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Industrial Serial Device Servers for Serial-to-Ethernet Integration

Easily convert RS-232, RS-422, or RS-485 to ethernet with our industrial Serial Device Servers. Perfect for factory automation, remote monitoring, and legacy system integration, these devices provide a simple, reliable way to modernise older equipment. Our most popular models are available to buy online from stock, with a broader selection ready to order for more specific application needs. Whether you’re looking for a compact converter or a multi-port device server, we have a product for you.

Make it simple and painless to get an older serial enabled device or machine onto an Ethernet network. Not sure what you need? Talk to one of our technical account managers, who will be happy to help you find the right option for your setup.

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Serial Device Servers

Showing 91 of 91 Serial Device Servers items

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EKI-1526NL
1 option available
Advantech EKI-1526NL Series
16-Port Industrial Grade Network Serial Device Server – Cisco Pin-Definition
From £1,125.50 (exc. VAT)
EKI-1526
7 options available
Advantech EKI-1526 Series
16 Port RS-232/422/485 Ethernet Serial Device Server – DB9 connectors
From £1,076.00 (exc. VAT)
EKI-1522
3 options available
Advantech EKI-1522 Series
2 Port RS-232/422/485 Ethernet Serial Device Server
From £270.50 (exc. VAT)
EKI-1521
3 options available
Advantech EKI-1521 Series
1 Port RS-232/422/485 Ethernet Serial Device Server
From £243.00 (exc. VAT)
EKI-1511X
1 option available
Advantech EKI-1511X Series
1 Port RS-422/485 Serial Device Server
EKI-1511L
2 options available
Advantech EKI-1511L Series
1 Port RS-232 Serial Device Server
From £151.50 (exc. VAT)
EKI-1511
1 option available
Advantech EKI-1511 Series
1 Port RS-232/422/485 Serial Device Server
From £102.00 (exc. VAT)
4803
1 option available
Sealevel 4803 Series
8 Port RS-232/422/485 Ethernet Serial Device Server
Looking for Wireless Device Servers?
Flexible connectivity without the cables

Engineered for demanding environments, our wireless device servers offer secure and robust performance for projects where wired connections are not possible.

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4802
2 options available
Sealevel 4802 Series
8 Port RS-422/485 Ethernet Serial Device Server
4801
1 option available
Sealevel 4801 Series
8 Port RS-232 Ethernet Serial Device Server
4102
2 options available
Sealevel 4102 Series
1 Port RS-422/485 Ethernet Serial Device Server
4101
1 option available
Sealevel 4101 Series
1 Port RS-232 Ethernet Serial Device Server
4203
1 option available
Sealevel 4203 Series
2 Port RS-232/422/485 Ethernet Serial Device Server
4202
2 options available
Sealevel 4202 Series
2 Port RS-422/485 Ethernet Serial Device Server,
4201
1 option available
Sealevel 4201 Series
2 Port RS-232 Ethernet Serial Device Server
4163
1 option available
Sealevel 4163 Series
16 Port RS-232/422/485 Ethernet Serial Device Server
4162
1 option available
Sealevel 4162 Series
16 Port RS-422/485 Ethernet Serial Device Server
4161
1 option available
Sealevel 4161 Series
16 Port RS-232 Ethernet Serial Device Server
4104
1 option available
Sealevel 4104 Series
1 Port RS-232/422/485 Ethernet Serial Device Server
4103
1 option available
Sealevel 4103 Series
1 Port Isolated RS-232/422/485 Ethernet Serial Device Server
4403
1 option available
Sealevel 4403 Series
4 Port RS-232/422/485 Ethernet Serial Device Server
4402
2 options available
Sealevel 4402 Series
4 Port RS-422/485 Ethernet Serial Device Server
4401
1 option available
Sealevel 4401 Series
4 Port RS-232 Ethernet Serial Device Server
EKI-1524
3 in stock
3 options available
Advantech EKI-1524 Series
4 Port RS-232/422/485 Ethernet Serial Device Server
From £386.50 (exc. VAT)
NPort IA5450A
2 in stock
4 options available
Moxa NPort IA5450A Series
4 Port RS-232/422/485 Ethernet Serial Device Server – Surge Protection
From £538.50 (exc. VAT)
ADAM-4571L
1 option available
Advantech ADAM-4571L Series
1 Port RS-232 Ethernet Serial Device Server
From £117.00 (exc. VAT)
ADAM-4571
1 option available
Advantech ADAM-4571 Series
1 Port RS-232/422/485 Ethernet Serial Device Server
From £146.00 (exc. VAT)
ADAM-4570L
1 option available
Advantech ADAM-4570L Series
2 Port RS-232 Ethernet Serial Device Server
From £171.00 (exc. VAT)
ADAM-4570
1 option available
Advantech ADAM-4570 Series
2 Port RS-232/422/485 Ethernet Serial Device Server
From £207.00 (exc. VAT)
NPort IA-5250
4 options available
Moxa NPort IA-5250 Series
2 Port RS-232/422/485 Ethernet Serial Device Server
From £301.00 (exc. VAT)
NPort DE-311
6 in stock
1 option available
Moxa NPort DE-311 Series
1 Port RS-232/422/485 10/100Mbps Ethernet Serial Device Server
From £143.00 (exc. VAT)

How Do Serial Device Servers Extend Equipment Life?
They allow legacy machines with RS-232, RS-422 or RS-485 ports to be connected to modern IP networks. This avoids costly upgrades and keeps existing hardware in service while still benefiting from centralised control and monitoring.

Where Are They Typically Installed?
Serial device servers are used in factory automation, building management and energy networks. They make it possible to monitor sensors, controllers and meters across large sites without rewiring or replacing older devices.

What Features Make Them Suitable for Industry?
Models in this range include DIN-rail mounting options, wide power inputs and extended temperature ratings. Many also support encryption and secure management, ensuring data from critical systems is protected as it moves onto the network.