28 Dual rate SFP Ethernet switch with 4 GbE combo ports (RJ45/SFP)


  • Industrial grade hardened design 
  • 28 GbE SFP ports with 4 combo GbE ports
  • redundant, isolated power supplies (2 AC, 2 DC, AC + DC)
  • STP, RSTP, MSTP, ITU-T G.8032 Ethernet Ring Protection Switching (ERPS) for redundant cabling
  • μ-Ring for Redundant Cabling, recovery time<50ms in 250 devices
  • Provides SmartConfig for quick and easy mass Configuration
  • Supports SmartView for Centralized Management


The IGS-S2804TM is an industrial grade, hardened, L2 Ethernet switch, equipped with 28 GbE SFP ports with 4 combo GbE ports. This model is a fanless design with redundant, isolated power supplies  - 2 AC,  2 DC or AC + DC -  and can be mounted in 19-inch EIA standard rack.  IGS Series are certified EN61000-(Electromagnetic Susceptibility Protection) with many industrial-grade standards and are ideal for deployments in harsh environments to deliver mission-critical network services. 


The units are equipped with both RADIUS and TACACS+ authentication for use in sensitive networks where security is paramount. SSL & SSH2 are also supported.

Resilient ring

Supports up to 5 rings in one device.  Each can support μ-Ring, μ-Chain or Sub-Ring type for the ultimate in flexibility.   This managed Ethernet switch is an ideal solution for Industrial automation, smart city & surveillance,Intelligent traffic control systems and production automation applications.

Fibre ring installation

Data Sheet


Item Description

See datasheet below


IEEE 802.3 10Base-T 10Mbit/s Ethernet
IEEE 802.3u 100Base-TX, 100Base-FX, Fast Ethernet
IEEE 802.3ab 1000Base-T Gbit/s Ethernet over twisted pair
IEEE 802.3z 1000Base-X Gbit/s Ethernet over Fibre-Optic
IEEE 802.1d STP (Spanning Tree Protocol)
IEEE 802.1w RSTP (Rapid Spanning Tree Protocol)
IEEE 802.1s MSTP (Multiple Spanning Tree Protocol)
ITU-T G.8032 /Y.1344 ERPS (Ethernet Ring Protection Switching)
IEEE 802.1Q Virtual LANs (VLAN)
IEEE 802.1X Port based and MAC based Network Access Control, Authentication
IEEE 802.3ad Link aggregation for parallel links with LACP(Link Aggregation Control Protocol)
IEEE 802.1ad Stacked VLANs, Q-in-Q
IEEE 802.1p LAN Layer 2 QoS/CoS Protocol for Traffic Prioritization
IEEE 802.1ab Link Layer Discovery Protocol (LLDP)


4094 IEEE 802.1Q VLAN VID

Switch Architecture

Back-plane (Switching Fabric): 56Gbps
(Full wire-speed)

Network Connector

28x 100/1000Base-X SFP with 4x GbE Combo (UTP/ SFP)

Network Connector

Port 25~28 GbE SFP support 1000M
Port 21~24 GbE SFP/RJ45 UTP combo (dual speed 100/1000M)
Port 1~20 GbE SFP support dual speed (100/1000M)
SFP support 100/1000M dual speed with DDMI
RJ-45 UTP port support 10/100/1000Base-T(X), Auto negotiation speed, Auto MDI/MDI-X function


RS-232 (RJ-45)

Network Cable

UTP/STP above Cat. 5e cable
EIA/TIA-568 100-ohm (100m)

Power Supply

Redundant 2x isolated High Voltage AC/DC input power (-AA model)
Redundant 2x Isolated Low Voltage DC Input power (-DD model)
Redundant 1x isolated Low Voltage DC and 1x High Voltage AC/DC input power (-AD model)
Low Voltage DC (D): Isolated 24/48V (18~60VDC),
Removable Terminal Block
High voltage AC/DC (A): Isolated 110/220VAC (85VAC~264VAC)
Supports negative voltage power input

Jumbo Frame


MAC Address Table


Memory Buffer

4M Bytes for packet buffer

Alarm Relay Contact

Relay outputs with current carrying capacity of 1A @24VDC, 2-Pin removable terminal block

Operating Temperature

-10 ~ 60°C (IGS-S2804TM)
-40 ~ 75°C (IGS-S2804TM-E)

Operating Humidity

5% to 95% (Non-condensing)

Storage Temperature

-40 ~ 85°C


Rugged Metal, IP30 Protection, Fanless


315 x 440 x 44 mm (D x W x H)


4.755kg (IGS-S2804TM-AA)
4.26kg (IGS-S2804TM-DD)
4.51kg (IGS-S2804TM-AD)

Installation Mounting

19" rack mount

Ordering Information

Order Code Description
CT-IGS-S2804TM-AA 28x 100/1000Base SFP with 4x GbE Combo (RJ45/SFP) 110/220VAC + 110/220VAC power -10~60˚C
CT-IGS-S2804TM-DD 28x 100/1000Base SFP with 4x GbE Combo (RJ45/SFP) Isolated 24/48VDC + Isolated 24/48VDC power-10~60˚C
CT-IGS-S2804TM-AD 28x 100/1000Base SFP with 4x GbE Combo (RJ45/SFP) 110/220VAC + Isolated 24/48VDC power-10~60˚C
CT-IGS-S2804TM-EAA 28x 100/1000Base SFP with 4x GbE Combo (RJ45/SFP) 110/220VAC + 110/220VAC power-40~75˚C
CT-IGS-S2804TM-EDD 28x 100/1000Base SFP with 4x GbE Combo (RJ45/SFP) Isolated 24/48VDC + Isolated 24/48VDC power -40~75˚C
CT-IGS-S2804TM-EAD 28x 100/1000Base SFP with 4x GbE Combo (RJ45/SFP) 110/220VAC + Isolated 24/48VDC power -40~75˚C

More Information