The EHG9608 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 meets 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 EHG9608 Series in networks with stringent time Synchronization requirements. It can act as hw-assisted End-to-End transparent clock providing nanosecond-accurate correction-field packet-update and as a sw-assisted boundary clock. The device equips up to 8x10/100/1000BASE-T(X) RJ-45 ports and up to 4 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 (Manager/ 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. The EHG9608 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.   APPLICATION    EHG9608 is a product that specially fits with power station and substation application. This product usually plays an important role at the bay level. With full gigabit ports, EHG9608 can help to transmit a bunch of data from process level to upper level. EHG9608 also supports IEEE 1588v2 HW-assisted End-to-End Transparent clock to deliver the precise time in power station or substation.

Ethernet
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 (Manager/ Client), LLDP, IEEE 1588 PTP V1/V2, IEEE 1588 Hardware-Assisted End-to-End Transparent Clock and Software- assisted Boundary Clock, 802.1x, EAP, RADIUS, TACACS+, Mirror port, QoS, ACL, Serial Console, U-Ring, STP, RSTP, MSTP, Redundancy Compatible Ring, DHCP Snooping, ARP Spoof Prevention, Dynamic ARP Inspection, MLD, UDLD, IP Source Guard, sFlow
Layer-3 Protocols	Routing: IPv4 Unicast static routing, RIP v1/v2, OSPFv2, Multicast: IGMPv1/v2/v3, DVMRP, PIM-DM, PIM-SM, PIM-SSM Routing Redundancy: VRRP (Virtual Router Redundancy Protocol)
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 8x10/100/1000BASE-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 to 185°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
Shock Drop Vibration	MIL-STD-810G Method 516.5 MIL-STD-810F Method 516.5 MIL-STD-810F Method 514.5 C-1 & C-2
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	5
IEC 61000-4-8	PFMF	Enclosure	1000A/m for 1S	5
IEC 61000-4-11	DIP	AC Power Port	Drop 70% 3 times/S (1 Period) Drop 40% 3 times/1mS (50 Period) Drop 100% 3 times/50mS (5&50 Period)	-

Certification
Warranty	5 Years
MTBF	20 Years

MODEL NAME	PART NUMBER	Description
EHG9608-2SFP	1P1EHG96080001G	2P*1000FX SFP; 6P*1000TX RJ45; Power Input: DC
EHG9608-2SFP-HV	1P1EHG96080002G	2P*1000FX SFP; 6P*1000TX RJ45; Power Input: HV
EHG9608-2SFP-AC	1P1EHG96080003G	2P*1000FX SFP; 6P*1000TX RJ45; Power Input: AC

MODEL NAME	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
v1.1	Datasheet EN	2025-01-06	793.80 KB
v0.7	Datasheet EN	2023-05-08	652.71 KB
v0.4	Datasheet EN	2021-06-28	799.38 KB
2 older versions

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
v2.4	EHG76XX/ EHG96XX/ RHG76XX/ EMG86XX User Manual	2023-05-29	10.46 MB
v2.3	EHG76XX/ EHG96XX/ RHG76XX/ EMG86XX User Manual	2022-10-31	10.28 MB
1 older version
v2.2	EHG76XX/ RHG76XX/ RHG96XX/ EHG96XX User Manual	2022-02-09	10.34 MB
v2.1	EHG9608_12 User Manual	2021-06-01	9.96 MB

Firmware

VERSION	NAME	TIME	SIZE	DOWNLOAD
v6.66	EHG76XX Firmware	2025-05-01	18.80 MB
v6.56	EHG76XX-RHG76XX Firmware	2024-08-26	17.84 MB
v6.50	EHG76XX-RHG76XX Firmware	2024-03-04	17.88 MB
v6.10	EHG76XX-RHG76XX Firmware	2022-02-09	17.31 MB
2 older versions
v4.66	EHG96XX Firmware	2021-06-01	17.15 MB

MIB

VERSION	NAME	TIME	SIZE	DOWNLOAD
	EHG96XX MIB	2022-12-05	20.21 KB

Utility

VERSION	NAME	TIME	SIZE	DOWNLOAD
v5.60	Management Utility for Windows	2021-01-18	23.65 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