IEM-3300-16P - Catalyst IE3300 16-Port GE PoE+ Exp Module

Cisco rugged expansion module adding 16 Gigabit Ethernet PoE+ ports to the Catalyst IE3300 Rugged Series industrial switch, DIN-rail mountable, fanless design.

The Cisco IEM-3300-16P= (also listed as IEM-3300-16P) is a plug-in expansion module engineered for the Cisco Catalyst IE3300 Rugged Series of industrial Ethernet switches. It adds sixteen 10/100/1000 Mbps copper RJ-45 ports, all supporting PoE and PoE+ power delivery, expanding a base IE3300 switch to a total of 26 Gigabit Ethernet ports. The module attaches to the side of the base switch, operating as part of a single logical switching system rather than as a standalone device. Designed for harsh operational technology environments, it uses a fanless, convection-cooled chassis, DIN-rail mounting, and a wide operating temperature range, making it suitable for manufacturing, energy, transportation, mining, smart city, and extended enterprise deployments. It is commonly used to power IP cameras, wireless access points, sensors, and other PoE-powered industrial endpoints while consolidating data and power delivery over a single Ethernet connection.

• Manufacturer: Cisco Systems
• Product Family: Industrial Ethernet 3300
• Product Series: Catalyst IE3300 Rugged Series
• Model: IEM-3300-16P= / IEM-3300-16P
• Product Type: Ethernet switch expansion module
• Total Ports on Module: 16 x Copper RJ-45 10/100/1000 Mbps, all PoE/PoE+
• Total System Ports (with base switch): 26 Gigabit Ethernet ports
• PoE/PoE+ Budget: Up to 360W with all-GE base, up to 480W with IE3300 10G PoE base or IE3400 PoE base
• Power Consumption: 21W (module, non-PoE draw)
• Forwarding Rate: Line rate for all ports and all packet sizes
• Mounting: DIN rail
• Dimensions (H x W x D): Approx. 6 in x 3.4–3.6 in x 5.3 in (15.2 x 8.6–9.1 x 13.5 cm)
• Weight: Approximately 2.06–2.7 lbs (0.9–1.2 kg), figures vary by source
• Operating Temperature: -40°C to +70°C (one third-party source lists up to +75°C)
• Cooling: Fanless, convection-cooled
• MTBF: 1,043,520 hours (Telcordia Issue 3 predicted rating)
• Management Standards: IEEE 802.1D, 802.1p, 802.1q, 802.1s, 802.1w, 802.1x, 802.1AB (LLDP), 802.3ad (LACP), IEEE 1588v2 PTP
• Security/Software Features: QoS, VLANs, SNMP management support
• Operating System: Cisco IOS XE (on base IE3300 switch)
• Certifications: C1D2, ATEX, IEEE 1613, EN/IEC 61850-3, EN50121-4 (per industrial catalog listing)
• Compatible Base Platform: Cisco Catalyst IE3300 Rugged Series switches
• Warranty: Varies by reseller; Cisco manufacturer warranty status not consistently confirmed across sources
• Interfaces: 16 x 1000BASE-T (PoE+) RJ-45

• Adds 16 Gigabit Ethernet PoE/PoE+ copper ports to a Catalyst IE3300 base switch
• Expands total system port count to 26 Gigabit Ethernet ports
• Supports IEEE 802.3at PoE+ for powering cameras, APs, and sensors
• Fanless, convection-cooled design for silent, low-maintenance operation
• DIN-rail mountable for flexible industrial cabinet installation
• Wide operating temperature range suited to extreme environments
• High shock and vibration tolerance for rugged deployments
• Line-rate forwarding performance across all ports and packet sizes
• Supports advanced Layer 2 features including VLANs, LACP, and Rapid Spanning Tree
• Compact, space-efficient module footprint
• Integrates with base switch as a single logically managed system
• Supports SNMP-based network management

Used to expand PoE-powered Gigabit Ethernet connectivity on Cisco IE3300 Rugged Series industrial switches.

