Overview
IES7521-24GE4TF-AC: 24-Port Gigabit Layer 3 Managed Industrial Switch with 10G Uplinks – The High-Density Core for Mission-Critical Networks
Features
Enterprise-Grade L2/L3 Management – Intelligent Traffic Control for 24-Port Industrial Core Networks
The IES7521-24GE4TF-AC delivers comprehensive Layer 2 and Layer 3 management capabilities engineered specifically for high-density core and aggregation deployments. With 24 ports and 4 10G uplinks, this switch provides the intelligent traffic control, network segmentation, and gateway services required to transform a collection of connected devices into a coherent, secure, and high-performance industrial backbone—eliminating the need for external routers while providing enterprise-grade functionality .
4 x 10G SFP+ Uplink Ports – 40Gbps High-Speed Backbone for 24-Port Industrial Core Networks
The IES7521-24GE4TF-AC is equipped with 4 independent 10G SFP+ uplink ports supporting 1G/2.5G/10G multi-rate auto-negotiation , delivering carrier-grade fiber connectivity for bandwidth-intensive industrial applications. As a 24-port rack-mount core switch, these high-speed uplinks serve as the central nervous system for factory-wide networks, campus backbones, and large-scale surveillance systems, providing the 40Gbps aggregate throughput necessary to eliminate bottlenecks and ensure wire-speed performance across all connected devices .
ERPS Ring Protection – Sub-50ms Network Redundancy for 24-Port Industrial Core Networks
The IES7521-24GE4TF-AC integrates Ethernet Ring Protection Switching (ERPS) compliant with ITU-T G.8032, delivering carrier-grade network resilience for large-scale industrial deployments. As a 24-port rack-mount core switch, this device can serve as the ring master for complex topologies, ensuring that a single fiber cut or switch failure never disrupts mission-critical operations—with guaranteed sub-50ms recovery that's 40× faster than RSTP and invisible to connected devices .
Industrial-Grade Ruggedization – IP40 Enclosure & -40°C to 85°C Operation for 24-Port Core Reliability
The IES7521-24GE4TF-AC is engineered to thrive where commercial-grade switches fail, featuring a rugged IP40-rated metal enclosure and extended temperature range of -40°C to 85°C. As a 24-port rack-mount core switch, it faces unique environmental challenges that demand system-level industrial hardening—from unheated control rooms to semi-outdoor equipment enclosures, from steel mills to Arctic pipelines. This switch delivers uncompromising reliability in the very environments where your core network must never fail.
±8KV Contact / ±15KV Air ESD Protection – Industrial-Grade Surge Immunity for 24-Port Core Networks
The IES7521-24GE4TF-AC is engineered with enterprise-grade electrostatic discharge (ESD) protection, rated at ±8KV for contact discharge and ±15KV for air discharge across all 24 Gigabit ports and 4 10G SFP+ uplink interfaces. This industrial-hardened protection meets the IEC 61000-4-2 Level 4 standard , the highest level of ESD immunity defined by international standards. For a 24-port rack-mount core switch, this protection is not merely a specification—it's a critical reliability feature that ensures your network backbone remains operational when commercial-grade equipment would fail catastrophically.
19-Inch Rack-Mountable Design – Professional-Grade Installation for 24-Port Core Networks
The IES7521-24GE4TF-AC features a standard 19-inch rack-mountable form factor, compliant with EIA-310-D specifications, purpose-built for centralized deployment in industrial control rooms, data centers, and network operations centers (NOCs) . As a 24-port high-density core switch, its rack-mount design delivers space efficiency, professional cable management, and long-term mechanical stability—essential for core network infrastructure that must remain operational for decades .
Dual AC Redundant Power Inputs (100-240V) – Zero-Downtime Power for 24-Port Core Networks
The IES7521-24GE4TF-AC is engineered for mission-critical power reliability with dual independent AC power inputs supporting a universal voltage range of 100-240VAC. As a 24-port rack-mount core switch, power redundancy is not optional—it's essential. This switch eliminates the #1 cause of network downtime by providing automatic failover between two power sources, ensuring your factory backbone, campus core, or surveillance hub remains operational 24/7/365, even during power distribution failures or maintenance events .
