Transparent Clocks

Filters
Total Lan Ports▾
028
Total Sync-outs▾
06
Power input type 1▾
ACDC
3800380
Power input type 2▾
ACDC
3800380
Operational Temperature▾
-4085
Installation▾
Ingress Protection▾
PoE Power▾
Features▾
Standards & Certifications▾
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EHG9512 Series

12-Port IEC 61850-3 certified Managed Gigabit switch with 4 SFP slots, IEEE1588v2 End-to-End Transparent clock, DIN-Rail mount

  • IEC61850-3 Certified
  • 8 x 10/100/1000 BASE-T(X) ports and 4 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

The EHG9512 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 EHG9512 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 8 x 10/100/1000BASE-T(X) RJ-45 ports and  4 x 1000 BASE-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. EHG9512 support user account, password policy, and authentication interface managements functions that comply with IEC62443 standard.

The EHG9512 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 Queues 8
VLAN Table 4096
MAC-Based VLAN 512
VLAN ID Range VID 1 to 4094
Trunk Group 4
Static IGMP Groups 128
Dynamic IGMP Groups 256
MAC Table Size 16K
Packet Buffer Size 1.5 MB
Jumbo Frame 9216 Byte
Ethernet  
Standards IEEE 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
Protocols IPv4, 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
Redundancy ITU-T G.8032 ERPS, STP, RSTP, MSTP, MRP(Manager/Client), Compatible Ring/Chain, U-Ring
Automation Profiles Modbus/TCP status registers
SNMP MIB MIB II, IF-MIB, SNMPv2 MIB, BRIDGE-MIB, RMON MIB Group 1,2,3,9, RFC 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
Interfaces  
RJ45 Ports Up to 8 10/100/1000BASE-T(X) auto negotiation speed
Fiber Optic Ports Up to 4 1000BASE-X SFP slot
LED Indicators PWR1, PWR2, Alarm, Run, Ring, Ring Master, RJ-45 Link/Speed, SFP Link
Console RS232 (RJ45 connector)
Relay Output 2 x Relay outputs with current carrying capacity of 1A @ 24 VDC
DIP Switches Ring Control
Reset Button Yes
Power  
Rated Supply Voltage 24-57 VDC 100-240 VAC for AC series 110-370 VDC for HV Series
Input Voltage 19.2-62.7 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
Connector 5-Pin 5.08mm Lockable Terminal Block
Reverse Polarity Protection Yes
Physical Characteristics  
Housing IP30 SPCC, Black housing
Dimension (W x H x D) 77 x 145 x 113 mm
Weight 1,000g (AC/HV versions) / 1,200g (other)
Installation DIN-Rail , Wall mount (optional kit)
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 Humidity 5%~95% RH, 55°C (Non-condensing)
Certification Standard
Safety UL/CUL/IEC(CB) 61010-2-201
Industry Specific IEC61850-3 (Including 6.10.3 Seismic test), IEEE 1613
EMC FCC 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 2 Yes
MTBF 20 years
Standard Item Test Value Level
IEC 61000-4-2 ESD Contact Discharge ±8kV 4
IEC 61000-4-2 ESD Air Discharge ±15kV 4
IEC 61000-4-3 RS 80-1000MHz 20(V/m) 3
IEC 61000-4-3 RS 1.0-3.0GHz 10(V/m) 3
IEC 61000-4-4 EFT AC Power Port ±4.0kV @5.0kHz 4
IEC 61000-4-4 EFT DC Power Port ±4.0kV @5.0kHz 4
IEC 61000-4-4 EFT Signal Port ±4.0KV @5.0kHz 4
IEC 61000-4-5 Surge AC Power Port (L-2-L) ±2.0KV 4
IEC 61000-4-5 Surge AC Power Port (L-2-E) ±4.0KV 4
IEC 61000-4-5 Surge DC Power Port (L-2-L) ±1.0KV 3
IEC 61000-4-5 Surge DC Power Port (L-2-E) ±2.0KV 3
IEC 61000-4-5 Surge Signal Port (L-2-E) ±4.0KV 4
IEC 61000-4-6 CS AC Power Port 10V, 150kHz~80MHz, 80% AM 3
IEC 61000-4-6 CS DC Power Port 10V, 150kHz~80MHz, 80% AM 3
IEC 61000-4-6 CS Signal Port 10V, 150kHz~80MHz, 80% AM 3
IEC 61000-4-8 PFMF Enclosure 100A/m continuous 1000A/m for 1S 5 5
IEC 61000-4-11 DIP Power Port Drop 70% 3 times/S (1 Period) Drop 40% 3 times/1mS (50 Period) Drop 100% 3 times/50mS (5&50 Period) -
MODEL NAME PART NUMBER Description
EHG9512-4SFP 1P1EHG95120001G 4P*1000FX SFP; 8P*1000TX RJ45; Power input: DC
EHG9512-4SFP-HV 1P1EHG95120002G 4P*1000FX SFP; 8P*1000TX RJ45; Power input: HV
EHG9512-4SFP-AC 1P1EHG95120003G 4P*1000FX SFP; 8P*1000TX RJ45; Power input: AC
PART NUMBER Description
Wall Mount Set 70100000000056G 45.4 x 22.8 x 1.5 mm Aluminum wall mount Kit with screw
CBL-RJ45(8P)-DB9(F)-90-C 50891971G RJ45 to DB9 Female Cross Over Console Cable, 90cm
SDR-75-24 50500752240001G 75W/3.2A DIN-Rail 24VDC power supply 88~264VAC / 124~370VDC input
AXGD-5854-0513 522AXGD5854001G SFP Transceiver, 1250Mbps, 850nm, Multi-mode, 550m, 3.3V, -40~85°C, DDMI
AXGD-1354-0523 522AXGD1354001G SFP Transceiver, 1250Mbps, 1310nm, Multi-mode, 2km, 3.3V, -40~85°C, DDMI
AXGD-1354-0533 522AXGD1354011G SFP Transceiver, 1250Mbps, 1310nm, Single-mode, 10km, 3.3V, -40~85°C,DDMI
AXGD-3354-0593 522AXGD3354001G SFP Transceiver, 1250Mbps, 1310nm, Single-mode, 40km, 3.3V, -40~85°C,DDMI

