2803

USB TO SERIAL ADAPTER

Sealevel SeaLINK USB to Serial Adapters  •  Sealevel USB Devices  •  USB
2803 USB to Serial Adapter
2803 - USB to 8 Port RS-232/422/485 (DB9) Serial Adapter (SeaLINK+8)
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.
IN STOCK NEXT DAY DELIVERY
From
£301

Add to cart / quote list

Buy the 2803 online or add it to your quote list to send to our sales team for a quote on all your chosen products
Version information
Stock
Lead time*
1 off price**
Request qty / trade pricing**
Buy now
2803-ROHS
USB to 8 Port RS-232/422/485 (DB9) Serial Adapter
3 in stock
Next day
£301
Peripheral information
Stock
Lead time*
1 off price**
Request qty / trade pricing**
Buy now
DB9 Female to DB9 Male Extension Cable, 72" in Length
No stock
£12
DB9 Female (RS-422) to DB25 Male (RS-530) Cable, 10" in Length
No stock
£12
DB9 Female to DB25 Male Standard RS-232 Modem Cable, 72" in Length
No stock
£10
Terminal Block - DB9 Female to 9 Screw Terminals
No stock
£24
Terminal Block Kit - TB05 + CA127 Cable
No stock
£34
Terminal Block - Dual DB9 Female to 18 Screw Terminals
No stock
£30
Terminal Block Kit - TB06 + (2) CA127 Cables
No stock
£52
DB9 Female (RS-422) to DB9 Female (Opto 22 Optomux) Converter
No stock
£12
DB9 Female to RJ45 Modular Adapter
No stock
£5
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 2803 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)

2803 overview

  • Manufacturer : Sealevel Systems
  • Interface : USB to RS-232/422/485 DB9 Adapter
  • Ports : 8
  • UART : High Speed USB/UART with 128-byte Tx FIFO and 384-byte Rx FIFO
  • Hot Swappable
  • All modem control signals implemented
  • Automatic RS-485 enable/disable
  • Serial and USB activity LEDs
  • Max. Data Rate : 921.6K bps
  • Max. Data Distance : up to 4000ft
  • Connectors : 8 x DB9M with 72" USB Cable (CA179)
  • Power : Powered by USB connection
  • Current Requirements : +5V @ 500mA
  • Operating Temperature : 0 to +70C
  • Software : SeaCOM software drivers included
  • Warranty : Lifetime Warranty
The 2803 USB serial I/O adapter provides eight RS-232, RS-422, or RS-485 serial ports for USB connectivity to legacy or non-USB compliant devices.

Each port is individually configurable for RS-232, RS-422, or RS-485. Simply install the included software and connect the 2803 serial interface adapter to your USB port.

The device is immediately recognized by the system. Now your non-USB peripherals can have the same connection simplicity and ease of use as USB aware peripherals.

Need a helping hand?
Our networking FAEs are trained to the highest level, so not only do we sell products but we can show you how to configure and troubleshoot using best practice. If you want to know more give us a try.
Ask us a question
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.
Enquire now
Network configuration support
Do you need some help to pre-configure your switches, maybe you need help setting up security or using network management software. Tell us what you need and we will gladly help.
Enquire now

Related products

Customers who bought the 2803 also bought these items
Enquire about the 2803
Need more info or project pricing for the 2803?
T: +44 (0)1782 337 800 • E: SALES@IMPULSE-EMBEDDED.CO.UK
We want you to be the first to know about new products, technology solutions and exclusive industry news. To stay connected and receive marketing communications, select YES. (Remember, you are free to unsubscribe at any time.)

 
LIVE CHAT OFFLINE (OPEN UK 8:30AM-5:00PM MON - FRI)
Follow us
Your Favourites
Wherever you see this heart symbol around the site, you can click to add things like products, articles and more to your favourites.
Build a quote list
Are you after more than one product, or need quantity pricing? Add products to your quote list and send it through to our team in one go!