4803

All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 4803 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)

4803 overview

Manufacturer : Sealevel
Interface : Ethernet to RS-232/422/485 Server
LAN : Ethernet 10/100BaseT (autosense)
Ports : 4
Max. Data Rate : 230.4K bps
Max. Data Distance : up to 4000ft
Other Features : Appears as virtual COM ports to host machine
All modem control signals implemented
Automatic RS-485 enable/disable
Built-in watchdog/reset circuit for fault tolerance
Connectors : 4 x DB9M
Power Requirements : +5V @ 1A with 5V DC mains adapter included
Operating Temperature : 0 to +70C
Software : SeaCOM software drivers included
Warranty : Lifetime Warranty

The 4803 Ethernet to serial server is the easiest way to connect RS-232, RS-422, or RS-485 serial devices to your Ethernet network.

SeaLINK products use industry standard RFC 2217 TCP/IP protocol for maximizing compatibility with the widest range of applications and devices.

The included software works under a wide variety of operating systems including Windows 98/ME/NT/2000/XP, and the 4803's serial ports appear as virtual COM ports to the host machine.

Standard serial operating calls are transparently redirected to the 4803, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software.

Serial tunneling is also supported, allowing two native serial devices to communicate over a network. Alternatively, raw data socket mode is supported, eliminating the need for a driver. Each port can be individually configured as RS-232, RS-422, or RS-485.

4803 User Manual

4803 Datasheet

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 4803 also bought these items

EDS-208A

8 Port Unmanaged Industrial Ethernet Switch

7201

2 Port RS-232/422/485 PCI Serial Card (Ultra-COMM+2.PCI)

7804

8 Port RS-232/422/485 PCI Serial Card (Ultra COMM+8.PCI)

580E

Ethernet Modbus TCP to 32 Isolated Dry-Contact Inputs (SeaI/O-580E)

Enquire about the 4803

Need more info or project pricing for the 4803?

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.)

YES! Please keep me updated
No. I do not wish to receive updates