ADAM-6521 - 4 Port 10/100BaseTX, 1 Port 100BaseFX Fibre Optic Unmanaged Industrial Ethernet Switch
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.
These products come with a standard two year manufacturer warranty.
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ADAM-6521 Unmanaged Industrial Ethernet Switch
Featured in:Advantech Unmanaged Industrial Ethernet SwitchesAdvantech Ethernet Switches
3 ADAM-6521 versions available
Free delivery to UK mainland addresses

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ADAM-6521 with multi mode SC type fibre optic port
ADAM-6521 with single mode SC type fibre optic port
ADAM-6521 with multi mode ST type fibre optic port
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the ADAM-6521 to UK Mainland on orders over £50 (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)

ADAM-6521 overview

  • 4x 10/100Mbps Ethernet ports with RJ45 connector
  • 1x 100Mbps multi/single-mode fibre port with SC/ST type connector
  • Supports full/half duplex flow control
  • Supports MDI/MDI-X auto crossover
  • Provides broadcast storm protection
  • Supports 10V to 30V DC voltage power input
  • Provides surge (EFT) protection 3000V DC for power line
  • Supports 4000V DC Ethernet ESD protection
  • Supports operating temperatures from -10°C to +65°C
The ADAM-6521 is a 5-port industrial-grade switch with Ethernet connectivity with four 10/100BaseTX 10Mbps to 100Mbps transfer rates (auto-negotiation) and one 100BaseFX fibre optic port. Just like any other product in the ADAM family, the ADAM-6521 can be mounted in three different ways, DIN-rail, wall and stack.

Solid industrial-grade design assures reliable operation in common application areas like semi-conductor factories, inventory control environments, assembly lines, manufacturing and many more. All modules support a wide voltage range of +10V to +30V DC over the terminal block, and 3000V DC surge (EFT) protection ensures that over-voltage is of no concern.

The wide operating temperature of the ADAM-6521 is from -10°C to +65°C which permits them to be functional in harsh environments. The eight inclusive LED indicators make troubleshooting of the modules easier. Each port has a pair of LEDs that indicate link status and port activities. This easily informs users of any collisions, the link status, power failure and data receipts for immediate on-site diagnosis.
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