ATOP EHG9508 Industrial Managed Ethernet Switch
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The EHG9508 is an ATOP IEC 61850-3 certified industrial managed Gigabit switch. The EHG9508-2SFP build provides 6 × 10/100/1000BASE-T(X) RJ45 ports and 2 × 1000BASE-X SFP slots. Use it at bay level in power substations and control centres where GOOSE transmission, IEEE 1588v2 time synchronisation and sub-20 ms ring recovery are required.
Port configuration (EHG9508-2SFP)6 × 10/100/1000BASE-T(X) RJ45 + 2 × 1000BASE-X SFP (8 ports total)
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Description
The EHG9508 Series is a highly reliable Gigabit Managed Ethernet Switch. Its IEC61850-3 compliance allows it to be core part in the IEC 61850 network in power substations and control centers. The series is also certified by DNL.GL (former KEMA) to meet the IEC61850 applications and to support the transmission of GOOSE messages used for fast communication between IEDs.
The IEEE1588 Precision Time Protocol capabilities allow the deployment of EHG9508 Series in networks with stringent time Synchronization requirements. It can act as hw-assisted transparent clock providing nanosecond-accurate correction-field packet-update and as a sw-assisted boundary clock, achieving a µs-level accuracy.
The device equips 6 x 10/100/1000BASE-T(X) RJ-45 ports and 2 x 1000BASE-X SFP ports. With its high performance, it provides network redundancy self-recovery mechanisms is less than 20ms on full load that enables the user to build a reliable network through a redundant ring topology. ERPS/STP/MSTP/RSTP/MRP (Client) and many other compatible rings are supported. With a Multifunctional web dashboard, its offers intelligent features such as Quality of service (QoS), Virtual LAN (VLAN), IGMP, IGMP Snooping, Port mirroring and security. To prevent network intrusions, it is necessary to have a good accessing control mechanism that can identify, authenticate and authorize users. EHG9508 support user account, password policy, and authentication interface managements functions that comply with IEC62443 standard.
The EHG9508 Series is designed to be used in core power utilities. It provides dual redundant power inputs with Reverse Polarity Protection and two sets of relay that allow the user build up a stand-alone fault alarm system. Its wide operating temperature of -40 to 85°C and DIN-Rail mounting capacities make it suitable to be used in remote substations where harsh environment and reliability is an issue.
EHG9508 specifications
| RJ45 ports | 6 × 1000TX RJ45 (EHG9508-2SFP) |
|---|---|
| Fibre optics ports | 2 × 1000FX SFP |
| Substation certification | IEC 61850-3 (including 6.10.3 seismic test), IEEE 1613 |
| Ring recovery time | < 20 ms @ 40 switches (ERPS and Compatible Ring) |
| Redundancy | ITU-T G.8032 ERPS, STP, RSTP, MSTP, MRP (Manager/Client), Compatible Ring/Chain, U-Ring |
| Time synchronisation | IEEE 1588 PTP V1/V2, hardware-assisted End-to-End transparent clock, software-assisted boundary clock |
| MAC table size | 16K |
| VLAN | 4096-entry VLAN table, VID 1 to 4094, 512 MAC-based VLAN |
| Jumbo frame | 9216 Byte |
| Rated supply voltage | 24-57 VDC; 100-240 VAC (AC series); 110-370 VDC (HV series) |
| Input voltage | 19.2-62.7 VDC; 85-264 VAC (AC series); 110-370 VDC (HV series) |
| Input current (system) | 0.63 A @ 24 VDC; 0.16 A @ 100 VAC; 0.12 A @ 110 VDC (HV) |
| Power connector | 5-pin 5.08 mm lockable terminal block, reverse polarity protection |
| Console | RS232 (RJ45 connector) |
| Relay output | 2 relay outputs, 1 A @ 24 VDC |
| Housing | IP30 SPCC, black housing |
| Dimensions (W x H x D) | 77 × 145 × 113 mm |
| Weight | 1,000 g (AC/HV versions) / 1,200 g (other) |
| Installation | DIN-Rail; wall mount (optional kit) |
| Operating temperature | -40°C to 85°C (-40°C to 70°C for UL) |
| Ambient relative humidity | 5% to 95% RH, 55°C (non-condensing) |
| Safety | UL/CUL/IEC (CB) 61010-2-201 (all series except HV) |
| MTBF | 20 years |
Specifications taken from the manufacturer datasheet.
Which version do I need?
Three EHG9508 part numbers differ only by power input: EHG9508-2SFP (1P1EHG95080001G, DC), EHG9508-2SFP-AC (1P1EHG95080003G, 100-240 VAC) and EHG9508-2SFP-HV (1P1EHG95080002G, 110-370 VDC high voltage). All three carry 2 × 1000FX SFP and 6 × 1000TX RJ45. The datasheet notes that all series are UL 61010-2-201 certified except the HV series.
Typical applications for the EHG9508
- IEC 61850 substation automation networks
- Power utility control centres
- GOOSE messaging between IEDs
- Remote unmanned substations in harsh environments
- Redundant ring backbones with < 20 ms recovery
- Networks with stringent IEEE 1588v2 time synchronisation requirements
Complete the stack
Products that work with this one — connect it, power it, and get it online.
EHG9508 — frequently asked questions
How many ports does the EHG9508 have?
Eight in total: 6 × 1000TX RJ45 copper ports plus 2 × 1000FX SFP fibre slots. The larger EHG9512 in the same datasheet carries 8 × 1000TX RJ45 and 4 × 1000FX SFP.
Is the EHG9508 approved for power substation use?
Yes. It is IEC 61850-3 certified including the 6.10.3 seismic test and meets IEEE 1613. The datasheet states the series is certified by DNV.GL (former KEMA) to meet IEC 61850 applications and to support GOOSE messages used for fast communication between IEDs.
How fast does the ring recover after a link failure?
The datasheet specifies network redundancy self-recovery in less than 20 ms on full load, quoted as < 20 ms across 40 switches for ERPS and Compatible Ring. STP, RSTP, MSTP, MRP, Compatible Ring/Chain and U-Ring are also supported.
Which power input should I order?
There are three: DC (rated 24-57 VDC, input range 19.2-62.7 VDC), AC (100-240 VAC rated, 85-264 VAC input) and HV (110-370 VDC). Each is a separate part number. Only the HV version is excluded from the UL 61010-2-201 certification.
What temperature range can it be installed in?
-40°C to 85°C operating, or -40°C to 70°C when the UL rating must be maintained. Storage is -40°C to 85°C and ambient relative humidity 5% to 95% RH at 55°C, non-condensing.
How much does the ATOP EHG9508 Industrial Managed Ethernet Switch cost in the UK?
The ATOP EHG9508 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 EHG9508 Industrial Managed Ethernet Switch?
The ATOP EHG9508 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.








