EN50155 Managed switch, 12/22 x 100BaseTX M12, 4x GbE


  • Managed, industrial grade, L2 Fast Ethernet switches that provide 12 or 22 x 10/100Base-TX and 4  Gigabit ports
  • M12 connectors ensure tight, robust connections and guarantee reliable connections against vibration and shock
  • Compliant with EN50155, covering power input voltage, surge, EFT, ESD, vibration and shock, making these switches suitable for industrial applications, such as vehicle, rolling stock, or vessel
  • STP, RSTP, MSTP, ITU-T G.8032 Ethernet Protection Ring (ERPS) for redundant cabling
  • Provides up to 5 instances that each supports μ-Ring, μ-Chain or Sub-Ring type for flexible uses
  • μ-Ring for Redundant Cabling, recovery time<10ms in 250 maximum devices
  • Supports TTDP for railway applications
  • Supports IEEE 1588 PTP V2 for precise time synchronization to operate in Ordinary-Boundary, Peer to Peer Transparent Clock, End to End Transparent Clock, Master, Slave mode by each port
  • Provides SmartConfig for quick and easy mass Configuration Tool
  • 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 802.1d 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 802.3ac 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
IEEE802.3ac Max frame size extended to 1522Bytes
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)


4094 IEEE802.1Q VLAN VID


113 x 260 x 132 (D x W x H) (ITP-1204GTM)
113 x 360 x 132 (D x W x H) (ITP-2204GTM


238,600 Hours (ITP-1204GTM)
227,899 Hours (ITP-2204GTM)


EMC CE (EN55024, EN55032)
EMI (Electromagnetic Interference) FCC Part 15 Subpart B Class A, CE
Railway Traffic EN50155, EN50121-4
Fire protection of railway vehicles EN 45545-2
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 EN60950-1
Hi pot protection DC 2.25KV for power to chassis ground, Ethernet port to chassis ground 4KV surge
protection Supported for UTP port
Shock IEC-61373
Freefall IEC 60068-2-32
Vibration IEC-61373


5 Years

Ordering Information

Order Code Description
CT-ITP-1204GTM-E 12x 10/100Base M12+ 4x GbE M12 Managed Switch
CT-ITP-1204GTM-E-BP 12x 10/100Base M12+ 4x GbE M12 Managed Switch Bypass Model
CT-ITP-2204GTM-E 22x 10/100Base M12+ 4x GbE M12 Managed Switch
CT-ITP-2204GTM-E-BP 22x 10/100Base M12+ 4x GbE M12 Managed Switch Bypass Model

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