Leading Edge Networking Solutions


Industrial Managed Switch 4x10/100/1000Base-T (PoE+) + 2x100/1000Base-X SFP

Managed industrial grade Gigabit PoE (Power over Ethernet) switches with 4 ports 10/100/1000Base-T PoE ports and 2  Fast/Gigabit Ethernet SFP ports. With dual power input design, the series models can provide redundancy mechanism for critical applications that need always-on connections. These switches can also operate either at standard operating temperature range (-10 to 60°C) or at wide operating temperature range (-40 to 75°C) so as to fulfill the special needs of industrial automation applications. Housed in rugged DIN rail or wall mountable IP-30 enclosures, these switches are perfect choices for harsh environments, such as industrial networking, intelligent transportation systems (ITS) and are also suitable for many military and utility market applications where environmental conditions exceed commercial product specifications.
Apart from specially-designed outlook and hardware features, the Ethernet switches also support a wide variety of management functions, including STP/RSTP/MSTP/ ITU-T G.8032 Ring and multiple u-Ring for redundant cabling, advanced PoE management functions such as PoE device auto-checking and auto reset, PoE power on/off weekly scheduling, layer 2 Ethernet IGMP, VLAN, QoS, Security, IPv6, bandwidth control, port mirroring, cable diagnostics and Green Ethernet. Additionally, these switches can work with CTC Union's proprietary SmartView that offers user-friendly and centralized network management platform and provides to network administrators to monitor and configure these connected switches remotely.


  • 24/48VDC redundant dual input power with built-in very high efficiency booster(94~97%) to rise up 55 VDC for PoE output
  • Constant and regulated PoE output voltage at 55VDC. Provides 4 port IEEE802.3 af/at PoE output (30W per Port)
  • Advanced PoE Management, PoE PD Failure Auto Checking and auto reset when PD fail, PoE scheduling
  • UL60950-1, CE, FCC, NEMA TS2, Rail Traffic EN50121-4 certified - Industrial grade EMS, EMI, EN61000-6-2, EN61000-6-4
  • Supports Green Ethernet IEEE802.3az EEE (Energy Efficient Ethernet)
  • STP, RSTP, MSTP, ITU-T G.8032 Ethernet Ring Protection Switching(ERPS) for redundant cabling
  • Provides 5 ring instances that each can support u-Ring, u-Chain or Sub-Ring type for flexible uses.
  • u-Ring for Redundant Cabling, recovery time<10ms in 250 devices
  • DHCP client/Relay/Snooping/Snooping option 82/Relay option 82
  • QoS, Traffic classification QoS, CoS, bandwidth control for Ingress and Egress, Storm Control, DiffServ
  • IEEE802.1q VLAN, MAC based VLAN, IP subnet based VLAN, Protocol based VLAN, VLAN translation, GVRP, MVR
  • Dynamic IEEE 802.3ad LACP Link Aggregation, Static Link Aggregation
  • IGMP snooping V1/V2/V3, IGMP Filtering/ Throttling, IGMP query, IGMP proxy reporting, MLD snooping V1/V2
  • Flexibility security: Port based and MAC based IEEE802.1X, RADIUS, ACL, TACACS+, HTTP/HTTPS, SSL/SSH v2
  • Software upgrade via TFTP and HTTP, redundant firmware to avoid upgrade failure
  • Support IEEE1588 PTP V2 for precise time synchronization to operate in Master, Boundary, Slave mode per port
  • RMON, MIB II, Port mirroring, Event syslog, DNS, NTP/SNTP, IEEE802.1ab LLDP
  • Supports IPv6 Telnet server /ICMP v6
  • CLI, Web based management, SNMP v1/v2c/v3, Telnet server for management
  • Provides SmartConfig for quick and easy mass configuration. Supports SmartView for centralized management
  • 4 x 10/100/1000Base-T(X) PSE Ports in RJ45 Auto MDI/MDIX 
  • 2x100/1000BaseX (RJ45/SFP)

- Redundant Input Power: Dual DC inputs. 24-48VDC on 6-pin terminal block
- Power Consumption (Typ.) 9 Watts
- Overload Current Protection Present

Operating Temperatures

-10 to 60°C --- IGS-402SM-4PH24

-40 to 75°C --- IGS-402SM-4PHE24

Operating Humidity 5% to 95% Non-condensing

Physical Characteristics
Dimensions (mm):106(W)x62,5(D)x135(H)
Enclosure: IP30

Warranty 5 years

DR-240 series, 240W DIN-Rail power supply
DR-120 series, 120W DIN-Rail power supply
Smart-View, Network Management Windows
SFP series 1Gbps SFP optical transceiver
SFP series 100Mbps SFP optical transceiver