IE-3100-4P2S-E - Cisco IE 3100 Series 4 Port PoE Switch

Cisco IE-3100-4P2S-E — Industrial Ethernet 3100 Series (4× PoE + 2× SFP) Switch

What it is

IE-3100-4P2S-E is a Cisco Industrial Ethernet 3100 Series ruggedized managed switch designed for industrial/OT environments. It provides 4 × Gigabit PoE+ access ports plus 2 × SFP uplinks, combining powered edge connectivity and fiber backhaul in a hardened chassis suitable for manufacturing floors, utilities, transportation, and harsh edge closets.

Why buyers pick IE-3100-4P2S-E (plain English)

PoE+ for edge devices: Built-in power on the access ports lets you run IP cameras, wireless APs, VoIP phones, sensors, and other powered endpoints without separate injectors.

Fiber uplinks for distance and noise immunity: The SFP uplinks give you the flexibility to connect over fiber back to aggregation or core, which helps in electrically noisy environments or long runs.

Industrial-grade reliability: Designed to handle temperature swings, vibration, dust, and electrical interference found outside normal office or data center racks.

Managed features: Offers VLANs, QoS, security ACLs, redundancy protocols, and Cisco CLI-style operations that fit into enterprise OT and IT workflows.

60-second spec box (IE-3100-4P2S-E)

Access / downlink ports

• 4 × 10/100/1000Base-T RJ-45 with PoE+ (802.3at) on all access ports

Uplinks

• 2 × 1G SFP fiber uplink slots

PoE

• PoE+ supported (power budget depends on PSU/line configuration)

Switching / features

• Managed Layer 2 switching

• VLANs, QoS, STP (and variants), ACLs

Management

• Cisco CLI, SNMP, Web UI (platform dependent)

Ruggedization

• Industrial temperature rating

• Enhanced surge/ESD protection

• DIN-rail or wall mounting

Where it fits (and when to choose something else)

Perfect for:

• Industrial access closets needing PoE+ + fiber uplinks

• Smart building, manufacturing, transportation, utility edge networks

• Environments with electrical noise or temperature extremes

Choose something else if:

• You need more access ports → higher-port Industrial Ethernet models

• You need 10G uplinks → look for models with SFP+

• You don’t need PoE → non-PoE industrial switches cost less

TL;DR

IE-3100-4P2S-E is a rugged Cisco industrial switch with 4× PoE+ copper access ports and 2× SFP fiber uplinks — designed for harsh edge environments where you need powered devices and fiber connectivity in a managed switch.