• Powering IP cameras and video surveillance systems in factories and utilities
• Connecting wireless access points across industrial and outdoor sites
• Expanding port density for manufacturing plant floor networks
• Supporting sensors and automation controllers in energy and utility infrastructure
• Extending enterprise networks into warehouses and distribution centers
• Enabling transportation and smart city infrastructure connectivity
• Field network upgrade projects requiring additional PoE ports without new switch hardware

• Expands PoE port density without new switch
• Fanless design reduces maintenance needs
• Rugged build withstands harsh conditions
• Simplifies cabling with combined power/data
• DIN-rail mounting eases installation
• Line-rate performance across all ports

• Dimensions: Approximately 6 in x 3.4–3.6 in x 5.3 in (15.2 x 8.6–9.1 x 13.5 cm)
• Weight: Approximately 2.06–2.7 lbs (0.9–1.2 kg)
• Mounting: DIN rail
• Cooling: Fanless, convection-cooled

Per available Cisco documentation and reseller listings, this expansion module is validated for use with:

• Cisco Catalyst IE-3300-8T2S-E/-A base switches
• Cisco Catalyst IE-3300-8P2S-E/-A base switches
• Cisco Catalyst IE3300 10G Uplink variant base switches
• Cisco Catalyst IE3400 PoE base switches (for extended 480W PoE budget)
• Other IEM-3300 series expansion modules in combined chassis configurations
• Industrial IP cameras and PoE/PoE+ powered surveillance equipment
• Wireless access points requiring PoE power
• Industrial sensors and automation controllers

Note: Full 480W PoE budget requires pairing with IE3300 10G PoE base or IE3400 PoE base variants; standard all-GE base switches support up to 360W total PoE budget.

• Cisco IEM-3300-16P= expansion module
• DIN rail mounting hardware (per standard IE3300 module packaging)

Q: What is the Cisco IEM-3300-16P used for?

A: It is an expansion module that adds 16 Gigabit Ethernet PoE+ copper ports to a Cisco Catalyst IE3300 Rugged Series switch, increasing the total system port count to 26 Gigabit Ethernet ports for industrial networking applications.

Q: Which switches are compatible with the IEM-3300-16P?

A: This module is compatible with Cisco Catalyst IE3300 Rugged Series base switches, including the IE-3300-8T2S and IE-3300-8P2S variants, and can pair with IE3300 10G or IE3400 PoE base units for extended power budgets.

Q: Does the IEM-3300-16P support Power over Ethernet?

A: Yes. All 16 ports support PoE and PoE+ (IEEE 802.3at), allowing the module to power devices such as IP cameras, wireless access points, and sensors directly through the Ethernet connection.

Q: What is the operating temperature range of the IEM-3300-16P?

A: According to reseller documentation, the module operates reliably across an industrial temperature range of approximately -40°C to +70°C, with one source citing up to +75°C.

Q: Is the IEM-3300-16P fanless?

A: Yes, the module uses a fanless, convection-cooled design, making it suitable for dust-prone, space-constrained, and silent-operation industrial environments.

Q: How is the IEM-3300-16P mounted?

A: The module is DIN-rail mountable, consistent with the mounting design used across the Cisco Catalyst IE3300 Rugged Series product line.

Q: What is the maximum PoE power budget available when using this module?

A: The IEM-3300-16P supports a PoE budget of up to 360W when paired with an all-GE IE3300 base switch, or up to 480W when paired with an IE3300 10G PoE base or IE3400 PoE base switch.

Q: What management standards does the IEM-3300-16P support?

A: As part of the IE3300 system, it supports IEEE standards including 802.1Q VLANs, 802.1w Rapid Spanning Tree, 802.3ad Link Aggregation (LACP), 802.1x port authentication, and IEEE 1588v2 Precision Time Protocol.