INDUSTRIAL Rack-Mount Layer-3 MANAGED Modular Gigabit Ethernet PoE SWITCH

• Maximum 128Gbps switching capacity, 95.24Mpps throughput
• Rugged industrial design for -40~75° C harsh environment operation
• Flexible modular configuration, 3 Module-dedicated slots
• Up to 24 PoE ports, with maximum 720W of PoE power budget
• 4 x 1 Gigabit or 4 x 10 Gigabit SFP Uplink slots
• Up to 54 possible configurations in 3 power input versions
• ITU-T G.8032 ERPS Ring, RSTP, or MRP (client) redundancy
• RIP, OSPF, Static Routing, PIM supported Layer-3 switching
• PROFINET v2.33 Conformance Class B Certified, Provides GSD
Description file

Flexible: Atop’s high-density RHG7628 Managed Rack-mount switch will provide you the flexibility your application needs. You will be able to choose among 6 different Layer-3 Routing Core versions (based on power supply and uplink port configurations) and five different 4/8-Port modules and customize your device in a very simple way.

Designed for PoE, in wide temperature: RHG7628 supports up to 24 Gigabit ports in any 8 or 4-port multiple configuration. Specifically designed for bringing power through Ethernet cable virtually anywhere, a maximum output Power over Ethernet of 720W over the 24 ports is allowed (PoE/PoE+ configuration - 802.3af/at).
Available in 3 power input variants, it is EN 61010-2-201 certified and designed to handle the harshest environments. Its fanless design and EMC Level 3 protection guarantee operations within -40 and +75°C, with 24 PoE ports running full power and makes it suitable to be used for almost every application.

Powerul and versatile: RHG7628 supports IPv4 and IPv6 Static Routing, RIPv1/v2, OSPFv2, IGMP, PIM Dense Mode and Sparse Mode, DVMRP and VRRP for Routing Redundancy. Then, it embeds all features of RHG7528 (layer-2 version), allowing (through ERPS) network self-recovery down to 20ms on full load. Almost any redundant ring topology is supported, such as ITU-T G.8032 ERPS Ring, IEEE802.1D-2004 RSTP, STP, MSTP, MRP (Client), iA-Ring, iA-Chain and many compatible rings. Endless additional features are provided.

Automation and IoT ready: Being Profinet CC-B v2.33 certified and Ethernet/IP ready make RHG7628 the perfect candidate for being the backbone of your Industrial automation.

Secure: The first Industrial Managed Secure Switch! Protect your LAN from Eavesdropping and impesronation through 802.1AE MACsec. With no additional latency and 100% Gigabit Throughput guarantee, dedicated modules can provide you the internal ultimate security solution.

