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EN50155 8-port M12 Unmanaged Ethernet Switch
EN50155 8-port M12 Unmanaged PoE Ethernet Switch
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Model: NSM-208-M12 Model: NSM-208PSE-M12
  • Each port supports both 10/100 Mbps speed auto negotiation
  • 8 PoE ports with Power Sourcing Equipment (PSE) operation
  • Over-temperature, over-current and over/under-voltage detection (NSM-208PSE-M12)
  • 8-port 10/100 Mbps M12 type connector with IP40 protection
  • EN50155/50121-3-2/50121-4, and NEMA TS2 compliant
  • Automatic MDI/MDI-X crossover for plug-and-play
  • Store-and-forward architecture
  • Full duplex IEEE 802.3x and half duplex backpressure flow control
  • Auto-detection of PD (powered devices) and automatic power management (NSM-208PSE-M12)
  • Supports operating temperatures from -40 °C ~ +75 °C
The NSM-208PSE-M12/NSM-208-M12 is designed for industrial applications in harsh environments. The M12 connectors ensure tight, robust connections, and guarantee reliable operation, even for applications that are subject to high vibration and shock.

The NSM-208PSE-M12 PoE switch provide 8 fast Ethernet M12 ports with 8 IEEE 802.3af compliant PoE ports. The switch is classifi ed as power source equipment (PSE) and provide up to 15.4 W of power per port. The Ethernet switch support IEEE 802.3/802.3u/802/3x with 10/100M, full/half-duplex, MDI/MDI-X auto-sensing, and provide an economical solution for your industrial Ethernet network.

The NSM-208-M12 provides a wide 12 to 53 VDC power range to fit all the common power standards found in industrial automation, without external power converters. The wide power input lowers installation and maintenance costs.
Models NSM-208PSE-M12 NSM-208-M12
Standards IEEE 802.3, 802.3u, 802.3x, 10/100 Base-T(X) auto negotiation speed, F/H duplex mode, and auto MDI/MDI-X connection
Processing Type Store & forward
MAC Addresses 1024
Memory Bandwidth 3.2 Gbps
Frame Buffer Memory 512 Kbit
Flow Control IEEE 802.3x flow control, back pressure flow control
LED Indicators PWR, Link/Act, Power Device is detected PWR, Link/Act
Ethernet Isolation 1500 Vrms 1 minute
Connection Female 4-Pin shielded M12 D-coding connector X 8
Power Input
Input Voltage Range +46 VDC ~ +53 VDC +12 VDC ~ +53 VDC
Power Consumption 0.12 A @ 48 VDC without PD loading
3.0 A @ 48 VDC with PD full loading
0.12 A @ 48 VDC
Protection Power reverse polarity protection
Connection Male 5-Pin shielded M12 A-coding connector X 1
PoE Technology
PoE Compliance 100% IEEE 802.3af compliant
Power Consumption PSE (Power Sourcing Equipment)
PoE Voltage +46 ~ +48 VDC depending on power input
PoE Power Up to 15.4 W per port
PoE Operation Automatic detection and power management
PoE Pin Assignments V+ (Pin 1, 2), V- (Pin 3, 6)
PoE Disconnect Mode DC disconnect
Casing Metal with IP40
Dimensions (W x L x H) 190 mm x 56 mm x 100 mm
Installation Wall Mounting
Operating Temperature -40 °C ~ + 75 °C
Storage Temperature -40 °C ~ + 85 °C
Ambient Relative Humidity 10 ~ 95% RH, non-condensing
NSM-208-M12 CR EN50155 8-port M12 Unmanaged Ethernet Switch (RoHS)
Includes M12D-4P-IP68 x 8, A-CAP-M12M x 8, M12A-5P-IP68 and A-CAP-M12F x 1
NSM-208PSE-M12 CR EN50155 8-port M12 Unmanaged PoE Ethernet Switch (RoHS)
Includes M12D-4P-IP68 x 8, A-CAP-M12M x 8, M12A-5P-IP68 and A-CAP-M12F x 1
MDR-60-48 48 V/1.25 A, 60 W Power Supply with DIN-Rail Mounting
DIN-KA52F-48 48 V/0.52 A, 25 W Power Supply with DIN-Rail Mounting
DR-120-48 48 V/2.5 A, 120 W Single Output Industrial DIN Rail Power Supply
KA52F-48 48 V/0.52 A, 25 W Power Supply

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