Cisco IEM-3300-4MU 4-Port 2.5G 802.3bt PoE Module

IEM-3300-4MU: Cisco IEM-3300 four-port multigigabit 802.3bt expansion module

The IEM-3300-4MU (spare order code IEM-3300-4MU=) is the multigigabit module of the IEM-3300 range. It provides four copper ports that run at 1 Gb/s or 2.5 Gb/s and can deliver up to IEEE 802.3bt type 4 power. Seven Star LLC supplies IEM-3300-4MU in Oman and the GCC as an independent supplier based in Muscat, not affiliated with the manufacturer.

The module is aimed at Wi-Fi 6 access points and other devices whose uplink exceeds a single Gigabit and whose power draw is above PoE+. Because it is a PoE module, it needs a PoE base; the datasheet lists it for the IE3300 PoE bases and for the IE3400 PoE base.

Decoding the part number IEM-3300-4MU

The module number follows the series naming. The table reads each element of IEM-3300-4MU and shows the other values used across the IEM-3300 range.

IEM-3300-4MU technical specifications

How the IEM-3300-4MU behaves in the network

The four ports negotiate 1 Gb/s or 2.5 Gb/s with the connected device, so an access point that supports multigigabit can use its full radio capacity. The module is managed as part of the base and shares its VLAN, QoS and security policy.

Two points need care. First, the datasheet says the module does not support PTP, so devices that need hardware time stamping should be connected to base ports. Second, the datasheet refers to conditions for IEEE 802.3bt type 4 power in the hardware installation guide, so the supply and ambient limits for type 4 loads should be checked before the design is frozen.

Where IEM-3300-4MU fits: compatible and related parts

The IEM-3300-4MU is paired with the high-power bases: IE-3300-8U2X-E gives up to 480 W and 802.3bt support on the base itself, and IE-3400-8P2S gives 480 W with an expansion module. Other PoE modules are IEM-3300-8P= and IEM-3300-16P= for Gigabit PoE+ ports. For non-PoE ports, the copper modules IEM-3300-8T= and IEM-3300-16T= apply.

Selection and ordering checklist for IEM-3300-4MU

• Confirm that the base is a PoE base and that its supply covers type 4 power.
• Check whether any device needs PTP on the module ports; if so, connect it to the base.
• Count multigigabit devices; four ports are available per module.
• Verify the cable category for 2.5 Gb/s runs.
• Update the DIN rail supply calculation for the 20 W module and the PoE load.

Installation, commissioning and maintenance

The IEM-3300-4MU attaches to the side of a compatible base switch on the same DIN rail and becomes part of one logical switch with the base. The datasheet notes that single-wide modules add 2 in to the system width and double-wide modules add 3 in, so measure the cabinet rail before ordering and leave room for the whole stack. Use cabling suitable for 2.5 Gb/s at the lengths in the design, and check that connected devices negotiate the intended speed and power class when first powered.

After installation, confirm in the switch software that the module is recognised and that its ports come up with the expected speed and PoE state. Keep the ports on the module in the same VLAN plan as the base ports, and document which ports are on the module, since field staff will see them numbered separately from the base. For maintenance, a module is a field replaceable unit: keep one spare per site type and check its port LEDs and counters during routine rounds.

Power the combined stack from a supply sized for the base, the module consumption listed in the datasheet and any PoE load. If the supply is undersized, the stack will not deliver its rated PoE budget, so recalculate whenever a module is added.

Typical applications in Oman and the GCC

Typical users of the IEM-3300-4MU are sites adding Wi-Fi 6 access points along pipelines, plant roads and storage areas, where the access point needs both multigigabit uplink and high PoE power. One module serves up to four such devices from a single cabinet.

It is also used for fixed UHD cameras with analytics and for industrial gateways that draw power over four pairs. In hot cabinets the type 4 load adds heat, so the ventilation design matters.

IEM-3300 expansion modules compared

Information to send with an RFQ for IEM-3300-4MU

A short enquiry lets us confirm the exact part number, the software license and current availability without a second round of questions. Please include:

• Part number IEM-3300-4MU and quantity, noting that the spare version of the part ends with an equals sign
• The base switch it will attach to (IE-3300 or IE-3400 model, license -E or -A)
• Powered device models and their PoE class
• Base switch model, since a PoE base is required
• Delivery location and the project date

Documents and quotation

A datasheet for the Cisco Catalyst IE3300 Rugged Series is attached on this page. It lists the hardware configurations, power inputs, software feature sets and compliance tables that the specification table above summarises.

Seven Star LLC supplies IEM-3300-4MU in Oman and the GCC as an independent supplier based in Muscat, not affiliated with the manufacturer. Share your quantity, delivery location and project timeline, and we will reply with availability and lead time for the IEM-3300-4MU.