EHG9508 Series

8-Port IEC 61850-3 certified Managed Gigabit switch with 2 SFP slots, IEEE1588v2 End-to-End Transparent clock, DIN-Rail mount

  • IEC61850-3 Certified
  • 6 x 10/100/1000 BASE-T(X) ports and 2 x 1000 BASE-X SFP ports
  • IEEE1588v2 Precision Time Protocol support, with nanosecond-accurate
    Hardware-based E2E Transparent clock and Software Boundary Clock
  • ERPS and Compatible Ring (recovery time < 20ms @ 40 switches),
    STP/RSTP/MSTP/MRP (Client) for network redundancy
  • Remote management over Web browser, Telnet, Serial console, Utility
  • Security features based on IEC62443-4-2
EHG9508 Series
EHG9508 Series
EHG9508 Series
EHG9508 Series
EHG9508 Series
EHG9508 Series

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.

Switch Properties 
Priority Queues8
VLAN Table4096
MAC-Based VLAN512
VLAN ID RangeVID 1 to 4094
Trunk Group4
Static IGMP Groups128
Dynamic IGMP Groups256
MAC Table Size16K
Packet Buffer Size1.5 MB
Jumbo Frame9216 Byte
StandardsIEEE 802.3 for 10BASE-T
IEEE 802.3u for 100BASE-T(X)
IEEE 802.3ab for 1000BASE-T
IEEE 802.3z for 1000BASE-X
IEEE 802.3x for Flow Control/ Back pressure control
IEEE 802.1d-2004 for Spanning Tree Protocol
IEEE 802.1w for Rapid Spanning Tree Protocol
IEEE 802.1s for Multiple Spanning Tree Protocol
IEEE 802.1q for VLAN Tagging
IEEE 802.1p for Class of Service
IEEE 8021x for Authentication
ProtocolsIPv4, IPv6, IGMPv1/v2/v3, IGMP Snooping, GARP, GMRP, GVRP, SNMPv1/v2c/v3, SNMP Inform, ICMP, Telnet, SSH, DHCP Server/Relay/Client, DHCP Option 66/67/82, BootP, RARP, TFTP, NTP Server/Client, SNTP, SMTP, SMTP (Gmail), RMON, HTTP, HTTPS, Syslog, MRP (Client), LLDP, IEEE 1588 PTP V1/V2, IEEE 1588 Hardware-Assisted Transparent Clock and Software-assisted Boundary Clock, MRP (Client), 802.1x, EAP, RADIUS, TACACS+, Mirror port, QoS, ACL, Serial Console, U-Ring, STP, RSTP, MSTP, Redundancy Compatible Ring, Voice VLAN, sFlow
RedundancyITU-T G.8032 ERPS, STP, RSTP, MSTP, MRP(Manager/Client), Compatible Ring/Chain, U-Ring
Automation ProfilesModbus/TCP status registers
RFC 1157, RFC 1213, RFC 1215, RFC 1493, RFC 1643, RFC 1757, RFC 2011,
RFC 2012, RFC 2013, RFC 2233, RFC 2571, RFC 2742, RFC 2819, RFC 2863,
RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415
Physical Characteristics  
HousingIP30 SPCC, Black housing
Dimension (W x H x D)77 x 145 x 113 mm
Weight1,000g (AC/HV versions) / 1,200g (other)
InstallationDIN-Rail , Wall mount (optional kit)
RJ45 PortsUp to 8 10/100/1000BASE-T(X) auto negotiation speed
Fiber Optic PortsUp to 4 1000BASE-X SFP slot
LED IndicatorsPWR1, PWR2, Alarm, Run, Ring, Ring Master, RJ-45 Link/Speed, SFP Link
ConsoleRS232 (RJ45 connector)
Relay Output2 x Relay outputs with current carrying capacity of 1A @ 24 VDC
DIP SwitchesRing Control
Reset ButtonYes
Rated Supply Voltage24-57 VDC
100-240 VAC for AC series
110-370 VDC for HV Series
Input Voltage19.2-62.7 VDC
85-264 VAC for AC series
110-370 VDC for HV Series
Input Current (System)0.63A @ 24 VDC
0.16A @ 100 VAC for AC series
0.12A @ 110 VDC for HV series
Connector5-Pin 5.08mm Lockable Terminal Block
Reverse Polarity ProtectionYes
Environmental Limits 
Operating Temperature-40°C to 85°C (-40°F to185°F) / -40°C to 70°C (-40°F to 158°F) For UL
Storage Temperature-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity5%~95% RH, 55°C (Non-condensing)
SafetyUL/CUL/IEC(CB) 61010-2-201
Industry SpecificIEC61850-3 (Including 6.10.3 Seismic test), IEEE 1613
EMCFCC Part 15, Subpart B, Class A
EN 55032, EN 55024, EN 61000-3-2, EN 61000-3-3, EN 61000-6-2, EN 61000-6-4,
RoHS 2Yes
MTBF20 years
IEC 61000-4-2ESDContact Discharge±8kV4
IEC 61000-4-2ESDAir Discharge±15kV4
IEC 61000-4-3RS80-1000MHz
IEC 61000-4-3RS1.0-3.0GHz10(V/m)3
IEC 61000-4-4EFTAC Power Port±4.0kV @5.0kHz4
IEC 61000-4-4EFTDC Power Port±4.0kV @5.0kHz4
IEC 61000-4-4EFTSignal Port±4.0KV @5.0kHz4
IEC 61000-4-5SurgeAC Power Port (L-2-L)±2.0KV4
IEC 61000-4-5SurgeAC Power Port (L-2-E)±4.0KV4
IEC 61000-4-5SurgeDC Power Port (L-2-L)±1.0KV3
IEC 61000-4-5SurgeDC Power Port (L-2-E)±2.0KV3
IEC 61000-4-5SurgeSignal Port (L-2-E)±4.0KV4
IEC 61000-4-6CSAC Power Port10V, 150kHz~80MHz, 80% AM 3
IEC 61000-4-6CSDC Power Port
10V, 150kHz~80MHz, 80% AM 3
IEC 61000-4-6CSSignal Port10V, 150kHz~80MHz, 80% AM3
IEC 61000-4-8PFMFEnclosure100A/m continuous
1000A/m for 1S
IEC 61000-4-11DIPPower PortDrop 70% 3 times/S (1 Period)
Drop 40% 3 times/1mS (50 Period)
Drop 100% 3 times/50mS (5&50
PART NUMBERDescription 
Wall Mount Set70100000000056G45.4 x 22.8 x 1.5 mm Aluminum wall mount Kit with screw
CBL-RJ45(8P)-DB9(F)-90-C50891971GRJ45 to DB9 Female Cross Over Console Cable, 90cm
SDR-75-2450500752240001G75W/3.2A DIN-Rail 24VDC power supply 88~264VAC / 124~370VDC input
AXGD-5854-0513522AXGD5854001GSFP Transceiver, 1250Mbps, 850nm, Multi-mode, 550m, 3.3V, -40~85°C, DDMI
AXGD-1354-0523522AXGD1354001GSFP Transceiver, 1250Mbps, 1310nm, Multi-mode, 2km, 3.3V, -40~85°C, DDMI
AXGD-1354-0533522AXGD1354011GSFP Transceiver, 1250Mbps, 1310nm, Single-mode, 10km, 3.3V, -40~85°C,DDMI
AXGD-3354-0593522AXGD3354001GSFP Transceiver, 1250Mbps, 1310nm, Single-mode, 40km, 3.3V, -40~85°C,DDMI