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Technical Specifications
Model NameRHG7628
Switch Properties
Priority Queues8
VLAN Table4096
MAC-Based VLAN512
VLAN ID RangeVID 1 to 4094
Static IGMP Groups128
Dynamic IGMP Groups256
MAC Table Size16k
Packet Buffer Size1.5 MB
Jumbo Frame9216 Byte
Switching Fabric Capacity56 Gbps (1G uplinks) / 128 Gbps (10G uplinks)
Maximum throughput41.67 Mpps (1G uplinks) / 95.24 Mpps (10G uplinks)
StandardsIEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X)
IEEE 802.3ab for 1000BaseT(X)
IEEE 802.3z for 1000BaseX
IEEE 802.3ae For 10 Gigabit Ethernet Fiber
IEEE 802.3x for Flow Control, back pressure flow 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 802.1X for Authentication
IEEE 802.1ae for MAC security (MACsec) - on RHGM4-RHGM5 only
IEEE 802.3ad for Port Trunk with LACP
IEEE 802.3az for Energy Efficient Ethernet
ProtocolsIPv4, IPv6, IGMPv1/v2/v3, IGMP Snooping, GARP, GMRP, GVRP, SNMPv1/v2c/
v3, SNMP Inform, ICMP, Telnet, SSH, DHCP Relay/Client/IP-port-mapping,
DHCP Option 66/67/82, BootP, RARP, TFTP, SMTP, SMTP (Gmail), RMON,
HTTP, HTTPS, Syslog, MRP (Client),LLDP,802.1x,EAP,RADIUS,TACACS+,Mirror port, QoS, ACL
RedundancyITU-T G.8032 ERPS Ring, STP, RSTP, MSTP, Compatible Ring/Chain, U-Ring
Time SynchronizationNetwork SynchronizationNTP Server/Client, SNTP
Precision Network
IEEE1588v1 OC/BC (Software)
IEEE1588v2 TC (Hardware) - ns accuracy
IEEE1588v2 OC/BC (Software)
Layer-3 Switching ProtocolsIPv4 Unicast static routing, IPv6 Unicast static routing, RIP v1/v2, OSPFv2,
Automation ProfilesProfinet v2.33 CC-B certified, Ethernet/IP,
Modbus/TCP device status registers provided
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, RFC 2674
Input VoltageSwitch Core:DC version: redundant 48~57 VDC
AC version: single 110~220 VAC
Redundant AC version: dual 110~220 VAC
PoE:2 x 48-57 VDC (each power input max 360W)
Input Current (Max)CPU board AC/ redundant AC: 110-220 VAC, 0.58 A Max, 64W Max
CPU board redundand DC 48-57 VDC , 0.68A Max, 32.7W Max
802.3af PoE full loading: 45-57 VDC, 8.4A Max, 370W Max
802.3at PoE+ full loading: 51-57 VDC, 14.4A Max, 720W Max
Connectors2 x Lockable 5-pin terminal blocks for PoE power input (all vers.)
2 x Lockable 3-pin terminal blocks for DC power input (DC vers.)
1-2 x AC power inlet (non-redundant / -R version)
Reverse Polarity ProtectionYes
Physical Characteristics
HousingIP30 SPCC metal housing
Dimension (W x H x D)440 x 44 x 340 mm (not including screws and rack-mount kit)
Weight5Kg (not including module but module cover only)
Installation1U Rack-mount, Rack-mount kit included
Environmental Limits
Operating Temperature-40°C~75°C (-40°F~167°F)
Storage Temperature-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity5%~95%, 55°C (Non-condensing)
Switching Modules
Technical Specifications
Description8-Port RJ45 PoE module8-Port RJ45 module8-Port SFP module
Model NameRHG7X28-M1RHG7X28-M2RHG7X28-M3
PoE Power per port15.4/30W (802.3af/at)--
Total Max Power240 W--
Number of ports888
Port speed10/100/1000 BASE-T(X)10/100/1000 BASE-T(X)100/1000 BASE-F(X)
InterfaceRJ45RJ45SFP slot
Dimensions104.5 x 171.6 x 39.5mm104.5 x 171.6 x 39.5mm104.5 x 171.6 x 39.5mm
Weight550 g500 g450 g
Fixing2 x screws (included)2 x screws (included)2 x screws (included)
Secure Modules
Technical Specifications
Description4-Port RJ45 MACsec Secure module4-Port SFP MACsec Secure module
Model NameRHG7X28-M4RHG7X28-M3
PoE Power per port--
Total Max Power--
Number of ports44
Port speed10/100/1000 BASE-T(X)100/1000 BASE-F(X)
InterfaceRJ45SFP slot
Dimensions104.5 x 171.6 x 39.5mm104.5 x 171.6 x 39.5mm
Weight550 g500 g
Fixing2 x screws (included)2 x screws (included)
Regulatory Approvals
SafetyEN 61010-2-201
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
IEC 61000-4-2ESDContact Discharge±8KV4
Air Discharge±15KV4
IEC 61000-4-3RSEnclosure Port10(V/m), 80-1000MHz3 *
IEC 61000-4-4EFTAC Power Port±2.0KV3
DC Power Port±2.0KV3
Signal Port±2.0KV4
IEC 61000-4-5SurgeAC Power PortLine-to Line±1.0KV3
AC Power PortLine-to Earth±2.0KV3
DC Power PortLine-to Line±1.0KV3
DC Power PortLine-to Earth±2.0KV3
Signal PortLine-to Earth±2.0KV3
IEC 61000-4-6CS0.15-80MHz10V rms3 *
IEC 61000-4-8PFMF(Enclosure)AC 50Hz 10A/m3
IEC 61000-4-11DIPAC Power Port  
ShockMIL-STD-810G Method 516.5
DropMIL-STD-810F Method 516.5
VibrationMIL-STD-810F Method 514.5 C-1 & C-2
Warranty5 years

