Cisco Catalyst IE-3500-18T4X-E Full English Product Description

1. Short Sales Title (For Quotation & E-commerce Listing)

Cisco Catalyst IE-3500-18T4X-E Fanless Rugged Industrial Layer 3 Switch, 18×10/100/1000BASE-T Non-PoE Gigabit Downlinks, 4×10G SFP+ Dedicated High-Speed Fiber Uplink Ports, Permanent Cisco IOS XE Network Essentials Software License, Extended Wide Temperature IP30 DIN-Rail Mount Modular Industrial Switch, TSN Low-Latency Forwarding & Baseline Industrial OT Cybersecurity Suite, High Copper Port Density + Quad 10G Fiber Uplinks Optimized for Large-Scale Factory Automation, Machine Vision, Mass AI 4K Surveillance, Underground Mining, Offshore Oil & Gas and Power Substation Sealed Zero-Airflow Mission-Critical OT Backbone Networks

2. Official Product Overview

The Cisco Catalyst IE-3500-18T4X-E is a high-density fanless hardened Layer 3 industrial switch from the next-generation Cisco Catalyst IE3500 Rugged Series, a high-performance modular industrial switching platform engineered for large-scale edge OT deployments requiring abundant Gigabit copper access ports paired with quad high-bandwidth 10G fiber uplinks without PoE power delivery in extreme unconditioned industrial environments. It ships factory preloaded with permanent Network Essentials IOS XE license, delivering core static Lite Layer 3 IPv4 routing, complete TSN time-sensitive networking, full industrial automation protocol stack, baseline industrial cybersecurity, IOx edge virtualization and Cisco Cyber Vision OT threat analytics without extra paid license upgrades.

Model Suffix Breakdown

18T: Eighteen 10/100/1000BASE-T Gigabit RJ45 copper downlink ports, non-PoE unpowered interfaces for PLCs, machine vision cameras, industrial sensors and intercom endpoints
4X: Four independent dedicated 10G SFP+ fiber uplink slots (pure 10G fiber-only design, no shared combo RJ45 media, supporting multi-directional 10G trunking for mass AI vision streams, 4K surveillance video and ultra-low-jitter industrial control traffic)
E: Extended wide-temperature hardened chassis with reinforced PCB thermal layout, enhanced substation-grade EMC/EMI surge suppression and anti-corrosion coating, certified for stable 24/7 continuous operation inside fully sealed zero-airflow industrial enclosures with extreme hot/cold swings, heavy dust, salt fog, moisture and corrosive gas electrical interference

This industrial non-PoE switch adopts heavy-duty IP30 die-cast metal fanless passive convection cooling chassis, dual redundant isolated wide-range 9.6–60 VDC DC power inputs, and reinforced substation-class electrical noise filtering. Fanless zero-moving-part architecture eliminates mechanical fan failure points and drastically cuts long-term field maintenance overhead for remote unmanned underground mining, offshore oil & gas platforms, coastal roadside traffic control cabinets and power substation sealed control panels.

Four standalone 10G SFP+ fiber uplinks support high-speed multi-fiber link aggregation trunking, redundant REP/MRP/HSR/PRP/DLR sub-50ms zero-failover industrial ring topologies and multi-path high-bandwidth backbone connections to multiple central control room core switches, eliminating fiber uplink bandwidth bottlenecks for high-throughput machine vision and mass surveillance workloads. Modular expansion slots support IEM-3500 series add-on modules to scale total port count up to 26 ports for future network capacity expansion.

Preloaded universal Cisco IOS XE Network Essentials firmware with native license-free IEEE 1588v2 PTP transparent/boundary clock precision timing, it natively supports mission-critical industrial automation standards: REP Resilient Ethernet Protocol, MRP Media Redundancy Protocol, HSR/PRP lossless parallel redundancy, EtherNet/IP, PROFINET, Modbus TCP and GOOSE for power grid IED synchronization. Built-in Layer 2 NAT and static Lite Layer 3 IPv4 routing enable cross-subnet remote site IP translation and inter-VLAN forwarding without extra license upgrades. It also supports Cisco IOx local edge application hosting and Cyber Vision industrial threat monitoring for full OT cybersecurity visibility and real-time asset inventory management.

Equipped with industrial multi-core high-speed switching chipset, 4GB DRAM and front-access removable SD flash storage (sold separately as optional accessory), it provides 56 Gbps non-blocking switching capacity and 41.66 Mpps wire-speed forwarding rate for 64-byte frames. Integrated IEEE 802.1Qbu / 802.3br TSN frame preemption minimizes latency and jitter for time-sensitive PLC motion control signals, mass multi-stream 4K industrial surveillance video and high-volume distributed IIoT sensor data. Passive heat sink fanless design delivers silent, maintenance-free 24/7 continuous operation in fully sealed unventilated industrial enclosures with zero airflow.

