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IEC61850-3 – Substation-specific Serial Device Servers

ATOP’s Substation serial servers feature: 8 to 16 x Serial ports (RS-232/RS-485/RS-422) with or without isolation; 6 x Ethernet ports with RJ45 or SFP connector; Wide -40°C to +85°C temperature range and are enclosed in a rugged IP30-rated rack-mount housing. Available in two power options: redundant 24 48VDC input or redundant 100–330VDC / 100–240VAC, with additional relay outputs available.

  • ​IEC61850-3 Certified Substation Serial Device Server

EN50155 – Railway specific Serial Device Servers

ATOP’s railway serial servers support two serial connectivity ports (RS-232/RS-485/RS-422) and one Ethernet port with M12 connectors and are enclosed in a waterproof IP68 housing, provide 15KV ESD protection on serial signals to protect costly and sensitive equipment.

  • EN50155 Railway Waterproof Serial Device Server


Where cabling installation is an issue, ATOP’s wireless serial servers provide a rugged, reliable and affordable solid networking solution for Serial and Ethernet conversion, with one or two available ports and terminal block or DB9 connector. Selected versions feature Industrial EMC compatibility, MIMO dual-antenna features and IEEE 802.11 a/b/g/n and 3G/4G/HSPA connectivity.

  • Industrial Wireless IEEE 802.11 b/g/n Serial Device Server, DIN-Rail​
  • Industrial Wireless IEEE 802.11 a/b/g/n Serial Device Server, Industrial EMC
  • Industrial Cellular 4G LTE Serial Gateway and VPN router, Digital I/O, DIN-Rail mount


ATOP’s Serial to Ethernet Device Servers allow easy connection between RS-232/422/485 legacy devices to Ethernet through both wireless or wired connectivity. These devices are specifically designed to allow industrial devices to be directly accessible from the local network or the Internet. Our devices are from entry-level to industrial grade, support 1 - 16 serial and are available in field-mount, DIN-rail mount, and rack-mount, making them very powerful platforms for legacy devices integration with modern network infrastructures. Our industrial serial servers adhere to industrial network performance requirements, such as IEC 61850 and EN 50155.
ATOP Serial Device Servers’ versions provide programmability with SDKs on Linux-based platforms. Using the supplied Programming guide, it is easy to develop applications for specific applications.

  • Entry Level Serial Device Server, Field Mount, Metal Housing.
  • Industrial EMC Serial Server, Field Mount, Metal Housing


From entry-level Media converters to advanced smart versions, ATOP’s media converters are ideal for transitioning from copper-based to fiber-based networks. They provide reliable solutions to all conversions between single-mode or multi-mode optics to Ethernet conversion.
All products in this series are suitable for operational temperatures from -20°C to +70°C. Selected versions can operate in temperatures between -40°C and +70°C. And they come with redundant power supplies and automatic speed negotiation

  • ​Industrial Smart Ethernet to Fiber converter, Auto Speed Negotiation, DIN-Rail Mount
  • Serial to Fiber Media Converters, DIN-Rail Mount, Metal Housing
  • Compact plug-on RS-232 to RS-485/422 media converter

Call us: 07088376326, 07088376122

WhatsApp: 09027097518, 07082862657  

E-mail: info@zeryengineering.com

Advanced Serial Device Servers

ATOP’s advanced serial device servers satisfy rigorous industrial automation requirements. They feature a wider operational temperature range – from -20°C to +70°C, with selected versions featuring a range of -40°C to +85°C. In addition, they feature advanced EMC capabilities and faster CPUs to provide advanced features and faster processing times. They are more suitable for challenging environments. Selected advanced units provide additional gigabit connectivity and Power over Ethernet (PoE), so that ordinary power supplies don’t need to be relied on.

  • ​Advanced Industrial Serial Device Servers, DIN-Rail Mount
  • Advanced Serial Device Servers, Rack-Mount

Zery Engineering is the Authorized Distributor of ATOP Technologies for sales of Networking, Media Converters, Advanced Serial Devices Servers, Wireless or Cellular Serial Device Servers, Sub-Station Specific Serial Device Servers, Railway Specific Serial Device Servers and Gateway Devices in Nigeria

No 2, Ezimgbu Link Road, off Stadium Road, a.k.a Mummy B. Road Port Harcourt, Rivers State, Nigeria. 500221NG
Phone: +2347088376326 Website: www.zeryengineering.com