHS

USB Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter

i Request factory lead time
Quote
View 420U peripherals
Product
Availability
TR156-ROHS

SeaI/O 100-240V AC to 24V DC @ 1A, International Wall Mount Power Supply

i Request factory lead time
Quote
CA355-ROHS

SeaLATCH USB Type A to USB Type B Device Cable, 72" in Length

i Request factory lead time
Quote
KT122

Expansion and Strap Kit - for SeaI/O, Relio R1100 Systems

i Request factory lead time
Quote
CA239-ROHS

RS-485 Interconnect Cable, 5" in Length - for SeaI/O, Relio R1100 Systems

i Request factory lead time
Quote
CA332-ROHS

SeaLATCH USB Type A to SeaLATCH USB Type B Device Cable, 72" in Length

i Request factory lead time
Quote
KT125

Universal Mounting Bracket (VESA) - for SeaI/O, Relio R1000 Systems

i Request factory lead time
Quote
KT123

Flush Mount Bracket Kit - for SeaI/O, Relio R1000 Systems

i Request factory lead time
Quote
TB-SP9-KT

Terminal Blocks - SeaI/O Spring Clamp Upgrade Kit

i Request factory lead time
Quote
* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)
Industry insight.
Computing know-how.
Impulse engineers and specialists have the industry insight and computing technology know-how to design and build solutions that excel in sophisticated and demanding environments.
Discover our Industrial Computing capabilities

420U overview

Description
Downloads

Control and monitor 16 optically isolated inputs and 8 Form C (SPDT) relay outputs via any USB connection with the SeaI/O-420U. Inputs can range from 5-30V DC, while the Form C relays switch up to 60V DC @ 2A.

Inputs and outputs are grouped in four-bit segments that each share a common for easy wiring via removable 3.5mm terminal blocks.

The SeaI/O-420U is powered from your 9-30V DC source, or select from a variety of Sealevel power supply options.

Communicate with the SeaI/O-420U using the Sealevel SeaMAX API software libraries or use any Modbus RTU compliant device. Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Windows and Linux.

Expand your I/O network with SeaI/O "N" series products. SeaI/O modules are available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality. Up to 246 additional expansion modules can be added using convenient pass-through connectors.

The SeaI/O-420U integrates a patent-pending SeaLATCH USB port, which is fully compatible with standard USB cables. When used with the included USB cable with a SeaLATCH USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection.
 

Features
  • Manufacturer : Sealevel Systems
  • Host Interface : USB Modbus RTU
  • Total Channels : 24
  • Inputs : 16 x Optically Isolated Digital Inputs
  • Input Range : 5-30V DC
  • Input Isolation : 300V
  • Outputs : 8 x Form C Relay (SPDT) Outputs
  • Max. Contact Voltage : 60V DC max.
  • Max. Contact Current : 2A max. 
  • Enclosure : Housed in rugged, attractive steel enclosure
  • I/O Connector : 4-bit segments that each share a common for easy wiring via removable 3.5mm terminal blocks
  • USB Connector : Includes CA356 - 72" USB Type A to SeaLATCH USB Type B cable
  • Other Features : Input power via terminal block or modular connector
  • Patent-pending SeaLATCH USB port provides locking connection with SeaLATCH USB cables via metal thumbscrews
  • DIN rail or table mount
  • Dimensions (WxHxD) : 7.5" x 1.3" x 5.1" 
  • Power Requirement : 9-30V DC @ 2.2W (TR108 24V DC PSU available)
  • Operating Temperature : 0 to +70C (extended temperature options available)
  • Software Support : SeaMAX supports Linux, Windows 2000, XP, Vista and Windows 7 
  • Warranty : Lifetime Warranty
SeaI/O User Manual
420U Datasheet
Enquire about the 420U
Need more info or project pricing for the 420U?
T: +44 (0)1782 337 800 • E: sales@impulse-embedded.co.uk
+44(0)1782 337 800
Happy Holidays from Impulse! Please note that we will be closed for the holiday period from 20th December, and will reopen on 2nd January. Our last shipping date of the year to customers will be 18th December 2024.
+44(0)1782 337 800
ProductsIndustrial ComputingPC-based Data AcquisitionUSB DAQ420U
+44(0)1782 337 800