4 2.5G NBaseTX (PoE), + 2 10GBaseX SFP Ethernet switch


  • 2.5G/10G Ethernet switch, that support management and power over Ethernet functions, come with 4 ports IEEE802.3at standard for 30Watts power injection per port
  • Provides 2 port 1G/2.5G/10G SFP slots for providing stable and reliable long-distance Ethernet transmission
  • Lite-Industrial grade of FANLESS design for high MTBF, use in indoor environment of operating temperature from -10 to 60C degree, redundant 48VDC power input
  • Supports a wide variety of Ethernet functions, including STP/RSTP, advanced PoE management functions such as weekly PoE power scheduling as well as device auto-checking and auto-reset
  • 4x 10/100/1G/2.5GBase-T RJ-45+ 2x 1G/2.5G/10GBase-X SFP with 4x PoE, total 120W power budget
  • STP, RSTP, MSTP for redundant cabling
  • DHCP Server/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
  • RMON, MIB II, Port mirroring, Event syslog, DNS, NTP, SNTP, IEEE802.1ab LLDP
  • Supports IPv6 Telnet server /ICMP v6CLI, Web based management, SNMP v1/v2c/v3, Telnet server for management


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 802.3bz 2.5GBase-T
IEEE 802.3z 1000Base-X Gbit/s Ethernet over Fibre-Optic
IEEE802.3ae 10G bit/s Ethernet over Fiber
IEEE 802.1d STP (Spanning Tree Protocol)
IEEE 802.1w RSTP (Rapid Spanning Tree Protocol )
IEEE 802.1s MSTP (Multiple Spanning Tree Protocol)
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 linkswith 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 802.3af PoE (Power over Ethernet)
IEEE 802.3at PoE+ (Power over)

Switch Architecture

Back-plane (Switching Fabric): 60Gbps; Full wire-speed

Flow Control

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

Network Connector

4x 10/100/1G/2.5GBase-T RJ-45 + 2x
1G/2.5G/10GBase-X SFP RJ-45 UTP port support Auto negotiation speed,
Auto MDI/MDI-X function, SFP port support 1G/2.5G/10G speed with DDMI

PoE standard & RJ-45 pin assignment

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


RS-232 (RJ-45)

Network Cable

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

Power Supply

Redundant dual power input 48VDC (44~57VDC)
(Removable terminal block)
(50~57VDC input is recommended for IEEE 802.3at PoE+ in 30W applications)

PoE Power Budget

Maximum PoE Output power budget 30W / Per Port Total 120W

Jumbo Frame

9.6K Byte


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

MAC Address Table



Operating Temperature -10 ~ 60°C
Operating Humidity 5% to 95% (Non-condensing)
Storage Temperature -40 ~ 85°C


Rugged Metal, IP30 Protection, Fanless

Installation Mounting

DIN Rail mounting, or wall mounting (Optional)


1 year


EMC CE (EN55024, EN55032)
EMI (Electromagnetic Interference) FCC Part 15 Subpart B Class A,CE
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6

Ordering Information

Order Code Description
CT-QS-402XSM-4PH 4x 2.5G N-Base-TX + 2x 10GBase-X SFP Ethernet Switch with 4x PoE (120W)

More Information