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Unmanaged Network Switches

ET4111Pp-S-DR End-of-Life

Industrial Unmanaged 4-port 10/100Base-TX (PoE+) + 1-port 100Base-FX SFP Ethernet Switch

General -

  • Supports IEEE802.3at PoE+ (30W per port)
  • Supports external 100Base SFP
  • Supports Auto-Negotiation and Auto MDI/MDI-X
  • Supports Store-and-Forward Transmission
  • Supports DIN-Rail and Wall-mount installation
  • -10°C to 60°C (14°F to 140°F) operating temperature

Warranty -

  • 5-Year Warranty

Ordering Information -

Available Model Description
ET4111Pp-S-DR Industrial Unmanaged 4-port 10/100Base-TX (PoE+) + 1-port 100Base-FX SFP Ethernet Switch
Optional Accessories (to be purchased separately)
SFP (S)=SFP Option. Please select your SFP on our SFP Modules page at the back of the catalogue or our website www.ot-systems.comfor details.
Power Supply Please refer to the power supply information at the back of the catalogue, our website www.ot-systems.com, or consult OTS sales at sales@ot-systems.com for your power system design properly.
Package Checklist
- Unmanaged PoE Switch x 1
- Wall Mount Plates x 1
- Din Rail Clip x 1
- Quick Installation Guide x 1


Standards IEEE802.3 10Base-T
IEEE802.3u 100Base-TX/FX
IEEE802.3x Flow Control
IEEE802.3af Power over Ethernet
IEEE802.3at Power over Ethernet
Processing Type Store-and-Forward
Half-duplex back-pressure and IEEE802.3x Full-duplex flow control
Switch Fabric 1 Gbps
Forward Filter Rate 14,880pps (10Mbps)
148,800pps (100Mbps)
Packet Buffer Memory 512K bits
Cablinge 10Base-T: Cat5 or above
100Base-TX: Cat5 or above
Maximum Distance Cat5 UTP up to 100m
Connector 4 x RJ45
Address Table Size 1024 MAC Address
Electrical and Mechanical
Input Power 48-57VDC (Terminal Block)
Power Consumption 5W Max. 0.1A@48VDC (PoE not in use)
130W Max. 2.7A@48VDC (PoE in use)
LED Indicators
Power PWR (Power Status)
10/100TX (Per Port) LINK/Activity, PoE
SFP (Per Port) LINK/Activity
Standard IEEE802.3at
Port RJ45 Port1~Port4
Mode Alternative B Mode
Positive (VCC+): RJ45 Pin 4,5
Negative (VCC-): RJ45 Pin 7,8
Max. Power per port 30W per Port for PSE
Overload Present
Mounting Options Present
Dimensions (W x D x H) 29.5 × 104.6 × 136 mm
Weight 0.5Kg
Casing Aluminum Case
Mounting options Din Rail / Wall Mount
Operation Temperature -10˚C to 60˚C (14˚F to 140˚F)
Storage Temperatur -40˚C to 85˚C (-40˚F to 185˚F)
Relative Humidity 5% to 95% non-condensing
MTBF > 200,000 hrs
Regulatory Approvals
ISO9001, CE, FCC, RoHS
EN55022:2010+AC: 2011, Class A
EN 61000-3-2: 2006+A1: 2009+A2: 2009
EN 61000-3-3: 2013
IEC 61000-4-2: 2008 (ESD)
IEC 61000-4-3: 2010 (RS)
IEC 61000-4-4: 2012 (EFT)
IEC 61000-4-5: 2014 (Surge)
IEC 61000-4-6: 2013 (CS)
IEC 61000-4-8: 2009 (PFMF)


  • ET4111Pp-S-DR Datasheet
  • 08 Apr 2016
  • ET4111Pp-S-DR User Manual
  • 08 Apr 2016
  • Unmanaged Ethernet Switches Products Datasheet Pack
  • 08 Apr 2016
  • 2016 Industrial Ethernet & Networking Products Catalog
  • 08 Apr 2016
  • 2016 Product Selection Guide
  • 08 Apr 2016