RHG7528 Series

Flexible and powerful

ATOP’s high-density RHG7528 layer2-managed rackmount switch provides the flexibility to meet all kinds of requirements. Customization is made easy with 8 different switch cores, differing in power supply and uplink ports, and 3 swappable modules of different port types.

Of these, PoE ports allow both power and data transmission to wherever the Ethernet cable can reach. With 3 modules of 8 ports each, RHG7528 supports up to 24 Gigabit PoE/PoE+ (IEEE 802.3af/at) ports, so has at maximum 720W total power budget.

Rugged and resilient

Designed to work in all kinds of harsh environments, RHG7528 is EN 60950-1:2006 certified, available in 4 types of power input, fanless, and provides EMC level-3 protection. Reliable operation is guaranteed in the wide-range temperature of -40°C to +75°C. Various supported ring protocols enable self-healing ability for your network. ITU-T G.8032 ERPS Ring can even recover the network within 25 ms on full load of 250 devices. User-friendly WUI allows simple setup of basic functions like VLAN, QoS, IGMP, as well as network diagnostics via Port Mirroring.

Proven quality

The RHG7528 Series is compliant with IEC 62443-4-1 and IEC 62443-4-2 standards, which means that its development process as well as product features achieve world-class industrial network security. In addition, ACL by IP/MAC and 802.1x port access control with RADIUS filters unauthorized hosts, helping to keep your network safe.

Furthermore, the RHG7528 Series is EN 50155-certified to ensure reliable performance under a wide range of power supply conditions, and complies with essential sections of EN 50121-4 for railway ground equipment.

Consult RHG7528 datasheet to learn more about modules and configuration examples.

Environmental Limits	Value
Operating Temperature	-40°C to +75°C (-40°F to +167°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Ambient Relative Humidity	5% to 95% (Non-condensing test @ 55°C)

Physical Characteristics
Housing	IP30 SPCC metal housing
Dimension (W x H x D)	440 x 44 x 340 mm (not including screws and rack-mount kit)
Weight	5Kg (not including module but module cover only)
Installation	1U Rack-mount, Rack-mount kit included

Power
Rated Supply Voltage	Switch Core	DC version: redundant 48-57 VDC AC version: single 110-220 VAC Redundant AC version: dual 110-220 VAC Mixed AC/DC -Redundant: 1x 110-220VAC & 1x 48-57VDC
Rated Supply Voltage	PoE	2x 48-57 VDC
Input Voltage	Switch Core	DC version: redundant 48-57 VDC AC version: single 110-220 VAC Redundant AC version: dual 110-220 VAC Mixed AC/DC -Redundant: 1x 110-220VAC & 1x 48-57VDC
Input Voltage	PoE	2 x 48-57 VDC
Max. Input Current	CPU board AC/ redundant AC: 64 W@110 VAC (with input current 0.6 A) CPU board redundand DC : 32.7 W@48 VDC (with input current 0.68 A) Full load of 802.3af PoE: 370 W@45 VDC (with input current 8.4 A) Full load of 802.3at PoE+: 720 W@51 VDC (with input current 14.4 A)
Connectors	2x Lockable 5-pin terminal blocks for PoE power input (all models) 2x Lockable 3-pin terminal blocks for DC power input (DC models) 1-2x AC power input (1x for non-redundant/-MR models; 2x for -R model ) 1x Lockable 3-pin terminal blocks for DC power input (-MR model)
Relay Output	2 x Relay Output with current carrying capacity of 1A @ 24 VDC
Reverse Polarity Protection	Yes

