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Switch UMD-S326A2P450

Switch UMD-S326A2P450


PoE Switches are Gigabit , managed , 24-port Gigabit high power (IEEE 802.3at) PoE Switches,

utilizing a compact factor which can be mounted in a 19-inch rack with rack-mounting kits or placed on desktop.

With data and power supported by one unit, the Switches shall reduce cables and eliminate the need for dedicated electrical outlets on the wall,

ceiling or any unreachable place. Auto PoE detection and Plug and play installation makes Gigabit PoE Switch easy to use and

with clear LED indicators to tell the working condition.


■UMD-S326A2P450:Max Output Power: 450W, supports at most 24* 802.3af-compliant powered devices(power/port: 15.4W) or 14*802.3at-compliant powered devices(power/port:30W);

■Compatible with both IEEE802.3at(30W) and IEEE802.3af(15.4W), can supply power to PDs under these two standards;

■Transmitting electronic power together with data through a single network cable, free of power lines;

■Automatically detect and supply power to IEEE802.3at and IEEE 802.3af compliant powered devices(PDs);

■Advanced SAFC function, only supply power to IEEE 802.3af/at compliant PDs, no worry about damaging other private standard PoE devices or devices without PoE function;

■Support port power supply prioritization, guarantee the continuous power supply of key nodes;

■Up to 100m network cable transmitting distance, support flexible network expansion without power line deployment concerns. Users can freely fix their wireless APs, IP cameras or other end devices on the wall or ceiling;

■Built-in PSE power supply module, plug-and play design, easy to install;

■High security performance defending against power surge;

■Support short-circuit protection function, the switch will automatically start short-circuit function and cut off the power supply when there is high-current or other power failures, which can efficiently defend against device damage or network failures caused by line fault or wrong installation;

■Energy-saving green design, support auto-switch to standby mode and auto-detect cable length. It will stay in standby mode and save the power when the port is disconnected , or provide a lower transmission power when the network cable is less than 10m;

■Support simple WEB management, easy to configure the functions of switches.

Product Specifications

Fixed Ports

24*10/100/1000M PoE ports

2*Gigabit SFP ports

PoE standards


Max Output Power(single port)


Total Power Consumption


PoE Pin-out

1/2(+),3/6(-);Customized 4/5(+),7/8(-)

Switching Capacity


Forwarding Mode

Full wire-speed storage and forwarding

Forwarding Rate




Operation Temperature


Storage Temperature


Operation Humidity


Storage Humidity




Input Power Supply

AC:90-264V ~ 50-60Hz/450W



LED Indicator

Power,Link/Act,PoE Status

Energy Saving

Comply with “EEE” Energy Efficient Ethernet

Service Characteristics

Standards and Protocols

IEEE 802.3af,Power Over Ethernet

IEEE 802.3at,Power Over Ethernet Plus

IEEE 802.3u,100BASE-TX

IEEE 802.3ab,1000 BASE-T

IEEE 802.3z,1000 BASE-X

IEEE 802.3ad,Static or Dynamic Link Aggregation

IEEE 802.3x,Full-Duplex Flow Control

IEEE 802.3az,EEE(Energy Efficient Ethernet)

IEEE 802.1q,VLAN

IEEE 802.1p,QoS/CoS

IEEE 802.1d,STP(Spanning Tree Protocol)

IEEE 802.1w,RSTP(Rapid Spanning Tree Protocol)

MAC Address Table

Up to 16K MAC addresses

Support auto-update, two-way learning


Support up to 4096 VLANs

Port-based VLANs

VLANs based on IEEE 802.1q

Spanning Tree

Support Spanning Tree Protocol

Support Rapid Spanning Tree Protocol(RSTP)

Link Aggregation

Support 8 aggregation groups,

and a maximum of 4 ports in each aggregation group

Port Mirroring

Support bi-direction port mirroring

Ring Protection

Support Ring Protection, provide real-time detecting, quick alarm,

precise localization, smart blocking and auto-recovery

Port Isolation

Isolation between downlink ports without influence the communication

between downlink and uplink ports

Port Flow Control

Back-pressure traffic control under Half-Duplex mode

IEEE 802.3x traffic control under Full-Duplex mode

Port Rate Restriction

Port-based ingress or egress rate limiting

Jumbo Frame

Maximum supports 9216Byte

Multicast Control

Support IGMP Snooping

Storm Suppression

Support the suppression of broadcast storm based on forwarding rate


Port-base MAC address binding

Security restriction on port-based MAC address quantity


SP(Strict Priority)

WFQ (Weighted Fair Queuing)

WRR (Weighted Round Robin)

802.1p(Port Queuing Priority)

Differentiated Service Code Point(DSCP Priority)

PoE ouput priority Management


Physic Medium

10/100Base-TX:UTP category 3/4/5 cables( Maximum 100m)

1000Base-T:UTP Category 5 cable( Maximum 100m)

1000Base-SX:fiber with 850nm wavelength,supports a max

transmission distance of 550m

1000Base-LX:fiber with 1310nm / 1550nm wavelength,

supports a max transmission distance of 80km

Network Cable Deployment

Support Auto-MDIX function, automatically identify straight forward cable

and cross-over cable

Negotiation Pattern

Support port auto-negotiation function

( automatically negotiate transmission rate and Duplex modes)

PHY Detection

Detect the connectivity of network cables


Uploading or downloading of the configuration data

Uploading of upgrade patch

WEB-based reset to factory defaults

Support port short-circuit reset to factory defaults


Support WEB-based management