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PoE Network Switches


Hardened Grade Lite-Managed 4-port 10/100/1000Base-TX (PoE++) + 2-port 1000Base-SFP Ethernet Switch

Main Features -

IEEE 802.3bt PoE++ Solutions

  • The product adopts IEEE 802.3bt PoE++ standard technology, provides up to 95 watts per port output as an ideal solution for higher power consumption network PDs, such as POS system, digital signage.

Built-in Unique PoE Management Functions

PoE Usage Monitoring

  • Info such as power, current and temperature are available on web management interface.
  • Enhances the management efficiently of facilities.

PoE+ Power and Ethernet Data Transmission Distance Extension

  • Breaking the 100-meter limit, the PoE extending function can further extend Data and PoE up to 250 meters on UTP cable at 10Mbps for up to 4 PDs with power output.

Fault Alarm (via electric relay)

  • The built-in fault alarm function sends out alert via the electric relay when there’s fault on the network switch.
  • It helps measure performance and quickly find out anomalies of the network switch.

Dip Switch: RSTP, VLAN, SFP speed

  • Conveniently toggle physical DIP switch for quick access to functions of RSTP, VLAN and SFP speed.

Dual Power Input for High Reliability

  • Automatically switch to secondary power input when primary power input fails, ensuring continuous operation without down time.
  • Redundant power supply reduces possibility of single-point-of-failure.

Environmentally Hardened Design

  • With a compact metal housing with an IP40 rating
  • Environmentally hardened for direct deployment in difficult unconditioned out-of-plant and roadside installations.
  • Extended ambient operating temperature range: -40 ̊ C to +75 ̊ C


Other Features -

  • 4 10/100/1000Base-TX + 2 1000Base-SFP
  • Supports IEEE802.3az energy-saving technology
  • Provide 9K Bytes Jumbo Frame that is compatible with multiple extension protocols
  • Supports 802.3x Flow control
  • 10/100/1000Mbps RJ45 Port
  • Supports external 1000Base-SFP
  • An easy-to-use WebGUI interface
  • Complete with electricity surge protection, easy to use in an outdoor environment

Ordering Information -

Available Model Description
ET4222Pp9H-S-DR Hardened Grade Lite-Managed 4-port 10/100/1000Base-TX (PoE++) + 2-port 1000Base-SFP Ethernet Switch
Optional Accessories (to be purchased separately)
SFP (S)=SFP Option. Please select your SFP on our SFP Modules page for details.
Power supply Recommended power supply: NDR-240-48, NDR-480-48. Please refer to the Power Adaptors and Power Supply page for more information.
Package Checklist
- Lite-managed PoE Switch x 1
- Caps, plastic, for SFP or SC or ST fiber port Slots x 2
- Wall-Mount Kits x 2
- DIN-Rail Clip x 1
- Quick Installation Guide x 1


Standards IEEE802.3 for 10BaseT
IEEE802.3u for 100BaseTX and 100BaseFX
IEEE802.3ab for 1000BaseTX
IEEE802.3z for 1000BaseSX/LX/LHX/ZX
IEEE802.3x for flow control
IEEE802.1D-2004 for Spanning Tree Protocol
IEEE802.1w for Rapid Spanning Tree Protocol
IEEE802.1p for Class of Service
IEEE802.1Q for VLAN Tagging
Processing Type Store-and-Forward
Forward Filter Rate 14,880pps (10Mbps)
148,800pps (100Mbps)
1,488,000pps (1000Mbps)
Cabling 10Base-TX: Cat5 or above
100Base-TX: Cat5 or above
1000Base-TX: Cat5 or above
Packet Buffer Memory 1 Mbits
Max Packet Length 9216 Bytes
Address Table Size 4K
Switch Fabric 12Gbps
RJ45 port 10/100/1000Mbps-Full/Half-duplex, Auto-negotiation, Auto MDI/MDI-X
PoE port IEEE 802.3af/at/bt, PoE (90W) , 1/2(+), 3/6(-), 4/5(+), 7/8(-)
SFP port 1000Base-SFP (Suggest OTS SFP)
LED Indicators Power; Link; PoE
Dip Switch #1 RSTP Enable/Disable (Default: Enable);
#2 VLAN Enable/Disable (Default: Disabled);
#3 SFP port fixed speed, ON as 100M (Default: 100/1000M Adaptive);
SFP port 1000Mbps
Software Features
Redundancy Protocol Support STP/RSTP
Multicast Support Support IGMP Snooping V1
VLAN Support IEEE 802.1Q 4K VLAN, Port Isolation, Trunk Group Setting
QOS Support Priority Selection, DSCP Remapping, Priority To Queue, Port Priority, Queue Weight
Diagnostic Maintenance Support port mirroring, Port Statistics, Cable Diagnostic
Management Function WEB, SNMPv1, EEE, Green Ethernet
Security Broadcast/Multicast Stom Protection, MAC filtering, MAC Constraint
PoE Management (PoE Model) PoE Mode, State and Power Monitoring
Advance Functions Bandwidth Control (Ingress and Egress Rate), Jumbo Frame, Firmware Online Upgrade, Configuration Backup
Electrical and Mechanical
Input Power DC9-56V (Terminal block, Redundant power)
input voltage for 95W PoE: DC52-56V (suggest 56V)
Power Consumption 243W @52-56VDC (PoE in use)
3W, Max. @48VDC (PoE not in use)
Connector 1 removable 6-contact terminal blocks
Pin 1/2 for Power 1, Pin 3/4 for Power 2, Pin 5/6 for fault alarm
Dimensions 120 x 90 x 35 mm
Weight 350 g
Casing Aluminum Case
Mounting DIN-Rail and Wall Mount
Operation Temperature -40˚C to 75˚C (-40˚F to 167˚F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Relative Humidity 5% to 90% non-condensing
MTBF > 100,000 hrs
Regulatory Approvals
FCC Part 15 Subpart B
EN 55032:2015
EN 55035:2017
IEC 62321-7-2:2017
IEC 62321-4:2013+A1:2017
IEC 62321-5:2013
IEC 62321-6:2015
IEC 62321-8:2017

  • ET4222Pp9H-S-DR Datasheet
  • 17 May 2024
  • ET4222Pp9H-S-DR QIG
  • 25 Nov 2022