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

PART #  551937
Minimum 1 Each
In Stock


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 (-40C to 75C)
  • DINmount / optional wall mount brackets included
  • Full/half-duplex flow control
  • Auto-MDI/MDIX
  • Auto-Negotiation
  • Store-and-forward transmission
  • 10K byte jumbo frames

Specification Description

Item: Hardened Mid-Span PoE+Injector
Status LEDs: PWR1: On=Primary Power Connected; PWR2: On=Backup Power Connected; PoE+ Port Link/ACT; PoE+ Port Gigabit Transmission; SFP Port Link/ACT
Connectors: (1) DATA IN SFP Ethernet Port; (2) DATA OUT PoE+ RJ45 Ethernet Port 30 Watt
Ingress Protection: IP30
Installation: Din-Rail, Wall-Mount (Optional)
Input Power: 48 Volt DC
Power Consumption: 3.525 Watt (No PoE), 63.5 Watt (2 Port PoE)
Environmental Conditions: -40 to 75 deg C Operating Temperature; -40 85 deg C Storage Temperature; 5 - 95% Humidity Non-Condensing; 0 - 10000 ft Operating Altitude
Port One: (1) 100/1000BASE-X Dual Speed SFP DATA IN
Port Two: (2) 10/100/1000BASE-T PoE+ DATA OUT
Dimension: 1.440 Inch Width x 3.720 Inch Depth x 4.260 Inh Height

Tech Info

IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3at, IEEE 802.3z, Safety: UL508, Compliance FCC Class A, CE Mark, EN61000-6-4, EN61000-6-2, EN61000-4-2 (ESD), EN61000-4-3 (RS), EN61000- 4-4 (EFT), EN61000-4-5 (Surge), EN61000-4-6(CS) EN61000-4-8 (Magnetic Field), IEC60068-2-27 (Shock), IEC60068-2-32 (Free Fall), IEC60068-2-6 (Vibration)


Number of Ports 1-4 PORTS
UNSPSC Code 43222600

Spec Sheet

Spec Sheet

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