Industrial Ethernet Switches with 4 x 10/100Base-TX Ports & 1 x 100Base-FX ADAM-6521 Series Fiber Optic Port Features  Provides 4 x 10/100 Mbps Ethernet ports with RJ-45 connector  Provides 1 x 100 Mbps multi/single-mode fiber port with SC/ST connector  Supports full/half duplex flow control  Supports Integrated Loop-up engine  Supports MDI/MDI-X auto crossover  Provides broadcast storm protection  Supports +10 ~ 30 V voltage power input DC  Provides surge (EFT) protection 3,000 VDC for power line  Supports 4,000 VDC Ethernet ESD protection  Provides flexible mounting: DIN-rail, Wall, Stack  Supports operating temperatures from -10 ~ 65° C ADAM-6521 ADAM-6521/ST Introduction ADAM-6521 and ADAM-6521S are industrial-grade Ethernet switch with a fiber optic port that makes it possible to expand industrial networks fast and cost-effectively. ADAM-6521 and ADAM-6521S of 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. ADAM-6521 and ADAM-6521S are especially suited for industrial environments with Ethernet networking needs such as: semi-conductor factories, inventory control environments, assembly line and production and more. ADAM-6521 and ADAM-6521S support a wide voltage range of +10 ~ 30 V over the terminal block, and 3,000 V surge (EFT) protection to protect it from being damaged by DC DC over-voltage. A wide operating temperature range from -10 to 65° C (14 ~ 149° F), makes it functional in harsh operating environments. They also have six inclusive LED indicators which make troubleshooting the ADAM-6521 and ADAM-6521S 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. Protection Specifications  ESD (Ethernet) 4,000 VDC  Surge (EFT for power) 3,000 VDC Communications  Standard IEEE 802.3, 802.3u, 802.3x Environment  LAN 10/100Base-T, 100Base-FX  Operating Temperature -10 ~ 65° C (14 ~ 149° F)  Transmission Distance Ethernet : Up to 100 m stack : -10 ~ 60° C (14 ~ 140° F) Multi-mode Fiber : Up to 2 km  Storage Temperature -20 ~ 80° C (-4 ~ 176° F) (ADAM-6521, ADAM-6521/ST)  Operating Humidity 20 ~ 95% (non-condensing) Single-mode Fiber : Up to 15 km (ADAM-6521S)  Storage Humidity 0 ~ 95% (non-condensing)  Transmission Speed Up to 100 Mbps  MTBF 1,150,000 hrs Interface Certifications  Connectors 4 x RJ-45, 1 x SC type fiber connector (ADAM-6521,  Safety UL 60950-1, CAN/CSA-C22.2 No.60950 ADAM-6521S) or 1 x ST type fiber connector (ADAM-6521/ST)  EMC U.S.A.: FCC Part 15 CISPR 22 2-pin removable screw terminal (power) EU: EN55011, EN61000-6-4 EN55022 Class A,  LED Indicators Power, Link (100Base-FX), 100/10M (Ethernet) EN61000-3-2/3, Power EN55024, IEC61000-4-2/3/4/5/6/8/11  Power Consumption ADAM-6521, ADAM-6521/ST: Max. 3 W EN61000-6-2 ADAM-6521S: Max. 4 W  Power Input 1 x Unregulated 10 ~ 30 VDC Ordering Information Mechanism  ADAM-6521 Industrial Ethernet Switch with 4 x 10/100Base-TX  Dimensions (W x H x D) 70 x 112 x 27 mm Ports & 1 Multi-mode SC Type Fiber Optic Port  Enclosure IP30, ABS+PC with solid mounting kits  ADAM-6521/ST Industrial Ethernet Switch with 4 x 10/100Base-TX  Mounting DIN 35 rail, Wall, Stack Ports & 1 Multi-mode ST Type Fiber Optic Port  ADAM-6521S Industrial Ethernet Switch with 4 x 10/100Base-TX Ports & 1 Single-mode SC Type Fiber Optic Port Online Download www.advantech.com/products