ATOP EHG7504 - 4 Port Industrial Managed Gigabit PoE Switch, Profinet certified, DIN-Rail Mount: 4 PoE


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MPN: 1P1EHG75040003G

Manufacturer: Atop Technologies Inc.

Delivery: Ships within 8-10 weeks
Qualifies for Free shipping to the US

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Product Information

Product Description

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The EHG7504 switches are industrial grade managed Gigabit Ethernet PoE Switches. They are designed to provide a highly reliable, fault-tolerant, extremely fast network connection in a harsh environment. The EHG7504 equips two terminal blocks to provide dual redundant power inputs with Reverse Polarity Protection and allows field engineers to build up a stand-alone fault alarm system. 

These switches are UL, CE, FCC and NEMA TS-2 certified, allowing the use in Traffic Control Applications.

Within its compact DIN-Rail housing design, there are different port combinations from which to choose.

  • RJ45 port
  • SFP port, 1000 BASE-X
  • PoE RJ45 port, IEEE 802.3af/at compliant

The PoE option provides up to 120W power budget.


This is the right choice if you want to set up a reliable network environment with its intelligent features and keep equipment connected all the time, even in case of temporary network breakdowns through RSTP, ERPS Rings and MRP (client) redundancy.

Enhancement of an existing network

With multiple Compatible Rings also supported, these switches have a painless enhancement of an existing infrastructure that doesn’t jeopardize network Topology and existing working pattern. To prevent network intrusions, it is necessary to have a good accessing control mechanism that can identify, authenticate and authorize users. EHG7504 switches support user account, password policy, and authentication interface managements functions that comply with IEC62443 standard.

Automation & IoT ready

Being Profinet CC-B v2.33 certified, these switches are Automation and IoT ready. Profinet allows wired and wireless combinations for an array of connectivity options, providing a more effective backbone for your automation operations.

EN50155-certified for railway applications & EN50121-4 for ground equipment

Having undergone environmental testing to ensure reliable performance under a variety of power supply conditions, such as voltage variations, power interruptions, and supply changeovers, these switches are fully EN50155-certified for today’s demanding railway applications, as well as complying with essential sections of EN50121-4 for ground equipment.


Order Summary



RJ45 (POE)


Manufacturer Part # (MPN)

0 1P1EHG75040003G


  • Up to 8 10/100/1000 BASE-T(X) RJ45 ports or 1000 BASE-X SFP slots 
  • Up to 8 802.3af/ 802.3at Power over Ethernet ports, with maximum 30W PoE power per port and maximum 240 W device power budget 
  • Powerful Switching Platform, supporting Redundancy advanced Protocols, such as ERPS, RSTP, STP, MRP (Manager/Client) and compatible rings 
  • Profinet CC-B v2.33 certified and GSDML file provided 
  • IEEE 1588v2 Precision Time Protocol Hw-Based Transparent clock 
  • CE/FCC/UL and NEMA TS-2 Certified for Traffic Control Applications 
  • EN50155 / EN50121-4 certified for Railway and Trackside applications 
  • Works from -20°C~70°C • Security features based on IEC62443-4-2

Documents and Drivers


ATOP EHG7504 Series - 4 Port Industrial Managed Gigabit PoE Switch Datasheet

ATOP EHG7504 Series - 4 Port Industrial Managed Gigabit PoE Switch User Manual

ATOP EHG7504 Series - 4 Port Industrial Managed Gigabit PoE Switch Hardware Installation Guide

ATOP Industrial Ethernet Switches Product Selection Guide



5-Pin 5.08mm Lockable Terminal Block


54 x 113 x 145 mm

High Power Relay Output

2 relay outputs with current carrying capacity of 1A @ 24 VDC


IP30 aluminum housing


5% to 95%, 55°C (Non-condensing)

Input Current

  • Max. 1.4A @ 9VDC (without PoE)
  • Max. 2.9A @ 45VDC (Support up to 8 ports at 15.4W per PoE port)
  • Max. 5.0A @ 51VDC (Support up to 8 ports at 30W per PoE port)

Input Voltage

  • 9-57 VDC for Non-PoE models
  • 45-57 VDC for 802.3af mode
  • 51-57 VDC for 802.3at mode


DIN-Rail , Wall mount (optional kit)


1P1EHG75040002G, 1P1EHG75040003G, 1P1EHG75040004G, 1P1EHG75040005G, 1P1EHG75040001G


  • RJ45 Ports: Up to 8 10/100/1000BASE-T(X) auto negotiation speed
  • Fiber Optics Ports: Up to 4 1000BASE-X SFP slot

Power Consumption

  • Max 12.6 W @9 VDC (without PoE)
  • Max 130.5 W @45VDC (802.3af, with 15.4W PoE per port for 8 ports)
  • Max 255 W @51VDC (802.3at, with 30W PoE per port for 8 ports)

Product Weight



IPv4, IPv6, IGMPv1/v2/v3, IGMP Snooping, GARP, GMRP, GVRP, SNMPv1/v2c/ v3, SNMP Inform, ICMP, Telnet, SSH, Client/IP-port-mapping, BootP, TFTP, SMTP, SMTP (Gmail), RMON, HTTP, HTTPS, Syslog, MRP (Manager/Client), LLDP, 802.1x, EAP,RADIUS, TACACS+, Mirror port, QoS, ACL, ITU-T G.8032 ERPS Ring, STP, RSTP, MSTP, Compatible Ring/Chain, U-Ring, NTP Server/ Client, Serial Console,Modbus/TCP, IEEE 1588 PTP V1/V2,UDLD, Security, PoE, Trunk, LACP, MLD, 802.1Q VLAN, Port-Based VLAN, MAC-Based VLAN, IP-Subnet-Based VLAN, Protocol-Based VLAN, QinQ, 802.1x, ARP spoof Prevention, DHCP snooping, IP source Guard, Dynamic ARP Inspection, Profinet, DHCP relay Agent, Voice VLAN, sFlow, PoE continue

Temperature Range

  • Operating: -20°C to +70°C (-4°F to +158°F)
  • Storage: -40°C to +85°C (-40°F to +185°F)

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