IE-3105-18T2C-E – 18x1G Copper Ports – 2x1G Combo Uplinks

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IE-3105-18T2C-E Description

The IE-3105-18T2C-E is a Cisco Catalyst IE3105 Rugged Series industrial switch for DIN-rail cabinets that need dense Gigabit copper access and Layer 2 NAT. The switch has 18 10/100/1000 RJ45 ports and two dual-media combo uplinks, with dual DC inputs from 12V to 48V nominal and 36.7 W power consumption. Layer 2 NAT applies only to the uplink ports GigabitEthernet1/1 and 1/2, and the switch has no PoE budget.

Quick Specs

Parameter

Specification

Product ID

IE-3105-18T2C-E

Product type

DIN-rail industrial Ethernet switch

Default software license

Network Essentials

Total ports

20 Gigabit Ethernet ports

Downlink ports

18 x 10/100/1000 RJ45 copper ports

Uplink ports

2 x 1000BASE-T/1000BASE-X dual-media combo ports

FPGA data path

Yes

Layer 2 NAT scope

IE3105 uplink ports GigabitEthernet1/1 and GigabitEthernet1/2

PoE role

Non-PoE data model with no PoE budget listed

Power input

Dual DC inputs

Nominal input voltage

12V to 48V nominal

Absolute input voltage

9.6V to 60V absolute

Power consumption

36.7W

Product Performance

Ports
Forwarding Rate
MAC Addresses

Key Features

Layer 2 NAT On The Uplinks

Layer 2 NAT applies to GigabitEthernet1/1 and 1/2 only. It translates IPv4 unicast with one-to-one mappings, up to 128 rules.

FPGA Data Path

The IE3105 models are the only members of the IE3100 family with an FPGA data path, which is what enables Layer 2 NAT.

18 Copper Downlinks

Eighteen Gigabit RJ45 ports let one switch serve a full machine line with no PoE and no SFP downlinks.

Dual-Media Uplink Pair

Each uplink runs as copper or as a 100M or 1G SFP. The SFP side takes priority when both are connected, unless the media type is set manually.

36.7 W Power Draw

The 36.7 W consumption on a 12V to 48V nominal supply, up to 4.2 A, sets the supply size for the cabinet.

Larger Chassis

At 5.00 x 4.30 x 5.08 in. and 2.8 lb, the switch needs more DIN-rail width than the 8-port models.

Application Scenarios

Large Machine Line Cabinet

A cabinet serving a long production line connects up to 18 PLCs, drives and I/O blocks over copper, with the combo uplinks carrying traffic to the plant network.

Duplicate-IP Machine Integration

A machine builder can deploy identical machine networks behind the switch and use Layer 2 NAT on the uplinks to present each one to the plant network with unique IPv4 addresses.

Transport Roadside Cabinet

In a roadside cabinet, the switch aggregates cameras and controllers that are powered separately, and hands traffic off over copper or SFP fiber depending on the site.

Product Comparison

Parameter

IE-3105-18T2C-E

IE-3100-18T2C-E

IE-3105-8T2C-E

Total ports

20

20

10

Downlink interfaces

18 x 10/100/1000 RJ45

18 x 10/100/1000 RJ45

8 x 10/100/1000 RJ45

Uplink ports

2 x 1000BASE-T/1000BASE-X combo

2 x 1000BASE-T/1000BASE-X combo

2 x 1000BASE-T/1000BASE-X combo

PoE power budget

Not applicable

Not applicable

Not applicable

Nominal input voltage

12V to 48V

12V to 48V

12V to 48V

FPGA data path

Yes

No

Yes

Layer 2 NAT

Supported

Not supported

Supported

Power consumption

36.7 W

36.7 W

28 W

MTBF

642,050 hours

642,050 hours

774,680 hours

IE-3105-18T2C-E and IE-3100-18T2C-E share 18 copper ports, two combo uplinks, Network Essentials and 36.7W power consumption, and what separates them is the FPGA data path and Layer 2 NAT, which only the IE3105 model has, applied to its uplink ports. Projects that do not need Layer 2 NAT can order IE-3100-18T2C-E with the same port layout. Where eight copper downlinks are enough, IE-3105-8T2C-E keeps the IE3105 feature set on 10 ports and 28W, against 20 ports for this model. All three PIDs have no PoE budget, so any design that must power endpoints from the switch has to look outside this group.

Ordering Checklist

  • Power supply: Order a separate DIN-rail supply such as PWR-IE50W-AC= (50W, AC 100-240V) or PWR-IE50W-AC-L=. The ordering table lists no default power supply, so the switch arrives with nothing to power it.
  • SD card: Add SD-IE-1GB= or SD-IE-16GB= if configuration backup is wanted. The card is optional and not shipped by default, so a replacement switch cannot reload its configuration from it unless ordered.
  • DIN-rail mounting: Add STK-RACK-DINRAIL= if the switch goes into a 19-inch rack instead of a DIN rail. The rack kit is a separate item, and the data sheet does not say whether DIN-rail or rack hardware ships with the switch.
  • Uplink optics: Choose Cisco-listed 100M or 1G SFPs for the two dual-media uplinks, using -40 to +85°C industrial-grade SFPs for utility, rail or marine sites. Each uplink uses either the SFP or the RJ45 side.
  • Subscription: Optionally add Catalyst Center Essentials subscription IE3100-DNA-E-M (up to 24 ports) with a -1Y, -3Y, -5Y, -7Y or -10Y term. IE-3105-18T2C-E is covered by the Network Essentials license with no separate license PID, so this is the only license line that can be added.

