4/8 port 10/100BaseT Switch with PoE + 2/3 Gigabit SFP slots


  • 100M managed industrial grade L2 switches with 4 or 8  10/100Base-T ports and 2 or 3 GbE/100M SFP ports which also supports PoE+/PSE
  • Rugged DIN rail or wall mountable enclosures
  • Standard / wide temperature  models
  • Regulated PoE output voltage
  • PoE - 30W per Port
  • Cable diagnostics, identifies opens/shorts distance
  • μ-Ring for redundant cabling, recovery time<10ms in 250 devices
  • IEEE 1588 PTP V2 for precise time synchronization
  • Centralized Management Tool


These Fast Ethernet switch models are managed industrial grade L2 switches with 8/4 10/100Base-T ports and 3/2 GbE/100M SFP ports which also supports PoE+/PSE and provide stable and reliable transmission. Housed in rugged DIN rail or wall mountable enclosures, these switches are designed for harsh environments, such as industrial networking. They are an ideal solution for Smart City, surveillance, Intelligent traffic control systems, production automation applications and support up to 8/4 PoE/PoE+ (IEEE 802.3af/IEEE 802.3at) ports which can provide 15.4/30watts power output per port for connecting with heavy-duty industrial PoE devices, such as PTZ IP surveillance cameras, high-performance wireless access points, digital signage and IP phones. (See Figure). Standard operating temperature range models (-10 to 60°C) and wide operating temperature range models (-40 to 75°C) fulfill the special needs of industrial automation applications.

Precision Time Protocol

These units support IEEE1588 PTP, which provides a method to precisely synchronize computers over the Local Area Network.  PTP can synchronise multiple devices to within 100 nanoseconds on a networks which support IEEE-1588.

PoE application with IEEE1588 PTP timing

Technical Notes

What is Power over Ethernet ?

Power over Ethernet, commonly abbreviated to PoE, is a technology that enables DC power to be delivered over the same twisted pair copper cabling as the data. This allows end devices such as IP phones, CCTV cameras and wireless access points to receive power across the network and avoids the need to install electrical cabling and a power source at the remote end.


Item Description

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 Fiber-Optic
IEEE 802.3af PoE (Power over Ethernet)
IEEE 802.3at PoE+ (Power over Ethernet enhancements)
IEEE 802.1d STP (Spanning Tree Protocol)
IEEE 802.1w RSTP (Rapid Spanning Tree Protocol )
IEEE 802.1s MSTP (Multiple Spanning Tree Protocol)
ITΜ-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 802.3ac Max frame size extended to 1522Bytes
IEEE 802.3ad Link aggregation for parallel links with LACP(Link Aggregation Control Protocol)
IEEE 802.3x Flow control for Full Duplex
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)
IEEE 802.3az EEE (Energy Efficient Ethernet)

Switch Architecture

Back-plane (Switching Fabric):
7.8Gbps (IFS-402GSM-4PH24)
10.6Gbps (IFS-803GSM-8PH24)
Full wire-speed

Flow Control

IEEE 802.3x for full duplex mode Back pressure for half duplex mode

Network Connector

4x 10/100Base-TX RJ-45 + 2x 100/1000Base-X SFP slot (IFS-402GSM-4PH24)
8x 10/100Base-TX RJ-45 + 3x 100/1000Base-X SFP slot (IFS-803GSM-8PH24)
RJ-45 UTP port support Auto negotiation speed, Auto MDI/MDI-X function, SFP ports support 100/1000M with DDMI


RS-232 (RJ-45)

Network Cable

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



Power Supply

Redundant Dual DC 24/48V (20~57VDC) Input power (Removable Terminal Block)
Built-in very high efficiency booster(94~97%) to rise up 52VDC for PoE output
Regulated PoE output voltage (52VDC) to stabilize PoE device, and guarantee delivery PoE power distance to 100metre

Jumbo Frame


MAC Address Table



Operating Temperature -10 ~ 60°C (IFS-402GSM-4PH24, IFS-803GSM-8PH24) -40 ~ 75°C (IFS-402GSM-4PHE24, IFS-803GSM-8PHE24)
Operating Humidity 5% to 95% (Non-condensing)
Storage Temperature -40 ~ 85°C


Rugged Metal, IP30 Protection, Fanless


106 x 62.5 x 135 mm (D x W x H) (IFS-402GSM-4PH24)
106 x 72 x 152 mm (D x W x H) (IFS-803GSM-8PH24)


0.715kg (IFS-402GSM-4PH24)
0.96kg (IFS-803GSM-8PH24)

Installation Mounting

DIN Rail mounting, or wall mounting (Optional)


674,963 Hours (IFS-402GSM-4PH24)
466,542 Hours (IFS-803GSM-8PH24)


5 years


EMI (ElectromagneticInterference) FCC Part 15 Subpart B Class A,CE
Railway Traffic EN50121-4
Traffic control NEMA TS2
Immunity for Heavy Industrial Environment EN61000-6-2
Emission for Heavy Industrial Environment EN61000-6-4
EMS (Electromagnetic Susceptibility) Protection Level EN61000-4-2 (ESD) Level 3, Criteria B, EN61000-4-3 (RS) Level 3, Criteria A, EN61000-4-4 (Burst) Level 3, Criteria A, EN61000-4-5 (Surge) Level 3, Criteria B, EN61000-4-6 (CS) Level 3, Criteria A, EN61000-4-8 (PFMF, Magnetic Field) Field Strength: 300A/m, Criteria A
Safety UL60950-1
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6

Ordering Information

Order Code Description
CT-IFS-803GSM-8PH24 8x 10/100Base RJ45 + 3x 100/1000Base SFP with 8x PoE Managed Switch 180W, 24/48VDC -10~60°C
CT-IFS-803GSM-8PHE24 8x 10/100Base RJ45 + 3x 100/1000Base SFP with 8x PoE Managed Switch180W, 24/48VDC -40~75°C
CT-IFS-402GSM-4PH24 4x 10/100Base RJ45 + 2x 100/1000Base SFP with 4x PoE Managed Switch120W, 24/48VDC -10~60°C
CT-IFS-402GSM-4PHE24 4x 10/100Base RJ45 + 2x 100/1000Base SFP with 4x PoE Managed Switch120W, 24/48VDC -40~75°C
CT-IFS-1604GSM 16 x 10/100Base RJ45 + 4 x 100/1000Base SFP with 4x PoE Managed Switch120W, 24/48VDC -10~60°C
CT-IFS-1604GSM-E 16 x 10/100Base RJ45 + 4 x 100/1000Base SFP with 4x PoE Managed Switch120W, 24/48VDC -40~70°C

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