IE-1000-4T1T-LM – 4x100M Copper Ports – 1x100M Copper Uplink – Lightly Managed Industrial Switch

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IE-1000-4T1T-LM Description

The IE-1000-4T1T-LM is a Cisco Industrial Ethernet 1000 Series compact rugged switch that carries 5 Fast Ethernet copper ports, arranged as 4 downlinks plus 1 uplink, in a 38 mm-wide DIN rail housing built for operational technology teams that manage equipment through a web GUI rather than a command line. It is the entry model of Cisco's lightly managed industrial line, positioned for machine builders and machine-to-machine installations that need VLANs, IGMP snooping, port security, and EtherNet/IP (CIP) awareness without the configuration depth of a fully managed industrial switch. The switch runs from a 12-24V supply with redundant voltage feed support, draws 4.2W, boots to operation in 50 seconds, and operates from -20°C to +70°C in a vented enclosure, which places it inside small automation panels, building risers, and roadside cabinets where space and power are limited and no PoE output is required.

Quick Specs

Parameter

Specification

Product ID

IE-1000-4T1T-LM

Downlink ports

4x 10/100M copper (RJ-45)

Uplink port

1x 10/100M copper (RJ-45)

Management model

Web device manager GUI, SNMP v2/v3, syslog

Provisioning

Plug-and-Play, zero-touch IP discovery or DHCP

Input voltage

12-24V, redundant voltage feeds

Power consumption

4.2W

Forwarding bandwidth (series maximum)

2.8 Gbps

Operating temperature

-20°C to +70°C (vented enclosure)

Memory

128 MB DRAM, 160 MB onboard flash

Mounting

DIN rail

Product Performance

Total Fast Ethernet Interfaces
Cold-Boot Startup Time
Series Maximum Forwarding Bandwidth

Key Features

38 mm DIN Footprint

At 5.0 x 1.50 x 4.5 in and 1.10 lb, this is the narrowest and lightest IE 1000 model, so it fits automation panels where the DIN rail is already crowded with relays, PLCs, and terminal blocks.

GUI-Only Operations Model

Configuration and monitoring run through the web device manager with SNMP v2/v3 and syslog behind it, so plant electricians and OT technicians can own the switch without CLI training or IT escalation.

Zero-Touch Panel Bring-Up

Plug-and-Play provisioning and zero-touch IP discovery or DHCP addressing let a replacement or new panel switch join the network with its configuration applied automatically, which shortens commissioning on serially built machines.

12-24V Panel-Rail Power

The 12-24V input with redundant voltage feed support runs directly from the low-voltage DC rails already present in control panels, avoiding a dedicated higher-voltage supply class for a data-only switch.

Port-Level Access Control

IEEE 802.1x in single-host mode with MAC authentication bypass, Sticky-MAC port security, and TACACS+/RADIUS clients keep unauthorized laptops and devices off open panel ports at the machine edge.

Division 2 Cabinet Deployability

Hazardous-location compliance (ANSI/ISA 12.12.01 Class 1 Div 2, ATEX/IECEx Zone 2 with a cabinet enclosure), IP30 housing, and NEMA TS-2 alignment let the same model serve plant, process, and roadside cabinet installs.

Application Scenarios

Machine-Builder OEM Panels

Installed inside the control panel of serially produced machines, connecting the PLC, HMI, and local I/O of one machine and handing traffic upward through the single Fast Ethernet uplink.

Building Automation Risers

Deployed in electrical and telecom risers to aggregate a handful of building automation controllers onto the facility network, where four copper ports cover the floor’s controller count.

Roadside ITS Cabinets

Mounted in intelligent transportation system cabinets at intersections, linking signal controllers and detection equipment that draw power locally rather than over Ethernet.

