Cisco IEM-3300-16T 16-Port Copper Expansion Module

IEM-3300-16T: Cisco IEM-3300 sixteen-port copper expansion module for IE3300 and IE3400

The IEM-3300-16T (spare order code IEM-3300-16T=) adds sixteen 10/100/1000 copper ports to an IE3300 or IE3400 base. It is the densest non-PoE copper module in the range. Seven Star LLC supplies IEM-3300-16T in Oman and the GCC as an independent supplier based in Muscat, not affiliated with the manufacturer.

Attached to a 10-port base, it brings the system to 26 Gigabit ports in one logical switch, which is the maximum port count of the series. It does not carry PoE, so it is meant for PLCs, drives, remote I/O, meters and other devices that have their own power supply.

Decoding the part number IEM-3300-16T

The module number follows the series naming. The table reads each element of IEM-3300-16T and shows the other values used across the IEM-3300 range.

IEM-3300-16T technical specifications

How the IEM-3300-16T behaves in the network

The module’s sixteen ports are switched by the base at line rate. For a drive hall or a PLC room, that means all sixteen devices share the uplinks of the base, so the oversubscription ratio is set by the uplinks: two 1G SFP ports on a 1G base or two SFP+ ports on a 10G base. With sixteen modules ports plus the eight base ports, the design should check that typical traffic stays well within the uplinks.

Unlike PoE modules, it works with any base because it draws no PoE power, and its consumption of 12 W is among the lowest per port in the range. On an IE3400 base, the datasheet notes that IEM-3300 modules prevent SGT and SGACL, which only IEM-3400 modules support.

Where IEM-3300-16T fits: compatible and related parts

The IEM-3300-16T has sibling modules for other port mixes. IEM-3300-14T2S= gives fourteen copper and two SFP ports in the same body, IEM-3300-16P= is the PoE version, and IEM-3300-8T= is the eight-port copper module in a narrower body. The bases that accept it are IE-3300-8T2S, IE-3300-8P2S, IE-3300-8T2X, IE-3300-8U2X, IE-3400-8T2S and IE-3400-8P2S.

Selection and ordering checklist for IEM-3300-16T

• Confirm that no port needs PoE; otherwise choose IEM-3300-16P.
• Check uplink capacity against sixteen additional ports.
• Verify rail space for the wider 3.6 in module.
• If the base is an IE3400 with TrustSec plans, consider IEM-3400-8T instead.
• Update the power supply calculation for 12 W extra.

Installation, commissioning and maintenance

The IEM-3300-16T 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. Because sixteen ports concentrate many cables on the front, plan cable routing and labeling before installation so that service staff can trace each port to its device.

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

The IEM-3300-16T is useful in a motor control center or pump hall where many drives and soft starters need Ethernet connections in one cabinet. It keeps the wiring compact and avoids a second managed switch.

In a water treatment or desalination plant, a 26-port stack of a 10-port base and this module can serve a full PLC rack plus instruments with a single pair of fiber uplinks.

IEM-3300 expansion modules compared

Information to send with an RFQ for IEM-3300-16T

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-3300-16T 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)
• Base switch model and license
• Number of copper devices and expected traffic
• 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-3300-16T 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-3300-16T.