3. Port & Industrial Hardware Specifications

18 × 10/100/1000BASE-T Gigabit RJ45 downlink ports, auto-negotiate 1G/100M/10M, No PoE power delivery
4 × dedicated 1000BASE-X / 10GBASE-X SFP+ fiber uplink slots (fiber-only, no combo RJ45 shared media)
Compatible transceivers: Industrial-grade 1000BASE-SX/LX/ZX SFPs, rugged extended-temperature 10GBASE-SR/LR/ER/ZR SFP+ optical modules
DC power input range: Nominal 12–48 VDC SELV; absolute rated 9.6–60 VDC, dual redundant isolated terminal inputs for seamless power failover redundancy
Dedicated multi-channel alarm relay terminal block (2 isolated alarm inputs + 1 Form-C fault output relay; 1A@24VDC / 0.5A@48VDC) for remote cabinet fault monitoring linkage
Switching Capacity: 56 Gbps Non-Blocking
Forwarding Rate (64-byte frames): 41.66 Mpps
Memory: 4GB DRAM, front-swappable 4GB SD flash card (optional) for offline configuration backup, zero-touch equipment replacement and firmware storage
MAC Address Table: 16,384 entries; Jumbo Frame support up to 9000-byte MTU
Console interfaces: 1×RJ45 RS232 serial console, 1×micro-USB port for local offline configuration and fault troubleshooting
Status LED indicators: Per-port link/activity LED, system power, dual power input status, over-temperature and fault alarm LEDs
Mounting options: Standard DIN rail mounting, wall/panel mounting brackets included
Thermal design: Fanless passive convection cooling, no rotating mechanical components
Industrial compliance certifications: IEC 61850-3, IEEE 1613 Class 2 substation-grade EMC, CE, RoHS, UL Class I Div 2 hazardous location certified, EN50155 railway compliant, IEC 62443 industrial cybersecurity certified
Dimensions (W × H × D): 243.3 mm × 91.44 mm × 134.62 mm (9.58” × 3.60” × 5.30”)
Weight: 1.84 kg (4.06 lbs)
Typical idle power consumption (no PoE load): 44 W

4. Full Layer 3 Industrial Switching, Redundancy & Native Industrial Features

Up to 4096 IEEE 802.1Q tagged VLANs, port-based VLAN, port-based static IPv4 routing, voice VLAN for industrial intercom VoIP systems
8 priority egress queues with Strict Priority / WRR QoS scheduling + IEEE 802.1Qbu TSN frame preemption, prioritizing real-time PLC motion control signals, low-latency 10G video trunk traffic and safety sensor data
IEEE 802.3ad LACP static link aggregation for multi-10G uplink bandwidth expansion and automatic failover
IGMP Snooping v1/v2/v3 with built-in IGMP Querier, optimized for large-scale multi-camera industrial video multicast streams
LLDP & LLDP-MED automatic industrial endpoint discovery for PLC controllers, IP cameras and industrial wireless gateways
Port mirroring, RSPAN remote mirroring, RSTP/MSTP spanning tree, Cisco REP + MRP + HSR + PRP + DLR for sub-50ms zero-failover industrial ring topologies
Broadcast/multicast/unicast storm control to eliminate broadcast storms disrupting production machinery and safety interlock systems
Native industrial automation protocol suite: EtherNet/IP (CIP), PROFINET, Modbus TCP optimization, GOOSE for power grid IED synchronization
Built-in license-free native Network Essentials features:
1. IEEE 1588v2 Precision Time Protocol (PTP) transparent & boundary clock
2. Layer 2 NAT for cross-subnet remote site IP mapping
3. Static IPv4 Lite Layer 3 routing for inter-VLAN forwarding
4. IOx local edge application hosting for OT edge computing
5. Cyber Vision industrial network threat visibility, asset inventory and anomaly detection
MACsec 256-bit link encryption on all SFP+ uplink ports for secure fiber backbone transmission
sFlow full traffic monitoring for industrial network performance diagnosis, latency testing and fault troubleshooting

5. Rugged Extended Environmental & Energy-Saving Features

Extended operating temperature range (E exclusive hardened rating):
- Blower-assisted vented enclosures (200 LFM airflow): -40°C to +75°C (-40°F to 167°F)
- Standard vented cabinets (40 LFM airflow): -40°C to +70°C (-40°F to 158°F)
- Fully sealed/unventilated cabinets (0 airflow): -40°C to +60°C (-40°F to 140°F)
Short-term peak operating temperature: Up to +85°C for maximum 16 hours
Storage temperature: -40°C to +85°C
Relative Humidity: 5%–95% non-condensing
High reinforced EMC/EMI immunity, robust against interference from industrial frequency converters, heavy-duty motors and welding equipment
IEEE 802.3az EEE Energy Efficient Ethernet to reduce idle port power consumption
Fanless passive cooling eliminates fan power draw, mechanical noise and failure points
Dual redundant DC power inputs eliminate single point of power failure for mission-critical industrial OT networks
Altitude tolerance: Up to 4,572 m (15,000 ft) without temperature derating; up to 12,192 m (40,000 ft) with temperature derating
Salt fog & mixed gas corrosion resistance compliant with IEC 60068-2-52, IEC 60068-2-60