Product Comparison

Parameter

IE-1000-4T1T-LM

IE-1000-6T2T-LM

IE-1000-4P2S-LM

Total ports

5

8

6

Downlink ports

4x 10/100M copper

6x 10/100M copper

4x 10/100M PoE/PoE+

Uplinks

1x 10/100M copper

2x 10/100M copper

2x 1G SFP

PoE budget

Not a PoE switch (data only)

Not a PoE switch (data only)

120W

Input voltage

12-24V

12-24V

48-54V

Power consumption

4.2W

5.3W

8.6W (without PoE load)

Operating floor (vented)

-20°C

-20°C

-40°C

Weight

1.10 lb (0.50 kg)

1.25 lb (0.57 kg)

1.70 lb (0.77 kg)

  • The IE-1000-4T1T-LM and IE-1000-6T2T-LM split on capacity alone: the same 12-24V data-only design either carries 4 downlinks with a single uplink or 6 downlinks with a redundant pair of uplinks, so a panel that needs a second uplink path or more than four devices moves up to IE-1000-6T2T-LM.
  • Against IE-1000-4P2S-LM, the same four-downlink class changes power role entirely: the 4P2S adds a 120W PoE budget, swaps to 2x 1G SFP fiber uplinks, needs a 48-54V input, and extends the vented operating floor from -20°C to -40°C, which makes it the pick when the panel powers cameras or access points or when the uplink must leave the cabinet on fiber.
  • For deciding which SKU to order, settle the power question first, since PoE and the 48-54V supply class separate IE-1000-4P2S-LM from both data-only models, then size the downlink and uplink count between IE-1000-4T1T-LM and IE-1000-6T2T-LM; management model does not separate this group because every IE 1000 is web-managed.

Selection Guide

1. When One Uplink Covers The Panel

A machine or riser panel with at most four wired devices and a single upstream path runs on the IE-1000-4T1T-LM’s 4+1 Fast Ethernet layout; a design that needs uplink redundancy or two more access ports belongs on IE-1000-6T2T-LM instead.

2. PoE Or Fiber Forces The P Models

The moment endpoint power over Ethernet or a fiber uplink enters the design, this data-only copper model is out of scope; IE-1000-4P2S-LM keeps the same four-downlink footprint while adding a 120W PoE budget and 2x 1G SFP uplinks reaching up to 80 km.

3. Cold-Start Boundary At -20°C

This model’s vented-enclosure floor is -20°C (-16°C with forced airflow), which suits indoor plants and tempered cabinets; unheated outdoor enclosures that see -40°C conditions need the PoE models’ wider envelope rather than this SKU.

4. Lightly Managed Scope Limit

The IE 1000 line covers web-GUI operation with VLANs, IGMP snooping, and port security; designs that require CLI automation, routing, or ring protocols beyond spanning tree sit with Cisco’s fully managed Industrial Ethernet families rather than any IE 1000 model.

Ordering Checklist

Check Item

What to Confirm

Why It Matters

Power supply class

Pair the switch with a 50W DIN rail supply such as PWR-IE50W-AC= sized for the 12-24V input.

An underrated or wrong-class supply is the most common cause of a dead panel switch at first power-on.

Hazardous-location kit

Use PWR-IE50W-AC= rather than PWR-IE50W-AC-L= when the cabinet sits in a Class 1 Div 2 area, and plan the required enclosure.

The -L supply is IP20 rated and carries no hazardous-location certification, which fails site acceptance in classified zones.

Enclosure thermal class

Match the enclosure type to the temperature tier: -20°C to +70°C vented, -20°C to +60°C sealed, -16°C to +75°C with forced airflow.

A sealed cabinet in a hot plant can push the switch past its derated ceiling even though the model number is correct.

Uplink media plan

Confirm the upstream run is Fast Ethernet copper; this model has no SFP slot.

A fiber backhaul discovered at install time cannot be retrofitted onto this SKU.

Rack adaptation

Add STK-RACK-DINRAIL= only when the switch must mount in a 19-inch rack instead of a DIN rail.

The switch ships as a DIN rail device; rack installs stall without the adapter kit.

Optional Add-ons

Model

Description

PWR-IE50W-AC=

50W DIN rail power supply, AC 100-240V or DC 125-250V input, hazardous-location certified

PWR-IE50W-AC-L=

50W DIN rail power supply, AC input, IP20 light-duty variant without hazardous-location certification

STK-RACK-DINRAIL=

19-inch rack mount kit for DIN rail Industrial Ethernet switches

Cisco IE 1000 Switch Rear Panel

The rear panel of the switch has a latch for installation on a DIN rail. See photo. The latch is spring-loaded to move down to position the switch over a DIN rail and return to the original position to secure the switch to a DIN rail.

