IE-3100-4P2S-E – 4xGE PoE+ Ports – 2xGE SFP Uplinks – Network Essentials

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IE-3100-4P2S-E Description

IE-3100-4P2S-E is a Cisco Catalyst IE3100 Rugged Series Network Essentials switch with four PoE/PoE+ Gigabit copper ports and two SFP-only uplinks. It is used in small industrial cabinets where a limited number of powered endpoints need fiber uplink handoff.

Pick this SKU when four powered ports and a 120 W PoE budget match the site plan. IE-3100-4T2S-E removes PoE, IE-3100-8P2C-E increases powered-port density and changes to combo uplinks, and 4PPoE variants should be used only when higher endpoint power is required.

Before sourcing, verify the PoE budget, 12 to 54 VDC input, PoE software baseline, SFP optics, powered-device class, stock, price, warranty coverage, shipping options, and lead time. Layer23-Switch can help confirm compatibility and shipment details.

Quick Specs

Parameter

Specification

Product ID

IE-3100-4P2S-E

Product family

Cisco Catalyst IE3100 Rugged Series

Product type

Industrial Ethernet switch

Network license

Network Essentials

Total ports

6

PoE copper downlink ports

4 x 1000BASE-T PoE/PoE+ RJ45 ports

SFP-only uplink ports

2 x 1000BASE-X ports

PoE power budget

120 W

PoE output note

Up to 30 W PoE+ output on all 4 downlink ports

Minimum PoE software support

Cisco IOS XE 17.15.1

Power inputs

Dual DC inputs

Input voltage range

12V to 54V nominal

Power consumption

22.5 W excluding PoE load

Product Performance

Total Port Count
PoE Budget
Forwarding Rate

Key Features

Four powered access ports

IE-3100-4P2S-E is the small IE3100 PoE/PoE+ model for cabinets that need four powered Gigabit copper endpoints without moving to an 8-port powered switch.

SFP-only uplink identity

The two uplinks are 1000BASE-X SFP ports, so the fiber handoff and supported optic choices should be handled as separate BOM items.

Network Essentials software tier

Cisco maps the E-suffix PID to Network Essentials, which keeps the order tied to the intended IE3100 license level.

PoE support requires the right IOS XE train

Cisco release notes state that PoE support for IE-3100-4P2S-E begins with Cisco IOS XE 17.15.1, so staging software is part of the powered-port check.

External power supply sizing controls the usable budget

The switch and connected PoE load must stay within the selected DIN-rail power supply wattage, making PSU selection part of the same purchase decision.

Compact rugged cabinet fit

Cisco lists DIN-rail mounting, dual DC inputs, alarm I/O, SD-card support, Cisco IOS XE, WebUI, and Catalyst Center management for the IE3100 platform.

Application Scenarios

Camera or sensor drops in narrow cabinets

IE-3100-4P2S-E fits an industrial enclosure where up to four powered Gigabit endpoints need local access and the uplink design is fiber based.

Small IE3100 refresh with PoE added

Keep this SKU in the refresh plan when a site is replacing a data-only edge switch and now needs PoE/PoE+ on the same four-copper-port class.

Fiber-uplink access at the edge

This model works for OT access cells that need two SFP uplinks and do not need combo copper/SFP uplinks or more than four powered access ports.