Version Name Time Size Download
v5.60 Management Utility for Windows 2021-01-18 23.65 MB
See in NMU Network Management Utility 2020-10-20 0 B
v5.20 Management Utility for Windows 2016-10-28 16.21 MB


Version Name Time Size Download
v7.70 EHG95XX Firmware 2022-10-24 17.44 MB
v7.38 EHG95XX Firmware 2021-12-06 15.95 MB
v2.88 EHG95XX Firmware 2020-12-21 14.48 MB
v2.68 EHG95XX Firmware 2020-06-18 13.73 MB
v2.20 EHG95XX Firmware 2017-12-14 13.55 MB


Version Name Time Size Download
v1.7 Datasheet EN 2024-03-11 371.44 KB
v1.5 Datasheet EN 2022-10-24 387.27 KB
v1.3 Datasheet EN 2020-12-21 646.59 KB
v1.2 Datasheet EN 2019-10-18 487.23 KB
v1.1 Datasheet EN 2019-01-22 486.71 KB
v1.6 Datasheet EN 2023-09-28 366.34 KB
v1.0 Datasheet EN 2017-09-25 499.23 KB


Version Name Time Size Download
v2.0 EHG75XX/ EMG85XX/ RHG75XX/ EHG95XX User Manual 2022-10-24 5.59 MB
v1.7 EHG75XX/ EMG85XX/ RHG75XX/ RHG95XX/ EHG95XX User Manual 2020-12-21 5.43 MB
v1.6 EHG75XX/ EMG85XX/ RHG75XX/ RHG95XX/ EHG95XX User Manual 2020-06-18 5.29 MB
v1.5 EHG75XX/ EMG85XX/ RHG75XX/ RHG95XX/ EHG95XX User Manual 2020-01-21 5.3 MB
v1.4 EHG75XX/ EMG85XX/ RHG75XX/ RHG95XX/ EHG95XX User Manual 2017-09-28 5.41 MB

Hardware Installation Guide

Version Name Time Size Download
v0.1 EHG9508-EHG9512 Hardware Installation Guide 2016-09-06 8.53 MB


Version Name Time Size Download
EHG95XX MIB 2022-12-05 20.71 KB

Test reports

Version Name Time Size Download
EHG9508 Declarations of Conformity 2023-03-16 346.17 KB
v1.0 EHG9508-EHG9512 Certifications CE 2019-11-20 4.35 MB
v1.0 EHG9508-EHG9512 Certifications compact CB(IEC) UL 2019-11-20 236.16 KB
v1.0 EHG9508-EHG9512 Certifications FCC 2019-11-20 1.63 MB
v1.0 EHG9508-EHG9512 Certifications IEC61850-3 IEEE1613 Power 2019-11-20 6.54 MB
v1.0 EHG9508-EHG9512 Certifications KEMA 2019-11-20 12.93 MB

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