4 GbE PoE++, 2 dual rate SFP Ethernet switch


  • Managed Industrial grade L2 Gigabit PoE switch that provides 4x 10/100/1000Base-T ports plus 2x 100/1000Base-X SFP ports with 4x PoE Ports
  • Enables power and data to be transferred via a single cable considerably reducing cabling and electrical wiring expenses
  • Housed in rugged DIN rail or wall mountable IP-30 enclosure
  • Standard operating temperature range (-10 to 60°C) or at wide operating temperature range (-40 to 75°C)
  • 48VDC (44~57VDC) redundant dual input power
  • Provides 4 port IEEE 802.3af / 802.3at PoE+ output, 60W per port, total 240W
  • Cable diagnostics, identifies opens/shorts distance
  • Provides 5 ring instances that each can support μ-Ring, μ-Chain or Sub-Ring type for flexible uses. Supports up to 5 rings in one device
  • μ-Ring for redundant cabling, recovery time<10ms in 250 devices
  • Provides SmartConfig for quick and easy mass Configuration*
  • Supports SmartView for Centralized Management*


Spec Text

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 802.3af 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
IEEE802.3ac 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): 12Gbps
Full wire-speed

Flow Control

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

Network Connector

4x 10/100/1000Base-T RJ-45 + 2x 100/1000Base-X SFP connector
RJ-45 UTP port supports Auto negotiation speed, Auto MDI/MDI-X function, SFP port supports 100/1000 dual speed with DDMI


RS-232 (RJ-45)

PoE standard & RJ-45 Pin Assignment

4x IEEE 802.3at/ 802.3af PoE+ 4 pairs PoE, 60W/port
End-Span, Alternative A and B mode.
Positive (V+) : RJ-45 pin 1, 2, 4, 5
Negative (V-) : RJ-45 pin 3, 6, 7, 8

Network Cable

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



Power Supply

Redundant Dual DC 48V (44~57VDC) input power, (Removable terminal block )
(50~57V input is recommended for IEEE802.3at PoE+ in 30W/ 60W applications)

PoE Power Budget

Maximum PoE Output power budget 60W / Per Port Total 240W

Jumbo Frame



Max frame size extended to 1522Bytes (allow Q-tag in packet)

MAC Address Table


Memory Buffer

512K Bytes for packet buffer

Alarm Relay Contact

Relay outputs with current carrying capacity of 1 A @24VDC

Removable Terminal Block

Provide 2 redundant power, alarm relay contact, 6 Pin


Operating Temperature -10 ~ 60°C (IGS-402SM-4PU) -40 ~ 75°C (IGS-402SM-4PUE)
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)



Ordering Information

Order Code Description
CT-IGS-402SM-4PU 4x GbE RJ45 + 2x 100/1000Base-X SFP with 4x 60W PoE Switch (240W, 48VDC)-10~60°C
CT-IGS-402SM-4PUE 4x GbE RJ45 + 2x 100/1000Base-X SFP with 4x 60W PoE Switch (240W, 48VDC) -40~75°C

More Information