Connectivity Solutions
Layer 3 Managed 24 Port Gigabit Industrial Switch with 4-10G SFP+ Uplink Connection Solution

Layer 3 Managed 24 Port Gigabit Industrial Switch with 4-10G SFP+ Uplink Ring Network Connection Solution

Specification
Technical Specifications :
IE7521-24GE4TF-AC10M/100M/1G RJ45 copper ports :
241G/2.5G/10G SFP+ (fiber) ports :
4Console Port (For config ) :
YesUSB port :
Yes (for firmware and config upload/ download)Performance Specification :
*Packet buffer memory :
12 MbForwarding modes :
Store-and-forwardBandwidth :
128 GbpsPacket forwarding rate :
77.38MppsMAC address database size :
16KJumbo frame support :
12KL2 Services - VLANs :
*IEEE 802.1Q VLAN tagging :
YesQinQ VLAN tagging :
YesIP-based VLANs :
YesMAC-based VLANs :
YesProtocol-based VLAN :
YesVoice VLAN :
YesVLAN mapping :
YesL2 Services - Availability :
*Storm control :
Yes (Broadcast, multicast, unknown unicast)IEEE 802.3ad - LAGs (LACP) :
YesIEEE 802.3x :
YesRing (ERPS,complies with G.8032) :
Yes, Recovery time < 50msIEEE 802.1D Spanning Tree Protocol :
YesIEEE 802.1w Rapid Spanning Tree Protocol :
YesIEEE 802.1s Multiple Spanning Tree Protocol :
YesLayer 2 DHCP Relay :
YesL2 Services - Multicast Filtering :
YesIGMP snooping (v1, v2 and v3) :
YesMLD snooping support (v1 and v2) :
YesIGMP snooping querier (v2) :
YesMLD snooping querier (v1) :
YesMulticast VLAN Registration (MVR) :
YesL3 Services - DHCP :
*DHCP client :
YesDHCP snooping :
YesDHCP Server :
YesL3 Services - Routing :
*IPv4 static routing :
100IPv6 static routing :
100VLAN routing :
YesRIP V1/V2 :
YesOSPF V2 :
YesNumber of IP VLAN interfaces :
YesPolicy routing :
YesVRRP :
YesLink Aggregation :
*Manual LAG :
Yes# of LAGs / # of members in each LAG :
8 LAGs with max 8 members in each LAGNetwork Monitoring and Discovery Services :
*802.1ab LLDP :
YesSNMP :
v1, v2c, v3RMON group 1,2,3,9 :
YesNetwork Security :
YesIEEE 802.1x :
YesRADIUS accounting :
YesAccess Control Lists (ACLs) :
YesIP-based ACLs (IPv4 and IPv6) :
L2 / L3 / L4MAC-based ACLs :
YesTCP/UDP-based ACLs :
YesControl MAC # static entries :
48Port-based security by locked MAC addresses :
YesDynamic ARP inspection :
YesDoS protection :
YesDoS attacks prevention :
YesNetwork storm protection, DoS :
YesQuality of Service (QoS) :
*Port-based rate limiting :
Yes ingress and egressPort-based QoS :
YesSupport for IPv6 fields :
YesDiffServ QoS :
Yes ingressIEEE 802.1p COS :
YesDestination MAC and IP :
YesIPv4 and v6 DSCP :
YesTCP/UDP-based :
YesWeighted Round Robin (WRR) :
YesStrict priority queue technology :
YesIEEE Network Protocols :
*Protocols :
• IEEE 802.3 Ethernet • IEEE 802.3u 100BASE-T • IEEE 802.3ab 1000BASE-T • IEEE 802.3z Gigabit Ethernet 1000BASE-SX/LX • IEEE 802.3bz 2.5GBASE-T • IEEE 802.3ae 10GBASE-T • IEEE 802.3az Energy Efficient Ethernet (EEE) • IEEE 802.3ad Trunking (LACP)Protocols 2 :
• IEEE 802.3x Full-Duplex Flow Control • IEEE 802.1Q VLAN Tagging • IEEE 802.1AB LLDP with ANSI/TIA-1057 (LLDP-MED) • IEEE 802.1p Class of Service • IEEE 802.1D (STP) • IEEE 802.1s (MSTP) • IEEE 802.1w (RSTP) • ITU-T G.8032 (ERPS)Management, Monitoring & Troubleshooting :
*Password management :
YesAccess control via RADIUS and TACACS+ :
YesIPv6 management :
YesSNMP v1/v2c/v3 :
YesPort mirroring :
Yes ingress and egressMany-to-one port mirroring :
28Cable test utility :
YesTLS/HTTPS Web-based access (version) :
Yes (v1.2)File transfers (uploads, downloads) :
TFTP / HTTPHTTP upload/download (firmware) :
YesSyslog (RFC 3164) :
YesLEDs :
YesPer port :
Speed, Link, Activity; PoE in different modePer device :
PowerPhysical Specifications :
*Dimensions (Width * Depth * Height) :
440 x 290 x 48 mm (17.32 x 11.42 x 1.89 in)Weight :
4.8 kg (10.58 lb)Power Requirements :
AC100~260V 50/60Hz (Dual power input)Max power :
24W (worst case, all ports used, full PoE, line-rate traffic) (Watts)Iddle power consumption :
18W (all ports link-down standby) (Watts)Energy Efficient Ethernet (EEE) :
Yes (deactivated by default)Fan :
FanlessEnvironmental Specifications :
*Operating Temperature :
-30° to 785°C (-22° to 167°F)Operating Humidity :
95% maximum relative humidity (RH), non-condensingOperating Altitude :
10,000 ft (3,000 m) maximumStorage Temperature :
-40° to 85°C (-40° to 185°F)Storage Humidity (relative) :
95% maximum relative humidity, non-condensingStorage Altitude :
10,000 ft (3,000 m) maximumExecutive Standard & Protection :
