ATOP RHG7628 Industrial Managed Ethernet Switch
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The ATOP RHG7628 is a modular rack-mount Layer 3 managed switch with up to 24 Gigabit ports on three swappable modules plus 4 × 1G or 10G SFP uplinks. Up to 24 ports supply IEEE 802.3af/at PoE/PoE+ within a 720 W budget, and MACsec modules encrypt links in hardware. Rated -40 to +70°C with EN 50155 / EN 50121-4 ticked, it serves as a station, surveillance or plant backbone.
PoE Ports and BudgetUp to 24 × PoE/PoE+ Gigabit ports, 720 W total
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Description
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 8 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 60950-1:2006 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 Static Routing, RIPv1/v2, OSPFv2, IGMP, IGMP Snooping, 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 RPS 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: conforming with Profinet CC-B v2.33 makes RHG7628 the perfect candidate for being the backbone of your Industrial automation network.
The RHG7628 Series is fully EN50155-certified to ensure reliable performance under a variety of power supply conditions, such as voltage variations, power interruptions, and supply changeovers, and it complies with essential sections of EN50121-4 for ground equipment.
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.
RHG7628 specifications
| Total Ports | Up to 28 |
|---|---|
| RJ45 Ports | Up to 24 × 10/100/1000BASE-T(X) via modules |
| Fibre (SFP) Slots | Up to 24 × 100/1000 SFP via modules, plus 4 × 1 Gbps or 4 × 10 Gbps SFP uplinks on the core |
| Module Slots | 3 |
| PoE Ports | Up to 24 × IEEE 802.3af/at; each M1 module gives 8 ports at 30 W (PoE+) or 15 W (PoE) |
| PoE Power Budget | 720 W total, 240 W per M1 module |
| MACsec | IEEE 802.1AE hardware MACsec, up to 4 secure ports (M4 RJ45 or M5 SFP module) |
| Switching Type | Layer 3 managed, modular |
| Routing | IPv4/IPv6 static routing, RIPv1/v2, OSPFv2, BGP, PIM Dense and Sparse Mode, DVMRP, VRRP |
| Redundancy Protocols | ITU-T G.8032 ERPS (under 20 ms recovery on full load), STP, RSTP, MSTP, MRP (Manager/Client), iA-Ring, iA-Chain |
| Time Synchronisation | IEEE 1588v2 hardware-based P2P/E2E transparent clock, delay within 50 ns |
| Switching Capacity | 128 Gbps, 95.24 Mpps throughput |
| Management | SNMPv1/v2c/v3, Modbus TCP |
| Security Features | IEEE 802.1X, ACLs, MACsec; security features based on IEC 62443 |
| Input Voltage | 48-57 V (PoE from 48 V); 110-220 VAC high-voltage option |
| Power Redundancy | Optional, set by core version |
| Relay Output | Yes |
| Operating Temperature | -40 to +70°C |
| Storage Temperature | -40 to +85°C |
| Housing | Fanless metal |
| Ingress Protection | IP30 |
| Mounting | Rack-mount |
| Dimensions | 440 × 44 × 340 mm |
| Certifications | EN 50155 / EN 50121-4; UL/EN/IEC 60950-1 and/or 62368-1 safety |
Specifications taken from the manufacturer datasheet.
Which version do I need?
This page covers the RHG7628 series, which is ordered as a core (main unit) plus up to three modules. ATOP's brochure lists eight Layer 3 cores: RHG7628-CPU-4SFP-R, RHG7628-CPU-4SFP, RHG7628-CPU-4SFP-MR and RHG7628-CPU-4SFP-DC with 4 × GbE SFP uplinks, and the same four suffixes on RHG7628-CPU-410GSFP with 4 × 10 GbE SFP uplinks. The suffix sets the power arrangement: -R a redundant AC supply for the CPU board, no suffix a single AC supply for the CPU board, -MR a redundant AC/DC input for the power board, -DC a redundant DC supply. Modules (RHG7X28-): M1 8 × PoE/PoE+ RJ45 (240 W per module), M2 8 × non-PoE RJ45, M3 8 × 100/1000 SFP, M4 4 × MACsec RJ45, M5 4 × MACsec SFP. The Layer 2 sibling, RHG7528, takes the same modules except M4 and M5. Pick the 410GSFP core for a 10G backbone, a -R, -MR or -DC core for redundant power, and M1 modules for camera PoE.
Typical applications for the RHG7628
- Surveillance backbones powering up to 24 IP cameras from a 720 W PoE budget
- Railway station aggregation switches (EN 50155 / EN 50121-4)
- OSPF metro or campus networks over a 10 GbE fibre backbone
- MACsec-encrypted links to business-critical departments or control rooms
- Warehouse and plant backbones in redundant ERPS rings
- Layer 3 segmentation between factory cells and site IT
Complete the stack
Products that work with this one — connect it, power it, and get it online.
RHG7628 — frequently asked questions
How many ports can the RHG7628 take?
Up to 24 Gigabit ports on three module slots, using 8-port or 4-port modules, plus 4 uplink SFP slots on the core at 1 Gbps or 10 Gbps depending on the core version, for a maximum of 28 ports.
What is the PoE power budget?
Up to 24 ports of IEEE 802.3af/at PoE/PoE+ within a 720 W total budget. Each M1 PoE module provides 8 ports at up to 30 W (PoE+) or 15 W (PoE) with a 240 W module budget, so three M1 modules reach the full 720 W.
What routing does it support?
IPv4 and IPv6 static routing, RIPv1/v2, OSPFv2, BGP, PIM Dense and Sparse Mode, DVMRP, and VRRP for routing redundancy. The Layer 2 RHG7528 uses the same chassis and modules without routing or MACsec.
Which modules provide MACsec encryption?
The M4 (4 × RJ45) and M5 (4 × SFP) modules encrypt all their ports with hardware IEEE 802.1AE MACsec, with no added latency and full Gigabit throughput. ATOP's guide lists up to 4 MACsec ports per switch, and they work only on Layer 3 cores such as the RHG7628.
How fast does the ring recover?
Under 20 ms on full load with ITU-T G.8032 ERPS. STP, RSTP, MSTP, MRP (Manager/Client), iA-Ring and iA-Chain are also supported.
What power and temperature ratings apply?
ATOP's guide lists 48-57 V input (PoE from 48 V) with a 110-220 VAC high-voltage option; power redundancy depends on the core version. Operating temperature is -40 to +70°C and storage -40 to +85°C, in a fanless IP30 metal housing.
Which certifications does it hold?
ATOP's 2025 guide ticks EN 50155 / EN 50121-4 for railway and trackside use, and UL/EN/IEC 60950-1 and/or 62368-1 safety.
How much does the ATOP RHG7628 Industrial Managed Ethernet Switch cost in the UK?
The ATOP RHG7628 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 RHG7628 Industrial Managed Ethernet Switch?
The ATOP RHG7628 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.