Datasheet

VERSION NAME TIME SIZE DOWNLOAD
v1.9 Datasheet EN 2025-04-02 395.36 KB
1 older version

Hardware Installation Guide

VERSION NAME TIME SIZE DOWNLOAD
v1.1 EHG9508 Hardware Installation Guide 2024-12-20 6.57 MB

Manual

VERSION NAME TIME SIZE DOWNLOAD
v2.0 EHG75XX/EHG95XX/RHG75XX/EMG85XX User Manual 2022-10-21 5.59 MB
v1.7 EHG75XX/ EMG85XX/ RHG75XX/ RHG95XX/ EHG95XX User Manual 2020-12-18 5.43 MB

Firmware

VERSION NAME TIME SIZE DOWNLOAD
v8.20 EHG75XX/EHG95XX/RHG7528/RHG9528/EMG85XX Firmware 2025-05-26 19.06 MB
5 older versions
v7.92 EHG9508 Firmware 2024-12-20 18.44 MB
v2.88 EHG75XX Firmware 2020-12-18 14.48 MB
1 older version

MIB

VERSION NAME TIME SIZE DOWNLOAD
EHG75XX MIB 2022-12-05 20.71 KB

Utility

VERSION NAME TIME SIZE DOWNLOAD
v5.60 Management Utility for Windows 2021-01-18 23.65 MB
1 older version
See in NMU Network Management Utility 2020-10-19

STP/DXF drawings

VERSION NAME TIME SIZE DOWNLOAD
EHG9512 STP 2024-12-20 13.00 MB

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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