Product Comparison

Parameter

IE-3100-4P2S-E

IE-3100-4T2S-E

IE-3100-3P1U2S-E

IE-3100-8P2C-E

Product family

Cisco Catalyst IE3100 Rugged Series

Cisco Catalyst IE3100 Rugged Series

Cisco Catalyst IE3100 Rugged Series

Cisco Catalyst IE3100 Rugged Series

Product type

Industrial Ethernet switch

Industrial Ethernet switch

Industrial Ethernet switch

Industrial Ethernet switch

Network license

Network Essentials

Network Essentials

Network Essentials

Network Essentials

Total ports

6

6

6

10

Copper downlink ports

4 x 1000BASE-T PoE/PoE+

4 x 1000BASE-T

3 x 1000BASE-T PoE/PoE+ plus 1 x 4PPoE

8 x 1000BASE-T PoE/PoE+

1000BASE-X SFP-only uplinks

2

2

2

No SFP-only uplinks listed

1000BASE-T/1000BASE-X combo uplinks

No combo uplinks listed

No combo uplinks listed

No combo uplinks listed

2

PoE power budget

120 W

No PoE budget listed

120 W

240 W

Per-port PoE output

Up to 30 W PoE+ on 4 downlinks

No PoE output listed

Up to 30 W PoE+ on 3 downlinks or up to 90 W 4PPoE on 1 downlink

Up to 30 W PoE+ on 8 downlinks

Nominal input range

12V to 54V

12V to 48V

12V to 54V

12V to 54V

Power consumption

22.5 W excluding PoE load

14 W

22.5 W excluding PoE load

26 W excluding PoE load

Forwarding rate

8.928 Mpps

8.928 Mpps

8.928 Mpps

14.88 Mpps

DIN-rail weight

2.0 lb / 0.91 kg

1.6 lb / 0.73 kg

2.0 lb / 0.91 kg

2.3 lb / 1.04 kg

  • In an IE-3100-4P2S-E vs IE-3100-4T2S-E comparison, the port layout stays at four copper downlinks and two SFP uplinks, but IE-3100-4P2S-E adds PoE/PoE+ and a 120 W power budget.
  • The IE-3100-4P2S-E vs IE-3100-3P1U2S-E difference is endpoint power class: IE-3100-4P2S-E gives four PoE/PoE+ ports, while IE-3100-3P1U2S-E reserves one downlink for 4PPoE.
  • For IE-3100-4P2S-E vs IE-3100-8P2C-E comparison work, the main split is density and uplink type because the 8P2C-E model has eight powered downlinks and two combo uplinks.
  • Buyers deciding which model to choose should confirm powered endpoint count, 4PPoE need, SFP-only versus combo uplinks, and the power-supply budget before treating these IE3100 Network Essentials PIDs as interchangeable.

Selection Guide

1. Choose the four-port PoE SFP-uplink profile

Choose IE-3100-4P2S-E when the order needs four Gigabit PoE/PoE+ copper downlinks, two SFP uplinks, and the Cisco-listed 120 W PoE budget.

2. Keep 4T2S-E only for data-only endpoints

Move to IE-3100-4T2S-E when the same compact 4 copper plus 2 SFP layout is required without switch-supplied endpoint power.

3. Select 3P1U2S-E for one 4PPoE port

Use IE-3100-3P1U2S-E when the cabinet needs one 4PPoE high-power downlink; IE-3100-4P2S-E is documented for PoE/PoE+ on four downlinks.

4. Verify software and external power before substitution

Confirm Cisco IOS XE 17.15.1 or later and size the DC power supply against the switch load plus planned PoE draw because both items control whether the powered-port design is usable.

PoE Power Planning

Planning item

Cisco-confirmed value

Procurement check

PoE-capable ports

4 x 1000BASE-T PoE/PoE+ downlinks

Match the powered endpoint count to the four copper ports

Documented PoE budget

120 W

Keep the camera, sensor, AP, or phone power worksheet within the confirmed budget

Per-port output

Up to 30 W PoE+ on all 4 downlink ports

Use another IE3100 PoE SKU when 4PPoE endpoint power is required

Software support baseline

Cisco IOS XE 17.15.1 and later

Stage a supported image before relying on PoE operation

Input voltage behavior

12V to 54V nominal input with 9.6V to 60V absolute range

Confirm the plant power feed and PSU output before installation

Power supply sizing rule

Switch and PoE load must fit within the installed supply wattage

Choose an IE DIN-rail power supply with enough headroom for connected endpoints

Ordering Checklist

Review area

Required confirmation

Procurement risk

Exact Cisco PID

IE-3100-4P2S-E with Network Essentials

Prevents substitution with the non-PoE 4T2S-E or the 4PPoE 3P1U2S-E

Powered endpoint count

4 PoE/PoE+ downlinks and 120 W PoE budget

Keeps endpoint load from being planned against an 8-port or 4PPoE model

Uplink media

2 x 1000BASE-X SFP uplinks

Avoids quoting combo-uplink assumptions for a fixed SFP-uplink SKU

Software baseline

Cisco IOS XE 17.15.1 or later for IE3100 PoE support

Reduces powered-port staging risk before installation

Power architecture

Dual DC inputs with 12V to 54V nominal range

Aligns the switch with the DIN-rail power supply and cabinet wiring

Accessories

SFP modules, IE power supplies, SD cards, and rack DIN-rail kit are separate ordering items

Stops the switch PID from being treated as a complete optics or power bundle

Optional Add-ons

Model

Description

PWR-IE65W-PC-AC=

65 W AC DIN-rail power supply option with PoE/PoE+ support

PWR-IE65W-PC-DC=

65 W DC DIN-rail power supply option with PoE/PoE+ support

PWR-IE170W-PC-AC=

170 W AC DIN-rail power supply option with PoE/PoE+ support

PWR-IE240W-PCAC-L=

240 W AC DIN-rail power supply option with PoE/PoE+ support

PWR-IE240W-AC-IEC=

240 W AC DIN-rail power supply option with PoE/PoE+ support

PWR-IE400W-AC-IEC=

400 W AC DIN-rail power supply option with PoE/PoE+ support

PWR-IE480W-PCAC-L=

480 W AC DIN-rail power supply option with PoE/PoE+ support

IE-3100-4P2S-E Front Panel Overview

The illustrations in this section provide an overview of the variety of components available on the various switch models in this product family. Not all models are illustrated.

