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

IEM-3300-8S: Cisco IEM-3300 eight-port SFP fiber expansion module for IE3300 and IE3400

The IEM-3300-8S (spare order code IEM-3300-8S=) is the fiber module of the range, adding eight 100/1000 SFP ports to an IE3300 or IE3400 base. Seven Star LLC supplies IEM-3300-8S in Oman and the GCC as an independent supplier based in Muscat, not affiliated with the manufacturer.

It suits cabinets that terminate several fiber links, for example a switchyard or pipeline station where distances exceed the reach of copper. The ports accept the industrial-rated SFPs listed in the series datasheet, from 100BASE-FX multimode to long-reach single-mode.

Decoding the part number IEM-3300-8S

The module number follows the series naming. The table reads each element of IEM-3300-8S and shows the other values used across the IEM-3300 range.

IEM-3300-8S technical specifications

How the IEM-3300-8S behaves in the network

The module provides eight fiber ports at Fast Ethernet or Gigabit speed, depending on the SFP. Because the SFPs are field-replaceable, the same module can serve a short multimode link in one cabinet and a long single-mode link in another, which helps with spares planning.

The datasheet notes that non-industrial SFPs (extended or commercial temperature) require the switch operating temperature to be derated, so in hot enclosures industrial-class optics are the safe choice. Digital optical monitoring support varies by SFP type in the datasheet table, so check it for the optics you select.

Where IEM-3300-8S fits: compatible and related parts

The IEM-3300-8S is one of several fiber options. IEM-3300-6T2S= and IEM-3300-14T2S= combine copper with two SFP ports, while on the IE3400 side IEM-3400-8S= is the eight-port SFP module of that generation. The base switches already have two SFP or SFP+ uplinks, so the module is for cabinets with many fiber terminations.

Selection and ordering checklist for IEM-3300-8S

• Count fiber links and confirm eight ports are needed rather than the two on the base.
• Select SFPs by reach, fiber type and temperature class from the datasheet table.
• Check that the supply covers 19 W extra.
• On an IE3400 base with TrustSec, consider IEM-3400-8S.
• Plan fiber patching and labeling at the cabinet.

Installation, commissioning and maintenance

The IEM-3300-8S 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. Keep dust caps on unused SFP ports and clean fiber connectors before insertion, since contamination is a leading cause of marginal links.

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

Fiber-heavy cabinets are common in oil and gas gathering sites, pipeline pump stations and electrical switchyards, where electrical noise or distance rules out copper. The IEM-3300-8S lets one base switch terminate eight such links.

In a desalination plant it can serve as a fiber patch point between intake, pumping and treatment buildings, using single-mode optics for the long runs.

IEM-3300 expansion modules compared

Information to send with an RFQ for IEM-3300-8S

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-3300-8S 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
• SFP types, fiber type and distances
• 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-3300-8S 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-3300-8S.