IE-1000-rear

Specifications

Parameter Specification Parameter Specification
Product ID IE-1000-4T1T-LM Product type Lightly managed industrial Ethernet switch, IE 1000 Series
Downlink ports 4x 10/100M copper Uplink port 1x 10/100M copper
Connectors RJ-45, 4-pair Category 5 UTP Management Web device manager GUI, SNMP v2/v3, syslog
Provisioning Plug-and-Play, zero-touch IP discovery, DHCP; 50-second cold boot Layer 2 features VLANs, MSTP, STP PortFast, LLDP, CDP aware, IGMP snooping and querier, EtherChannel (LACP), SPAN, storm control, Smartport macros
Security 802.1x single-host with MAB, Sticky-MAC port security, DHCP snooping, BPDU guard, TACACS+/RADIUS Industrial protocol EtherNet/IP (CIP) with EDS support
Forwarding bandwidth (series maximum) 2.8 Gbps Switching bandwidth (series maximum) 5.6 Gbps
Memory 128 MB DDR2 DRAM, 160 MB onboard flash MTBF (series) 374,052 hours
Input voltage 12-24V, redundant voltage feeds Power consumption 4.2W
Operating temperature -20°C to +70°C vented; -20°C to +60°C sealed; -16°C to +75°C with forced airflow Operating altitude Up to 13,800 ft
Storage environment -40°C to +85°C, up to 15,000 ft Humidity 5% to 95% non-condensing
Dimensions (H x W x D) 5.0 x 1.50 x 4.5 in (127 x 38 x 115 mm), including DIN rail Weight 1.10 lb (0.50 kg)
Safety UL/CSA 60950-1, EN 60950-1, IEC 60950-1 CB, UL/CSA/IEC/EN 61010-2-201, CE Hazardous locations ANSI/ISA 12.12.01 Class 1 Div 2 A-D; ATEX and IECEx Class 1 Zone 2 (cabinet enclosure required)
EMC and industry FCC Part 15 Class A, EN 55022 Class A, EN 61000-4 series immunity, EN 61000-6-1/-2/-4, EN 61131-2, EN 61326-1, NEMA TS-2, Marine TAC, IP30 Environmental compliance RoHS, China RoHS, EU WEEE
Mounting DIN rail; 19-inch rack via STK-RACK-DINRAIL= Warranty 5-year limited hardware warranty (all IE-1000 PIDs and listed IE power supplies)

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Questions & Answers

  • What does IE-1000-4T1T-LM provide for very small panels?

    IE-1000-4T1T-LM provides 4 FE copper ports and 1 GE copper uplink in the smallest IE1000 data-only, lightly managed form factor.
  • Is IE-1000-4T1T-LM a PoE model?

    IE-1000-4T1T-LM has no PoE budget and no powered downlinks, so sensors or cameras needing power require separate supply wiring.
  • Why pick IE-1000-4T1T-LM instead of IE-1000-6T2T-LM?

    IE-1000-4T1T-LM fits the smallest machine panels where 5 copper ports are enough and the extra uplink on 6T2T is unnecessary.
  • Can IE-1000-4T1T-LM be configured through normal IOS commands?

    IE-1000-4T1T-LM follows the IE1000 GUI-first model; Cisco notes CLI access is for debugging, so config-terminal expectations need adjustment.
  • What temperature planning matters for IE-1000-4T1T-LM?

    IE-1000-4T1T-LM shares the data-model rating of -20C to 70C in vented enclosures, so colder roadside cabinets may need a PoE IE1000 or another rugged line.
  • What network design fits IE-1000-4T1T-LM?

    IE-1000-4T1T-LM fits one small machine cell, kiosk, or local panel where a few FE devices need web-managed segmentation and one GE copper uplink.
  • What uplink limitation matters on IE-1000-4T1T-LM?

    IE-1000-4T1T-LM has a single GE copper uplink, so ring, fiber, or dual-uplink designs need another IE1000 SKU with the right uplink type.
  • Which buyer requirement rules out IE-1000-4T1T-LM?

    PoE, SFP fiber, or CLI-style configuration requirements rule out IE-1000-4T1T-LM because it is the smallest copper data model.

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