IEM-3400-8P – 8xGE PoE Ports – IE3400 Expansion Module

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IEM-3400-8P Description

The IEM-3400-8P is a Cisco Catalyst IE3400 Rugged Series expansion module that adds powered copper ports to an IE-3400-8P2S industrial switch. The module has eight Gigabit Ethernet PoE/PoE+ ports, draws 20W at 54V excluding PoE output, takes the system to 18 ports and raises the base switch PoE budget from 240W to 480W. PoE modules attach only to a PoE base switch, and expansion modules are not hot-swappable.

Quick Specs

Parameter

Specification

SKU

IEM-3400-8P

Cisco ordering PID

IEM-3400-8P=

Product type

Expansion module

Compatible base switch

Cisco IE-3400-8P2S

Added port count

8 ports

Port media

Gigabit Ethernet copper

PoE support

PoE and PoE+ supported

90-W PoE support

Not supported on this expansion module

Advanced hardware features

Yes

Total system ports with module

18 ports

Module power consumption

20 W at 54 V, excluding powered-device load

Hot-swap support

Expansion modules are not hot-swappable

Application Scenarios

Added PoE Ports In IE3400 Cabinets

In a factory-floor cabinet that already holds an IE-3400-8P2S, the module adds eight more PoE/PoE+ ports for cameras and wireless access points without replacing the base switch.

Powered-Down Module Installation

A maintenance crew attaches the module during a planned shutdown, because the module must go on with the switch de-energized.

Product Comparison

Parameter

IEM-3400-8P

IEM-3400-8T

IEM-3400-8S

IEM-3300-8P

Copper (RJ45) ports

Not applicable

8

Not applicable

Not applicable

PoE/PoE+ ports

8

Not applicable

Not applicable

8

SFP ports

Not applicable

Not applicable

8

Not applicable

Total system ports (including expansion module)

18

18

18

18

Power consumption

20W (measured at 54V)

12W

27W

14W (measured at 54V)

Compatible base switch

IE-3400-8P2S

IE-3400-8T2S or IE-3400-8P2S

IE-3400-8T2S or IE-3400-8P2S

IE-3300-8P2S, IE-3300-8U2X or IE-3400-8P2S

Advanced hardware features

Yes

Yes

Yes

No

IEM-3400-8P is the PoE/PoE+ copper module of the IEM-3400 group: it adds eight Gigabit copper ports with PoE/PoE+ and fits only the IE-3400-8P2S bases, while IEM-3400-8T carries eight copper ports without PoE and also fits IE-3400-8T2S. Where the added ports must be fiber, IEM-3400-8S provides eight Gigabit SFP ports with no PoE. IEM-3300-8P is the other eight-port PoE module in the table and also fits IE-3300-8P2S and IE-3300-8U2X, but its advanced hardware features are listed as No against Yes for IEM-3400-8P, and Cisco notes that an IEM-3300 module on an IE3400 base makes SGT/SGACL unavailable. None of the four modules supports 90-W PoE, and each gives 18 ports in total.

PoE Power Planning

Planning item

Cisco-confirmed fact

Buyer check

PoE input voltage

PoE requires 48 VDC and PoE+ requires 54 VDC on the switch system

Match the field power supply plan to the endpoint class

IE-3400-8P2S PoE budget

Cisco lists 240 W without the expansion module and 480 W with the expansion module

Confirm the full endpoint load before releasing the quote

Expansion module draw

IEM-3400-8P module power is 20 W at 54 V, excluding powered-device load

Do not count the module electronics draw as endpoint PoE budget

90-W PoE boundary

Cisco marks 90-W PoE support as No for IEM-3400-8P

Do not use this SKU for endpoints that require 90-W PoE

Ordering Checklist

  • Supported hosts: Pair the module with the IE3400 PoE base switch IE-3400-8P2S. The PoE module pairs only with a PoE base switch; the non-PoE IE3400 8T2S base cannot take it.

Specifications

Parameter Specification Parameter Specification
Product ID IEM-3400-8P Cisco ordering PID IEM-3400-8P=
Product type Expansion module Compatible base switch Cisco IE-3400-8P2S
Total system ports with module 18 ports Expansion port count 8 ports
Port media Gigabit Ethernet copper PoE standards PoE and PoE+ supported
90-W PoE support No Advanced hardware features Yes
Module power consumption 20 W at 54 V, excluding powered-device load PoE input requirement 48 VDC for PoE or 54 VDC for PoE+
IE-3400-8P2S PoE budget with module 480 W Expansion module count One expansion module attached to a base system at a time
Hot-swap support Not hot-swappable Installation warning Do not attach the expansion module while the switch is energized
Primary comparison SKUs IEM-3400-8T, IEM-3400-8S, IEM-3300-8P

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    Ordered again for our backup location. Same quality as the first. Took a little longer to clear customs than expected, otherwise excellent.

Questions & Answers

  • How much PoE budget can be configured on an IE3400 PoE base switch with IEM-3400-8P and a 480 W supply?

    The maximum PoE budget to configure is 413 W. Per the Cisco IE3500 PoE configuration guide, an IE3400 PoE base switch with an attached IEM-3400-8P draws 67 W itself, and 480 W minus 67 W leaves 413 W for powered devices. Size the endpoint load against 413 W, not the full supply rating.
  • How many expansion modules can attach to one base switch together with IEM-3400-8P?

    One expansion module attaches to a base system at a time. A base switch with IEM-3400-8P therefore reaches 18 ports, and a second expansion module cannot be added to raise that count. Plan the eight added PoE and PoE+ ports as the single expansion step for that base switch.
  • Does IEM-3400-8P support 90-W PoE on its eight ports?

    No. IEM-3400-8P supports PoE and PoE+ only, and 90-W PoE is not supported on this module. Endpoints that need 90-W power cannot be powered from its eight Gigabit copper ports, so check each endpoint class against PoE+ before the module is ordered.
  • Can IEM-3400-8P be attached to an IE3400 PoE base switch that is powered on?

    No. IEM-3400-8P is not hot-swappable, and the base switch must be de-energized before the module is attached or removed. Schedule the installation for a planned shutdown. The module pairs only with a PoE base switch, and a non-PoE IE3400 base cannot take it.

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DataSheet Downloads

  • IEM-3400-8P Datasheet