6. Industrial-Grade IOS XE Network Essentials Security Suite

Multi-level role-based password-protected management access, HTTPS encrypted modern HTML5 WebUI, SSH encrypted remote CLI access
Secure Boot, image signing and Cisco Trust Anchor TPM module for hardware root-of-trust protection against firmware tampering
IEEE 802.1X port-based authentication, supports local user database + RADIUS/TACACS+ centralized authentication
Hardware-accelerated L2-L4 downloadable ACL traffic filtering to isolate unauthorized communication between industrial field devices
Port security with static MAC address binding and port lockdown for fixed field equipment
Encrypted configuration file storage, SD card secure profile synchronization for batch zero-touch deployment
Multi-trigger alarm output for link down, dual power loss, over-temperature threshold crossing and configuration failure events

7. Comprehensive IOS XE Management Interfaces

Full native Cisco IOS XE CLI for advanced industrial network configuration and deep fault troubleshooting
Redesigned intuitive HTML5 modern WebUI for simplified OT maintenance without professional CLI expertise
TFTP/FTP/SD card firmware upgrade with dual redundant firmware partitions to avoid device bricking during upgrades
Removable SD flash card for offline configuration backup, batch zero-touch deployment and profile synchronization
SNMP v1/v2c/v3 fully compatible with industrial SCADA systems and third-party unified network monitoring platforms
Open REST APIs and YANG data models for programmatic automation integration
Pre-built industrial Smartport templates for one-click configuration of IP cameras, PLC controllers, industrial wireless APs and intercom devices
Fully integrated with Cisco Catalyst Center (DNA Center) and Cisco Industrial Network Director for unified OT network topology visualization and mass zero-touch batch deployment

8. Reliability & Compliance Parameters

Operating Temp: -40°C ~ +70°C (vented cabinet); -40°C ~ +60°C (sealed cabinet, E extended rating)
Storage Temp: -40°C ~ +85°C
Relative Humidity: 5%–95%, non-condensing
Mechanical resistance: IEC 60068-2-6 vibration standard, IEC 60068-2-27 shock resistance certified
Global certifications: CE, UL, RoHS, IEC 61850-3, IEEE 1613 Class 2, Class I Div 2 hazardous location, EN50155 railway standard, IEC 62443 industrial cybersecurity
MTBF: 540,000 hours under standard industrial operating conditions
Warranty: Cisco Limited 5-Year Industrial Hardware Warranty

9. Typical Industrial Deployment Scenarios

Large automated manufacturing factory main edge aggregation switch connecting dozens of PLCs, high-speed machine vision scanners and industrial 4K PTZ cameras with four independent 10G fiber redundant backbone uplinks to central control room
Underground mining fanless high-density industrial switch with extended temperature rating for dust, humid and corrosive underground control and ultra-high-bandwidth fiber backbone monitoring networks
Offshore oil & gas sealed cabinet core switch enduring long-term salt fog and wide temperature swings for multi-directional 10G fiber-connected remote PLC and high-resolution offshore monitoring equipment networking
Smart city roadside multi-traffic aggregation switch utilizing four 10G SFP+ ports for multi-directional high-bandwidth fiber trunking to multiple municipal traffic control and AI surveillance data centers
Distributed solar/wind energy substation edge switch inside uncooled sealed control enclosures for mass grid IED access paired with multi-path high-speed 10G fiber backhaul and multi-ring redundant topology support

10. Standard Package Contents

1 × Cisco Catalyst IE-3500-18T4X-E Extended Temperature Fanless Fully Managed Non-PoE Industrial Layer 3 Switch

1 × DIN rail mounting bracket assembly

1 × Wall/panel mounting screw set

1 × Dual DC power + multi-channel alarm signal terminal block

Quick Start Hardware Installation Guide & Industrial Safety Compliance Certificate

*4GB SD flash card sold separately as optional accessory

Short Commercial Version (For Product Ads & Listing Titles)

The Cisco Catalyst IE-3500-18T4X-E is a high-density fanless extended-temperature rugged fully managed modular industrial Layer 3 switch from Cisco IE3500 Rugged Series, featuring 18×Gigabit non-PoE copper downlink ports and 4×dedicated 10G SFP+ fiber-only high-speed uplink ports, preloaded with permanent Cisco IOS XE Network Essentials license. It supports fanless passive cooling, -40°C ~ +60°C sealed cabinet extended temperature range with DIN rail mounting, delivering static Lite Layer 3 IPv4 routing, native IEEE 1588v2 PTP, TSN low-latency frame preemption, L2 NAT, IOx edge computing, Cyber Vision OT threat visibility, REP/MRP/HSR/PRP/DLR zero-failover ring redundancy and dual redundant DC power. High copper port density plus quad 10G fiber uplink throughput, complete industrial cybersecurity, QoS and full industrial automation protocol suite for large-scale manufacturing, machine vision, mining, offshore oil & gas and distributed energy substation high-throughput sealed edge OT networks, backed by Cisco’s 5-Year Limited Industrial Hardware Warranty.


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