ATOP EMG8508 Industrial Managed Ethernet Switch
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The ATOP EMG8508 is an IP67 Layer 2 managed Gigabit switch with 8 × 10/100/1000 M12 ports, of which up to 8 deliver IEEE 802.3af/at PoE at up to 30 W each within a 240 W budget. Built for rolling stock and trackside use, it is EN 50155 and EN 50121-4 compliant, runs from -40 to +75°C, and takes 12-57 VDC or 50-145 VDC on redundant inputs.
Ingress Protection and PoEIP67 aluminium housing, up to 8 × PoE M12 ports, 240 W budget
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Description
ATOP’s EMG8508 IP67-rated Railway-compliant Ethernet switch is the best solution for providing high-speed Gigabit connectivity in track-side or on-board Railway applications. Its rugged, aluminum enclosure can effectively protect the Switch core in any environment.
The 8-M12 Connectors Gigabit ports can supply up to 30W of PoE Power (802.3af or 802.3at) to your PoE device providing an overall maximum budget of 240W. This makes EMG8508 the ideal solution for on-board or off-board surveillance by simplifying the wiring where it’s difficult, risky and expensive to introduce new elements.
The embedded redundant-power supply input provides a reliable and failure-proof safety mechanism to minimize down-times. EMG8508 comes in either redundant Low-Voltage DC power input (12~57 VDC, 47~57 VDC for PoE models) or in redundant High-Voltage DC power input (50~145 VDC). Each power module, including a Relay-output alarm, uses a S-coding M12 connector that makes EMG8508 ideal and simple for engineers setting up a Fault-Alarm System.
To prevent network intrusions, it is necessary to have a good accessing control mechanism that can identify, authenticate and authorize users. EMG8508 supports user account, password policy, and authentication interface managements functions that comply with IEC62443 standard.
Its IP67 housing protection, combined with a wide operating temperature of -40 to 70°C and wall mounting capacities make it suitable to most Railway applications in harsh environments or industrial field applications.
EMG8508 specifications
| Total Ports | 8 |
|---|---|
| M12 Ports | 8 × 10/100/1000BASE-T(X), M12 X-coded |
| Fibre (SFP) Slots | None |
| PoE Ports | Up to 8, IEEE 802.3af/at, up to 30 W per port |
| PoE Power Budget | Up to 240 W |
| Switching Type | Layer 2 managed, all-Gigabit |
| Redundancy Protocols | STP, RSTP, MSTP, ITU-T G.8032 ERPS, MRP (Master/Client); ERPS recovery under 20 ms |
| Time Synchronisation | IEEE 1588v2 hardware-based E2E transparent clock |
| Management | SNMPv1/v2c/v3; Modbus TCP |
| Network Features | IEEE 802.1Q VLAN, IEEE 802.1p QoS, IEEE 802.1ad LACP trunking, IGMP v1/v2/v3 snooping, DHCP option 66/67/82, GARP/GVRP/GMRP, IPv4/IPv6 |
| Security Features | User account, password policy and authentication interface management (security features based on IEC 62443); IEEE 802.1X; ACLs |
| Input Voltage | 12-57 VDC (non-PoE); 45-57 VDC for 802.3af and 51-57 VDC for 802.3at (PoE versions); 50-145 VDC (-HV version) |
| Power Redundancy | Redundant power inputs on M12 connectors |
| Relay Output | Relay-output alarm on each power input connector |
| Operating Temperature | -40 to +75°C |
| Storage Temperature | -40 to +85°C |
| Housing | Aluminium |
| Ingress Protection | IP67 |
| Mounting | Field mount (wall) |
| Dimensions | 216 × 232 × 72 mm (L × W × H) |
| Certifications | EN 50155 / EN 50121-4 (railway); UL 61010-2-201; EN 60950-1 and/or EN 62368-1 |
Specifications taken from the manufacturer datasheet.
Which version do I need?
This page covers the EMG8508 series. ATOP lists four codes: EMG8508 (8 × Gigabit M12, no PoE, 12-57 VDC), EMG8508-4PoE (4 PoE and 4 non-PoE M12 ports), EMG8508-8PoE (all 8 M12 ports with PoE) and EMG8508-HV (8 × non-PoE M12 with a 50-145 VDC high-voltage input). PoE versions need 45-57 VDC for 802.3af or 51-57 VDC for 802.3at. Choose the -HV version for a 50-145 VDC supply; it has no PoE.
Typical applications for the EMG8508
- On-board CCTV on rolling stock, powering IP cameras over M12 PoE
- Passenger information and infotainment system networks
- Intercom and wireless access points in carriages
- Trackside and station equipment exposed to weather (IP67, EN 50121-4)
- Carriage access switches in an ERPS ring with sub-20 ms recovery
- Outdoor field-mounted networks from -40 to +75°C
Complete the stack
Products that work with this one — connect it, power it, and get it online.
EMG8508 — frequently asked questions
What connectors does the EMG8508 use?
Eight Gigabit Ethernet ports on M12 connectors (X-coded) in an IP67 aluminium housing, so it can be mounted outside a cabinet. Power inputs and the relay alarm are also on M12 connectors.
How much PoE can it supply?
Up to 30 W per port under IEEE 802.3af/at, with a 240 W total budget on the EMG8508-8PoE. The 4PoE version powers 4 of the 8 ports.
What power input does it need?
12-57 VDC on the non-PoE model, 45-57 VDC for 802.3af or 51-57 VDC for 802.3at on PoE models, or 50-145 VDC on the EMG8508-HV. Inputs are redundant.
Is it suitable for railway use?
Yes. It is EN 50155 and EN 50121-4 compliant for rolling stock and trackside equipment, and also carries UL 61010-2-201.
What is the difference between the EMG8508 and the EMG8510?
The EMG8510 keeps the same 8 × Gigabit M12 ports and adds 2 × 1000BASE-X SFP slots for a fibre uplink. Otherwise the housing, PoE options and power inputs are the same.
What is the difference between the EMG8508 and the EMG8608?
The EMG8608 has the same 8 × Gigabit M12 port layout and power options but is Layer 3 managed, adding IP routing. The EMG8508 is Layer 2.
Which redundancy protocols does it support?
STP, RSTP, MSTP, ITU-T G.8032 ERPS and MRP (Master/Client), with ERPS recovery under 20 ms.
How much does the ATOP EMG8508 Industrial Managed Ethernet Switch cost in the UK?
The ATOP EMG8508 Industrial Managed Ethernet Switch is supplied to order and priced on application. Send a quote request and we confirm the price and lead time in writing, usually the same working day. No account is needed. Indiott is a UK distributor invoicing with VAT (PSI Technologies Ltd, VAT GB 730 2340 83).
What is the lead time and delivery cost for the ATOP EMG8508 Industrial Managed Ethernet Switch?
The ATOP EMG8508 Industrial Managed Ethernet Switch is supplied to order. We confirm the lead time in writing with your quote, before you commit to anything. UK delivery is a flat £14.25 per order ex VAT, whatever the weight or how many items you order. We ship to GB and the EU and provide a VAT invoice with every order.
