420S

OUTPUT ADAPTER

SeaI/O RS-232 Adapters  •  Sealevel Serial I/O Adapters  •  Serial
420S Output Adapter
420S - RS-232 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter (SeaI/O-420S)
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.
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.
This product has a lifetime warranty against product failure (excludes user or enviromental damage).
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.
From
£211

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1 off price**
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420S-ROHS
RS-232 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter
£211
Peripheral information
Stock
Lead time*
1 off price**
Request qty / trade pricing**
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Expansion and Strap Kit - for SeaI/O, Relio R1100 Systems
2 in stock
£10
The Digital I/O Handbook - A Practical Guide to Industrial Input and Output Applications (Free with Qualifying Sealevel Digital I/O Products)
1 in stock
90-265V AC to 5V/12V DC 165W Power Supply - (Requires Power Cord)
£260
RS-485 Interconnect Cable, 5" in Length - for SeaI/O, Relio R1100 Systems
£3
DB9 Female to RJ45 Modular Adapter (RS-232 Pinout) for SeaI/O Modules
£12
Universal Mounting Bracket (VESA) - for SeaI/O, Relio R1000 Systems
£80
The Digital I/O Handbook - A Practical Guide to Industrial Input and Output Applications
£23
Flush Mount Bracket Kit - for SeaI/O, Relio R1000 Systems
£19
DIN Rail Mounting Clips - for SeaI/O, R1100, 4103
£11
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 420S to UK Mainland on orders over £150 (exc. VAT and delivery) when purchasing online - excludes Northern Ireland, Isle of Man, Isle of Wight, Scottish Islands and the Channel Islands.

* 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)

420S overview

  • Manufacturer : Sealevel Systems
  • Interface : RS-232 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
  • Accessories : Item# KT119 – RS-232 DB9/RJ45 Kit, includes a DB9F to RJ45 adapter with RS-232 pinout (DB109) and a 7’ CAT5 patch cable (CA246) for connecting SeaI/O modules to both Sealevel and standard RS-232 serial ports.
  • Other Features : Input power via terminal block or modular connector
  • 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
Control and monitor 16 optically isolated inputs and 8 Form C (SPDT) relay outputs with the SeaI/O-420S. Inputs can range from 5-30V DC, while the Form C relays switch up to 60V DC @ 2A.

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

Communicate with the SeaI/O-420S 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 operating systems.

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.

Impulse is a leading UK distributor of Sealevel products and can supply you the 420S along with a wide range of industrial computing and communication products.

For more information about the 420S, please contact our technical sales team on +44 (0)1782 337 800, or alternatively submit an enquiry.
OPC-UA
OPC-UA is supported by many of our communication and I/O products. If you are interested but not quite sure how to implement OPC-UA into your factory then get in touch.
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