Develop a wide range of wireless and wired products
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Managed PoE Switch



  • Provides 6 10/100/1000Base TX PoE ports, plus 2 100FX/1000Base-F SFP slots
  • IEEE 802.3af 15.4W/IEEE 802.3at 30W & 60W (optional) high power PoE
  • Total PoE power budget: Max. 240W PSE power delivered
  • 9K Jumbo frames
  • L2 wire-speed switching engine
  • 8K MAC forwarding addresses
  • Network redundant LACP, spanning tree STP, RSTP & MSTP, and quick ring fail-over protection (< 20 ms)
  • Port-based/tag-based VLAN, IEEE 802.1ad/QinQ VLAN, add/remove VLAN tags
  • Multicasting supports IGMP v1/v2, proxy & snooping
  • Multicast/Broadcast/Flooding storm control
  • IEEE802.1x access control
  • Per VLAN mirroring
  • CLI/Web/SNMP management interfaces
  • PoE PSE power management & PD power consumption monitoring
  • Dual power input & reverse power protection
  • DIN-rail and wall mounting option
  • Supports Gigabit



MLB-E4212-8-G-P-F managed 10/100M Gigabit Ethernet switches, providing 6 10/100/1000Base-T PoE PSE ports, and 2 100/1000Base SFP ports. It complies with IEEE 802.3at standard and is able to deliver up to 30 watts power per port along with data on standard Ethernet cabling. The switch can be used to power any IEEE 802.3af/at compliant PoE PD devices with PoE power management feature, which eases the deployment effort of planning PoE power budget and eliminates the need for additional wiring to reach power source.


Operating Mode

Store and forward,

L2 wire-speed/non-blocking switching engine

MAC Addresses 8K
Jumbo Frames

9K Bytes

Copper RJ45 Ports  

10/100/1000 Mbps

MDI/MDIX Auto-crossover Supports straight or cross wired cables
Auto-negotiating 10/100/1000 Mbps speed auto-negotiation; full and half duplex
Ethernet Isolation 1500 VRMS 1 minute
SFP (Pluggable) Ports  
Port Types Supported

SFP (pluggable) ports 

100/1000BaseSFP slot

Supports 100FX SFP transceiver

Supports 100/1000BaseT SFP transceiver

Fiber Port Connector

LC typically for fiber (depends on module) 

Optimal Fiber Cable

Typical 50 or 62.5/125 μm for multimode (mm)

Typical 8 or 9/125 μm for single mode (sm)

Network Redundancy  
Flash Ring

Link loss recovery < 20 ms.

Single & multiple rings supported

Scale Chain Link loss recovery < 20 ms.
Spanning Tree Protocol

IEEE 802.1D STP, IEEE 802.1w RSTP, IEEE 802.1s MSTP

Port Trunk with LACP Static trunk or dynamic via LACP (Link Aggregation Control Protocol)
Bridge, VLANs & Protocols  
Flow Control IEEE 802.3x (full duplex) and back-pressure (half duplex)
Max. VLANs 1024
VLAN Types

Port-based VLANs; MAC-based VLANS

IP Subnet-based VLANS

Protocol-based VLANS

IEEE 802.1Q tag-based VLANs

RADIUS-assigned VLAN

IEEE 802.1ad double tagging (Q in Q)

Multicast Protocols

IGMP v1, v2 with up to 255 multicast groups

IGMP snooping and querying

Immediate leave and leave proxy

Throttling and filtering

LLDP IEEE 802.1ab Link Layer Discovery Protocol (LLDP)
Traffic Management & QoS  

IEEE 802.1p QoS

Number of Queues Per Port


Scheduling Schemes SPQ, WRR
Traffic Shaper

Port-based shaping

RADIUS QoS RADIUS-assigned QoS Class
Alarm relay output relay output with current carrying capacity of 0.5A @ 24VDC
Alarm Notificaiton Configurable alarm profile to enable Alarm LED, Alarm relay & SNMP traps
Port Security

IP and MAC-based access control

IEEE 802.1X authentication network access control

Authentication via local database, RADIUS or TACAS+ AAA 

(Authentication, Accounting and Authorization)


Storm Control Multicast/Broadcast/Flooding Storm Control
User Management Interfaces

Cisco-like CLI (Command Line Interface)

WEB-based management

SNMP v1, v2c, v3

Telnet (5 sessions)

Management Security


Radius client for management 

Upgrade & Restore

TFTP/FTP for configuration import/export

TFTP/FTP for firmware upgrade



Per VLAN mirroring

Ethernet copper connection diagnostic tool

SFP with DDM (Digital Diagnostic Monitoring)


RFC 1757 RMON 1, 2, 3, 9

RFC 2674 Q-Bridge MIB


RFC-1493 Bridge MIB, 


DHCP Client, Server, Relay, Snooping, Option 82
System Status Device info/status, ethernet port status, PoE status
PoE Management

Scheduling, power control,

PoE PD power consumption

Power Input Redundant input terminals

Input Voltage Range

Max. PoE Output Power Budget Per Port

44~58VDC (50~58VDC for better PoE performance)

300W (Max. 600W for port 1 & por 2)

PoE PSE Port Output Power Management Scheduling; power control; PoE PD power consumption
Reverse Power Protection Yes

Transient Protection

Power Consumption

> 15,000 watts peak

Max. 14W without PD connected

Max. 265W with 240W PSE power delivered

Power Status Indication Indication of power input status

Ethernet Port Indication

PoE Status

Link & Speed

Indication of PoE power applying

Systen Alarm Profile-defined System Alarm
Environmental & Compliances  
Operating Temperature Range -40~+75 °C (cold startup at -40 °C)
Storage Temperature Range -40~+85 °C
Humidity (Non-condensing) 5~95% RH (non-condensing)
Vibration, Shock & Freefall

Vibration: IEC60068-2-6

Shock: IEC60068-2-27

FreeFall: IEC60068-2-32

Certification Compliance CE/FCC
Electrical Safety

CSA C22, EN61010-1, CE


FCC Part 15, CISPR 22 (EN55022) Class A

IEC61000-4-2, -3, -4, -5, -6 (Level 3)

RoHS and WEEE RoHS (Pb free) and WEEE compliant
MTBF > 25 years
Ingress Protection IP30
Installation Option DIN-rail mounting, wall mounting
Dimension (L)x(W)x(H) 77x154x128mm
Weight  1410g


Model No. Description
MLB-E4212-8-G-P-F 8-Port PoE Managed (Gigabit) Switch