Number

Feature

Number

Feature

1

Dual-media SFP port LEDs

6

Express Setup LED

2

Dual-media copper port LEDs

7

System LED

3

1000BASE-T port LEDs

8

Alarm input LEDs

4

Power connector LED

9

Alarm output LED

5

Management console LED

10

PoE Status LED Note This LED is present in PoE models only.

Specifications

Packaging weight and dimensions included:
Weight 2.29 kg
Dimensions 24 × 22 × 17 cm
Parameter Specification Parameter Specification
Brand Cisco Product family Cisco Catalyst IE3100 Rugged Series
Product ID IE-3100-4P2S-E Product type Industrial Ethernet switch
Network license Network Essentials Total ports 6
PoE copper downlink ports 4 x 1000BASE-T PoE/PoE+ RJ45 ports SFP-only uplink ports 2 x 1000BASE-X ports
PoE power budget 120 W PoE output Up to 30 W PoE+ output on all 4 downlink ports
Minimum PoE software support Cisco IOS XE 17.15.1 Operating system family Cisco IOS XE
Power inputs Dual DC inputs Input voltage range 12V to 54V nominal; 9.6V to 60V absolute
Normal-operation current 5.8 A at 12V; 7.3 A at 24V; 3.7 A at 54V Inrush current 80 A for 1 ms at 12V, 24V, or 48V input
Power consumption 22.5 W excluding connected PoE load Forwarding rate 8.928 Mpps
Forwarding bandwidth 6 Gbps DRAM 4 GB
User-accessible flash 1.5 GB SD card capacity 1 GB, 4 GB, or 16 GB optional SD card
Unicast MAC addresses 8000 VLAN scale 256 VLANs
IGMP multicast groups 512 STP instances 128
Console ports 1 RS-232 via RJ45 and 1 micro USB Alarm I/O 2 dry-contact alarm inputs and 1 alarm output
Mounting DIN rail Dimensions 5.00 x 2.55 x 5.08 in. / 12.70 x 6.48 x 12.90 cm
Weight 2.0 lb / 0.91 kg switch only Operating temperature -40C to 75C in blower-equipped cabinet
Storage temperature -40C to 85C Relative humidity 5 percent to 95 percent noncondensing
Operating altitude Up to 15000 ft with no temperature derating MTBF 755460 hours
Management Cisco Catalyst Center, WebUI, CLI, SNMP, NETCONF, and RESTCONF Power supply note Switch and PoE ports must stay within the installed power supply wattage

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    Jonathan Hicks
    Posted on 10/02/2026
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    George Hamilton
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    Express shipping was available when we needed it most.

    Tomas Jensen
    Posted on 26/01/2026
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    Competitive pricing helped us stay within budget.

    Scott Lang
    Posted on 05/06/2025
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    Big service for a small box. Thanks!

    Site Engineer
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    Packed well. Arrived safely at our field office.

Questions & Answers

  • What PoE layout does IE-3100-4P2S-E provide?

    IE-3100-4P2S-E provides 4 PoE/PoE+ GE copper ports and 2 GE SFP uplinks, with Network Essentials in a compact rugged switch.
  • What PoE budget applies to IE-3100-4P2S-E?

    IE-3100-4P2S-E uses a 120W PoE power budget, so endpoint wattage for cameras, APs, sensors, or phones needs allocation before deployment.
  • How is IE-3100-4P2S-E different from IE-3100-4T2S-E?

    IE-3100-4P2S-E adds PoE/PoE+ on the four GE copper ports, while IE-3100-4T2S-E is non-PoE with the same 2 GE SFP uplink count.
  • What power supply detail matters for IE-3100-4P2S-E?

    IE-3100-4P2S-E PoE planning depends on a PoE-capable industrial supply and total wattage sized for switch consumption plus powered endpoint load.
  • Where does IE-3100-4P2S-E fit in OT deployments?

    IE-3100-4P2S-E fits compact cabinets with a few powered endpoints, such as cameras, access points, phones, sensors, or edge controllers.
  • What uplink type does IE-3100-4P2S-E use?

    IE-3100-4P2S-E uses 2 GE SFP uplinks, allowing fiber reach from a small PoE cabinet without using combo uplink tradeoffs.
  • What installation checks matter for IE-3100-4P2S-E?

    IE-3100-4P2S-E installation checks DIN Rail clearance, grounding, dual DC feeds, PoE load, alarm input wiring, and fiber service loops.
  • When does IE-3100-4P2S-E fit over IE-3100-8P2C-E?

    IE-3100-4P2S-E fits smaller PoE cabinets needing four powered ports and dedicated SFP uplinks; IE-3100-8P2C-E fits denser PoE drops.

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