IEM-3300-8S - Cisco IE3300 Rugged 8 Port SFP Fiber Expansion Module

Cisco IEM-3300-8S — IE3300 Rugged 8-Port SFP Fiber Expansion Module

What it is

IEM-3300-8S is a Cisco Industrial Ethernet 3300 Series rugged expansion module that adds 8 × SFP fiber ports to a compatible IE-3300 chassis.
It delivers flexible fiber connectivity in harsh industrial environments, letting you extend networks with high-bandwidth, reliable fiber links suited for outdoor enclosures, factories, utilities, and transportation systems.

Why buyers pick IEM-3300-8S (plain English)

High-bandwidth fiber expansion
Eight SFP fiber ports give you scalable uplinks or extended fiber access for linking distributed industrial sites without the distance limits of copper.

Industrial rugged design
Built to withstand vibration, extreme temperatures, dust, and electrical noise — ideal for industrial and outdoor deployments.

Flexible media support
Works with a wide range of SFP optics (multimode and single-mode) so you can tailor reach and media type to your network design.

Seamless IOS integration
Managed like the rest of the IE-3300 using Cisco IOS — consistent CLI, SNMP, NETCONF, and industrial protocols make configuration familiar and predictable.

Easy field deployment
Modular expansion lets you add fiber ports without replacing the whole switch — great for staged deployments or evolving fiber needs.

60-second spec box (IEM-3300-8S)

Module type
Industrial fiber expansion module

Ports added
8 × SFP (fiber)

Speed support
1 GbE (SFP)

Connector type
SFP cages for user-supplied optics

Form factor
Cisco IE3300 expansion module

Managed by
Cisco IOS CLI / SNMP / NETCONF

Use case
Fiber uplinks and extended reach in rugged industrial edge networks.

Where it fits (and when to choose something else)

Perfect for:

• Industrial access and aggregation with fiber backhaul

• Deployments needing extended reach between sites/facilities

• Environments with vibration, heat/cold, or electrical noise

• Networks using multimode or single-mode fiber optics

Choose something else if:

• You need copper access instead → PoE/GE modules (e.g., IEM-3300-8P)

• You need multigigabit fiber → higher-speed modules if supported

• You don’t need ruggedization → enterprise SFP fiber switches

TL;DR

IEM-3300-8S is Cisco’s rugged 8-port SFP fiber expansion module for the IE3300 Series:
a flexible way to add industrial-rated fiber connectivity and extended reach to your edge network.