Advantech ADAM-6521 /ST

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Advantech ADAM-6521 /ST

Unmanaged Industrial Switch with 4 10/100 Mbps Ethernet Ports & 1 Multi-mode ST Type Fiber Optic Port



The Advantech ADAM-6521/ST is an industrial-grade unmanaged Ethernet switch with a fiber optic port that makes it possible to expand industrial networks fast and cost-effectively. ADAM-6521/ST has 1 fiber port and 4-RJ-45 ports. With fiber optics, you can prevent noise interfering with your system and implement transmission distances up to 15 km. Advantech ADAM-6521/ST supports a wide voltage range of +10 ~ 30 VDC over the terminal block, and 3,000 VDC surge protection (EFT) to protect it from being damaged by over-voltage. A wide operating temperature range from -10 to 65° C (14 ~ 149° F), makes it functional in harsh operating environments. Six inclusive LED indicators make troubleshooting easier. Each port has a pair of LEDs that indicate link status and transmission speed. This function conveniently informs users of any collisions, the link status, power failure and data receipts for immediate on-site diagnostics.


Weitere Informationen


CE, FCC, UL/cUL 60950-1

Ethernet Connectors
1 x ST type fiber connector

DIN 35 rail, Wall, Stack


Ports Number


Transmission Distance
Ethernet up to 100 m, Fiber up to 2 km

Transmission Speed
UP to 100 Mbps

Power Supply

Power Input
1 x Unregulated 10 ~ 30 VDC

Power Connector
2-pin removable screw terminal

Operating System

Temperature (Operating)
-10 ~ 70°C (14 ~ 158°F) I21 Stack: -10~ 60°C (-40 ~ 140°F)

Ordering Information

Part Number Description
ADAM-6521/ST 5-port Switch w/1 M-Mode ST Type Fiber Port


Dokumentation PDF Advantech ADAM-6521 /ST DataSheet (67.2 kB)

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