* EMC level 3 on CS/RS pass conditional to the use of Shielded Ethernet Cable

Main core switch ordering information
Model NamePart NumberSlotsUplink portsPower supply
RHG7628-CPU-4GSFP1P1RHG7628CPU1G34 x 1 Gb SFPSingle 110~220 VAC + Dual 48~57 VDC PoE
RHG7628-CPU-4GSFP-R1P1RHG7628CPU2G34 x 1 Gb SFPDual 110~220 VAC + Dual 48~57 VDC for PoE
RHG7628-CPU-4GSPF-DC1P1RHG7628CPU3G34 x 1 Gb SFPDual 24~48 VDC +Dual 48~57 VDC for PoE
RHG7628-CPU-410GSFP1P1RHG7528CPU4G34 x 10 Gb SFPSingle 110~220 VAC + Dual 48~57 VDC PoE
RHG7628-CPU-410GSFP-R1P1RHG7628CPU5G34 x 10 Gb SFPDual 110~220 VAC + Dual 48~57 VDC for PoE
RHG7628-CPU-410GSPF-DC1P1RHG7628CPU6G34 x 10 Gb SFPDual 24~48 VDC +Dual 48~57 VDC for PoE

Modules ordering information
Model NamePart NumberRJ45 PoE portsRJ45 non-PoE protsSFP portsRJ45 MACsecSFP MACsec
Optional Accessories
Model namePart NumberDescription
AC power cable (US)50801041GAC power cable (US plug)
AC power cable (EU)50801051GAC power cable (EU plug)
SDR-75-2450500752240001GDIN RAIL POWER SUPPLY / T;AC 88~264V to 24VDC 3.2A;75W
SDR-240-4850502401480001GDIN RAIL POWER SUPPLY / T;AC 100~240V to 48V~55V DC 5A;240W
SDR-480-4850504801480001GDIN RAIL POWER SUPPLY / T;AC 100~240V to 48V~55V DC 10A;480W
LM38-A3S-TI-N50708051GSFP Transceiver, 155Mbps, 1310nmFP, Multi-mode, 2km, 3.3V, -40~85°C
LS38-A3S-TI-N50709431GSFP Transceiver, 155Mbps, 1310nmFP, Single-mode, 30km, 3.3V, -40~85°C
LM28-C3S-TI-N50708031GSFP Transceiver, 1250Mbps, 850nmVCSEL, Multi-mode, 550m, 3.3V, -20~85°C
LM38-C3S-TI-N50709411GSFP Transceiver, 1250Mbps, 1310nmFP, Multi-mode, 2km, 3.3V, -40~85°C
LS38-C3S-TI-N50709391GSFP Transceiver, 1250Mbps, 1310nmFP, Single-mode, 10km, 3.3V, -40~85°C
LS38-C3L-TI-N50709441GSFP Transceiver, 1250Mbps, 1310nmDFB, Single-mode, 30km, 3.3V, -40~85°C
LM28-H3S-TI-N50710061GSFP Transceiver, 10.3Gbps, 850nmFP, Multi-mode, 10km, 3.3V, -10~85°C
LS38-H3S-TI-N50710071GSFP Transceiver, 10.3Gbps, 1310nmFP, Single-mode, 10km, 3.3V, -40~85°C
LS48-H3L-TI-N50710081GSFP Transceiver, 10.3Gbps, 1550nmFP, Single-mode, 40km, 3.3V, -40~85°C
LS48-H3U-TI50710091GSFP Transceiver, 10.3Gbps, 1550nmFP, Single-mode, 80km, 3.3V, -40~85°C

Products Brochure

V1.5 CA_RHG7628 1.45MB


V1.2 EHG76XX User Manual 5.95MB

Quick Start Guide

V1.1 RHG7X28 Hardware Installation 5.73MB


V3.18 RHG7628 F/W 15.62MB

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