Ethernet	Standard	-
Standards	IEEE 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 with 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 802.3ad for Port Trunk with LACP IEEE 802.3az for Energy Efficient Ethernet
Protocols	IPv4, IPv6, IGMPv1/v2/v3, IGMP snooping, GARP, GMRP, GVRP, SNMPv1/ v2c/v3, SNMP Trap, ICMP, Telnet, SSH, Client/IP-port-mapping, BootP, TFTP, SMTP, SMTP (Gmail), RMON, HTTP, HTTPS, Syslog, MRP (Manager/Client), LLDP, 802.1x, EAP, RADIUS,TACACS+, Mirror port, QoS, ACL, ITU-T G.8032 ERPS Ring, STP, RSTP, MSTP, Compatible Ring/Chain, U-Ring, NTP Server/Client, Serial Console, Modbus/TCP, IEEE 1588 PTP V1/V2, UDLD, Security, PoE, Trunk, LACP, MLD, 802.1Q VLAN, Port-Based VLAN,MAC-Based VLAN, IP-Subnet-Based VLAN, Protocol-Based VLAN, QinQ, 802.1x, ARP spoof Prevention, DHCP snooping, IP source Guard, Dynamic ARP Inspection, DHCP relay Agent
Redundancy	ITU-T G.8032 ERPS Ring, STP, RSTP, MSTP, Compatible Ring/Chain, U-Ring
Time Synchronization	Network Synchronization	NTP Server/Client, SNTP
Time Synchronization	Precision Network Synchronization	IEEE1588 PTP v1/v2 IEEE1588 Hardware-based end-to-end transparent clock
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, RFC 2674

Switch Properties	Value
Priority Queues	8
VLAN Table	4,096
MAC-Based VLAN	512
VLAN ID Range	VID 1 to 4,094
Static IGMP Groups	128
Dynamic IGMP Groups	256
MAC Table Size	16k
Packet Buffer Size	1.5 MB
Jumbo Frame	9 K (9216 Bytes)
Switching Fabric Capacity	56 Gbps (4SFP model) / 128 Gbps (410GSFP model)
Maximum throughput	41.67 Mpps (4SFP model) / 95.24 Mpps (410GSFP model)

Certification	Standard
Shock	MIL-STD-810G Method 516.5
Freefall	MIL-STD-810F Method 516.5
Vibration	MIL-STD-810F Method 514.5 C-1 & C-2
Rail Traffic	EN50155 / EN50121-4 Certified
MTBF	12.20 Years
Warranty	5 Years
RoHS	Yes

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	Enclosure Port	10(V/m), 80-1000MHz	3*
IEC 61000-4-4	EFT	AC Power Port	±2.0kV	3
IEC 61000-4-4	EFT	DC Power Port	±2.0KV	3
IEC 61000-4-4	EFT	Signal Port	±2.0KV	4
IEC 61000-4-5	Surge	AC Power Port (L-2-L)	±1.0KV	3
IEC 61000-4-5	Surge	AC Power Port (L-2-E)	±2.0KV	3
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)	±2.0KV	3
IEC 61000-4-6	CS	0.15-80MHz	10 V rms	3*
IEC 61000-4-8	PFMF	Enclosure	AC 50Hz 10A/m	3
IEC 61000-4-11	DIP	AC Power Port	-	-
* EMC level 3 on CS/RS pass conditional to the use of Shielded Ethernet Cable

Certification	Standard
Safety	UL 60950-1 2nd Ed. /CSA C22.2 No.60950-1-07 2nd Ed. / EN 60950-1 / UL 62368-1 / IEC 62368-1
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

DIMENSIONS & LAYOUT

MODULES

Optional Accessories
MODEL NAME	PART NUMBER	DESCRIPTION
AC power cable (US)	50801341G	AC power cable (SS004-240) for US region
AC power cable (EU plug)	50801351G	AC power cable (SS004-241) for EU region
SDR-240-48	50502401480001G	DIN-rail power supply; 48-55 VDC, 100-240 VAC; 240 W@48 VDC (w/ input current 5 A)
SDR-480-48	50504801480001G	DIN-rail power supply; 48-55 VDC, 100-240 VAC; 480 W@48 VDC (w/ input current 10 A)
AXFD-1314-0523	522AXFD1314001G	SFP Transceiver, 155Mbps, Multi-mode, 1310nm, 2km, -40°C to +85°C, DDMI
AXFD-1314-0553	522AXFD1314011G	SFP Transceiver, 155Mbps, Single-mode,1310nm, 30km, -40°C to +85°C, DDMI
AXGD-5854-0513	522AXGD5854001G	SFP Transceiver, 1250Mbps, 850nm, Multi-mode, 550m, 3.3V, -40°C to +85°C, DDMI
AXGD-1354-0523	522AXGD1354001G	SFP Transceiver, 1250Mbps, 1310nm, Multi-mode, 2km, 3.3V, -40°C to +85°C, DDMI
AXGD-1354-0533	522AXGD1354011G	SFP Transceiver, 1250Mbps, 1310nm, Single-mode, 10km, 3.3V, -40°C to +85°C, DDMI
AXGD-3354-0593	522AXGD3354001G	SFP Transceiver, 1250Mbps, 1310nm, Single-mode, 40km, 3.3V, -40°C to +85°C, DDMI
AXXE-5886-05B3	522AXXE5886001G	SFP Transceiver, 10Gbps Multi, 850nm, 300m, -40°C to +85°C

