Hardened PoE+ Injector/Converter – SI-IES-121D-LRT

Unmanaged Hardened PoE+ Injector/Converter
(1) 100/1000Base-X SFP Slot + (2) 10/100/1000Base-T PoE+ Ports


Product Details


(1) 100/1000Base-X SFP port + (2) 10/100/1000Base-T PoE+ ports

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The SI-IES-121D-LRT is a (3) port unmanaged hardened PoE+ injector / converter that adds up to 30 Watts of power from its (2) PoE+ ports onto 2 network segments. The gigabit speed SFP slot provides the ultimate flexibility by allowing fiber SFP uplink ports with varying communication distances.


  • IEEE 802.3at PoE+ to supply 30 Watts per port
  • Supports IEEE 802.3af
  • Supports dual speed for SFP slot
  • Non-blocking architecture
  • Compact, space saving size
  • IP31 housing protection
  • Link Pass Through
  • Extended operating temperature (-40°C to 75°C)
  • DIN Rail mount / optional wall mount brackets included
  • Full/half-duplex flow control
  • Auto-MDI/MDIX
  • Auto-Negotiation
  • Store-and-forward transmission
  • 10K byte jumbo frames


Standards IEEE 802.3
IEEE 802.3u
IEEE 802.3x
IEEE 802.3ab
IEEE 802.3at
IEEE 802.3z
IEEE 802.3af
Max Jumbo Frames 10K byte jumbo frames
Connectors (1) DATA IN 100/1000Base-X SFP Ethernet Port
(2) DATA OUT 10/100/1000Base-T PoE+ RJ-45 Ethernet Port 30 Watts
Data Rate 10/100/1000 Mbps
Status LEDs Copper Port: Link/ACT
Copper Port: Gigabit Transmission
SFP Port: Link/ACT
PoE Power
Input Power
Dimensions Width: 1.44” [36.7 mm]
Depth: 3.72” [94.5 mm]
Height: 4.26” [108.4 mm]
Power Consumption 3.53 Watts (No PoE)
63.5 Watts (2 ports PoE)
Power Input 48-57VDC
Higher Voltage (50-53VDC) may be required for some high powered PD loads
Ingress Protection IP31
Environment Operating: -40°C to 75°C
Storage: -40°C to 85°C
Humidity: 10% to 95% (non-condensing)
Altitude: 0 – 10,000 ft.
Weight 1.3 lbs. [0.59 kg]
MTBF 717,339 Hours Bellcore Ground Benign, Controlled; Temp 30°C

613,639 Hours Bellcore Ground Fixed, Uncontrolled; Temp 30°C
Certifications Safety: UL508, Class 1, Division 2, Groups A, B,
C, and D Hazardous Locations, CE Mark,
FCC Class A, EN55011,
EN55022/EN61000-6-4 (EMC),
EN55024/EN61000-6-2 (Immunity),
EN61000-4-2 (ESD),
EN61000-4-3 (RS),
EN61000-4-4 (EFT),
EN61000-4-5 (Surge),
EN61000-4-8 (Magnetic Field),
IEC60068-2-32 (Free fall),
IEC60068-2-6 (Vibration)
Warranty Lifetime

Ordering Information

SKU Description  

(1) 100/1000Base-X SFP port + (2) 10/100/1000Base-T PoE+ ports

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