Optional Add-ons

Model

Description

PWR-IE50W-AC=

Cisco Industrial Ethernet 50W AC power supply option for IE deployments

PWR-IE50W-AC-L=

Cisco Industrial Ethernet 50W AC low-profile power supply option

PWR-IE65W-PC-DC=

Cisco Industrial Ethernet 65W DC power supply option

PWR-IE65W-PC-AC=

Cisco Industrial Ethernet 65W AC power supply option

GLC-SX-MM-RGD=

Cisco rugged 1000BASE-SX SFP listed for IE3100 SFP support

GLC-LX-SM-RGD=

Cisco rugged 1000BASE-LX/LH SFP listed for IE3100 SFP support

GLC-ZX-SM-RGD=

Cisco rugged 1000BASE-ZX SFP listed for IE3100 SFP support

SD-IE-16GB=

Cisco IE 16GB SD card option for industrial Ethernet switches

IE-3105-18T2C-E Front Panel Overview

The illustrations in this section provide an overview of the variety of components available on the various switch models in this product family. Not all models are illustrated.

Number

Feature

Number

Feature

1

Dual-media SFP ports (uplinks)

6

Power connectors A and B

2

Dual-media copper ports (uplinks)

7

RJ-45 console connector

3

1000BASE-T ports (downlinks)

8

Express Setup button

4

SD card slot and USB micro port cover

9

Alarm connector

5

Protective ground connection

 

 

Specifications

Parameter Specification Parameter Specification
Product ID IE-3105-18T2C-E Product type DIN-rail industrial Ethernet switch
Default software license Network Essentials Total ports 20 Gigabit Ethernet ports
RJ45 copper downlinks 18 x 10/100/1000 ports Dual-media uplinks 2 x 1000BASE-T/1000BASE-X combo ports
Fixed SFP-only ports No fixed SFP-only ports listed for this PID FPGA data path Yes
Layer 2 NAT scope IE3105 uplink ports GigabitEthernet1/1 and GigabitEthernet1/2 PoE budget No PoE budget listed for this data model
Power input Dual DC inputs Nominal input voltage 12V to 48V
Absolute input voltage 9.6V to 60V Max current at 12V 4.2A
Max current at 24V 2.6A Max current at 48V 1.3A
Power consumption 36.7W DRAM 4GB
Flash 1.5GB SD card capacity 1GB, 4GB, or 16GB optional SD card
Removable storage note SD card is optional and not shipped by default Alarm I/O 2 dry-contact alarm inputs and 1 alarm output
Console port 1 RS-232 via RJ45 and 1 micro USB Mounting DIN rail
Operating system Cisco IOS XE Forwarding rate 29.76 Mpps
Forwarding bandwidth 20 Gbps Queues 8 egress queues
MAC addresses 8000 VLAN scale 256 VLANs
IPv4 indirect routes 2000 Operating temperature -40C to 75C in blower-equipped cabinet
Storage temperature -40C to 85C Operating humidity 5% to 95% noncondensing
Operating altitude Up to 15000 ft with no temperature derating Ingress protection IP30
MTBF 642,050 hours Industrial protocol support EtherNet/IP CIP, Modbus, SCADA, GOOSE, and PROFINET MRP
Management Cisco Catalyst Center, WebUI, CLI, SNMP, and open APIs L2NAT rule scale 128 Layer 2 NAT rules

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    Maximum effort on the shipping! Got here super fast. Chimichangas!

Questions & Answers

  • How many IPv4 indirect routes does IE-3105-18T2C-E support?

    IE-3105-18T2C-E supports 2000 IPv4 indirect routes. That is the routing table limit when the switch routes between VLANs and uses static routes, so the design must stay below it.
  • What input current does IE-3105-18T2C-E draw at 24V and 48V?

    IE-3105-18T2C-E draws a maximum of 2.6 A at 24V and 1.3 A at 48V. The DC supply must also cover the 12V figure when the cabinet is fed at 12V, so size the breaker for the worst case.
  • Up to what altitude does IE-3105-18T2C-E run without temperature derating?

    IE-3105-18T2C-E runs up to 15000 ft with no temperature derating. Its operating range of -40C to 75C therefore applies unchanged at high-altitude sites, provided the cabinet is blower-equipped.
  • How much memory and flash does IE-3105-18T2C-E have?

    IE-3105-18T2C-E has 4 GB of DRAM and 1.5 GB of flash. The flash holds the Cisco IOS XE image and configuration files, so keep spare room for a second image when you stage an upgrade.

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