Module Ordering Information
MODEL NAME	PART NUMBER	Description
RHG7X28-M1	1P1RHG7X28M101G	Module with 8x Gb PoE RJ-45
RHG7X28-M2	1P1RHG7X28M201G	Module with 8x Gb RJ-45
RHG7X28-M3	1P1RHG7X28M301G	Module with 8x Gb SFP Slots

Core Switch Ordering Information
MODEL NAME	PART NUMBER	Description
		1Gb Uplink SFP	10Gb Uplink SFP	110-220 VAC input	48-57 VDC input	48-57 VDC PoE input
RHG7528-CPU-4SFP	1P1RHG7528CPU1G	4	-	1	-	2
RHG7528-CPU-4SFP-R	1P1RHG7528CPU2G	4	-	2	-	2
RHG7528-CPU-4SFP-DC	1P1RHG7528CPU3G	4	-	-	2	2
RHG7528-CPU-410GSFP	1P1RHG7528CPU4G	-	4	1	-	2
RHG7528-CPU-410GSFP-R	1P1RHG7528CPU5G	-	4	2	-	2
RHG7528-CPU-410GSFP-DC	1P1RHG7528CPU6G	-	4	-	2	2
RHG7528-CPU-4SFP-MR	1P1RHG7528CPU7G	4	-	1	1	2
RHG7528-CPU-410GSFP-MR	1P1RHG7528CPU8G	-	4	1	1	2

Utility

Version	Name	Time	Size
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

Firmware

Version	Name	Time	Size
v7.92	RHG75XX Firmware	2024-12-20	18.44 MB
More versionsLess versions
v7.70	RHG75XX Firmware	2022-10-23	17.44 MB
v7.38	RHG75XX Firmware	2021-12-06	15.95 MB
v2.88	RHG75XX Firmware	2020-12-18	14.48 MB
v2.68	RHG75XX Firmware	2020-06-18	13.73 MB
v2.20	RHG75XX Firmware	2017-12-14	13.55 MB

Datasheet

Version	Name	Time	Size	Download
v4.0	Datasheet EN	2024-10-08	1.02 MB

Manual

Version	Name	Time	Size	Download
v2.0	EHG75XX/EHG95XX/RHG75XX/EMG85XX User Manual	2022-10-21	5.59 MB

Hardware Installation Guide

Version	Name	Time	Size	Download
v2.0	RHG7528-RHG7628 Hardware Installation guide	2024-12-20	5.88 MB

MIB

Version	Name	Time	Size	Download
	RHG7528 MIB	2022-12-05	20.71 KB

STP/DXF drawings

Version	Name	Time	Size	Download
	RHG7528 STP	2024-12-20	82.7 MB

Test reports

Version	Name	Time	Size
	RHG7X28 Declarations of Conformity	2023-03-16	322.75 KB
v1.0	RHG7528-RHG7628 Certifications CB(IEC) UL	2019-11-20	10.55 MB
v1.0	RHG7528-RHG7628 Certifications CE	2019-11-20	15.16 MB
v1.0	RHG7528-RHG7628 Certifications EN50155 EN50121-4 Railway	2019-11-20	17.67 MB
v1.0	RHG7528-RHG7628 Certifications Environmental	2019-11-20	3.57 MB
v1.0	RHG7528-RHG7628 Certifications FCC	2019-11-20	5.69 MB

Registration request