*Lightning Protection :
*IEC61000-4-3 (RS) :
10V/m (80~1000MHz)FCC Part 15/CISPR22 (EN55022) :
Class BIEC61000-6-2 :
Common Industrial StandardIEC61000-4-9 (Pulsed magnet field) :
1000A/mIEC61000-4-10 (Damped oscillation) :
30A/m, 1MHzIEC61000-4-12/18 (Shockwave) :
CM 2.5kV, DM 1kVIEC61000-4-4(EFT) :
Power cable:±4kV, Data cable: ±2kVIEC61000-4-16(Common-mode transmission) :
30V, 300V, 1sIEC61000-4-2 (ESD) :
±8kV contact discharge, ±15kV air dischargeIEC61000-4-6 (Radio frequency transmission) :
10V(150kHz~80MHz)IEC61000-4-8 :
100A/m, 1000A/m, 1s-3sIEC61000-4-5 (Surge): Power cable :
CM±4kV/ DM±2kV, Data cable: ±4kVMechanical Properties :
*IEC60068-2-6 :
Anti VibrationIEC60068-2-32 :
Free FallIEC60068-2-27 :
Anti ShockElectromagnetic Emissions and Immunity :
*Certifications :
CE mark, commercial; FCC Part 15 Class A, VCCI Class A; Class A EN 55022 (CISPR 22) Class A; Class A C-Tick; EN 55024; CCC; 47 CFR FCC Part 15, SubpartB, Class A ICES-003: 2016 Issue 6, Class A; ANSI C63.4:2014; IEC 60950-1:2005 (ed.2)+A1:2009+A2:2013Safety :
*Safety Certifications :
CB mark, commercial; CSA certified (CSA 22.2 #950); UL listed (UL 1950)/cUL IEC 950/EN 60950; EN 60950-1: 2006 + A11:2009 + A1:2010 + A12:2011 + A2:2013 IEC 60950-1:2005 ;(ed.2)+A1:2009+A2:2013; AN/NZS 60950.1:2015; CCC (China Compulsory Certificate)Warranty and Support :
*Hardware Limited Warranty :
Limited Lifetime*Technical Support via Phone and Email* :
Limited Lifetime*24x7 Online Chat Technical Support :
Limited Lifetime*Package Contents :
*All models :
Smart Industrial Switch ; Brackets and screws for DIN-Rail mounting, which are already installed in the switch; Rubber protection caps, which are already installed in the SFP sockets Installation guideBusiness Type :
IndustrialBandridth :
1G+10GMore Filters :
L3 Managed
Questions & Answers
Q1: What advantages do the 4 SFP+ uplink ports provide on the IES7521-24GE4TF-AC industrial switch?
A1: The 4 SFP+ uplink ports on the IES7521-24GE4TF-AC deliver carrier-grade backbone connectivity that transforms this 24-port switch into a powerful core/aggregation platform. These ports provide 40Gbps total uplink capacity, multi-rate support (1G/2.5G/10G) , and long-distance fiber transmission up to 80km—essential for large-scale industrial networks where bandwidth bottlenecks cannot be tolerated.
Q2: How does ERPS Ring protection enhance network reliability on the IES7521-24GE4TF-AC industrial switch?
A2: The IES7521-24GE4TF-AC integrates ITU-T G.8032 ERPS (Ethernet Ring Protection Switching) technology, delivering carrier-grade network resilience for large-scale industrial deployments. In the event of a link or switch failure, ERPS ensures automatic recovery in under 50 milliseconds – so fast that real-time applications like SCADA, robotic control, and video surveillance never perceive an interruption.
Q3: Can the IES7521-24GE4TF-AC 24-port industrial switch operate reliably in harsh industrial environments?
A3: Absolutely. The IES7521-24GE4TF-AC is purpose-engineered for the world's most demanding industrial environments, far exceeding the capabilities of commercial-grade rack-mount switches. With its ruggedized design, extended temperature range, and multi-layer environmental protection, this 24-port core switch delivers uncompromising reliability in applications where ordinary equipment would fail.
Q4: What are the key management features of the IES7521-24GE4TF-AC 24-port industrial switch?
A4: The IES7521-24GE4TF-AC is a fully managed Layer 2/Layer 3 industrial switch equipped with a comprehensive suite of management features that give you granular control over your 24-port core network. These capabilities enable traffic optimization, network segmentation, and enhanced security—essential for large-scale industrial deployments where performance and reliability are paramount.
Q5: Does the IES7521-24GE4TF-AC 24-port industrial switch provide power redundancy for mission-critical applications?
A5: Absolutely. The IES7521-24GE4TF-AC is engineered with dual independent AC power inputs supporting a universal voltage range of 100-240VAC. This true power redundancy eliminates the #1 cause of network downtime—power supply failure—by ensuring that if one power source fails, the second takes over automatically and instantaneously, with zero interruption to network operations.
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