IEEE 802.3 PoE injector DP101-TX90

DIN railIP40FCC

The DP101-TX90 is an industrial-grade 90W Power-over-Ethernet (PoE) injector engineered for robust power delivery and reliable data connectivity in harsh environments, supporting IEEE 802.3af/at/bt standards with intelligent PD detection and 4-pair power feeding.

Key features

• IEEE 802.3af/at/bt PoE injector supporting Alternative-A and Alternative-B 4-pair power feeding, delivering up to 90 W at the PoE/PSE port.
• Supports 10/100/1000 Mbps Ethernet with Auto-MDI/MDI-X and automatic link speed negotiation to the PD and uplink device.
• Smart PoE detection algorithm: auto-detects PD type (standard vs non-standard) and applies limited power to non-standard PDs to ensure safe operation.
• Manual power control mode available for safely powering legacy or non-standard PDs; PoE power budget configurable via DIP switches (Class 0–8) or Auto Mode.
• Multiple protection mechanisms: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Over-Temperature Protection (OTP) with system alarm indication and automatic shutdown/recovery behavior.
• Hardened design for industrial use: operation from -40°C to 75°C, IP40-rated metal (steel) enclosure, IEC 61000-6-2 / IEC 61000-6-4 heavy industrial EMC compliance.
• Compact, palm-sized form factor with DIN-rail mounting kit for tidy installation in control cabinets and space-constrained locations.

Special vertical market applications

• Factory Automation – real-time machine communication
• Railway track side – PLC communication
• Telecom unattended station – Ethernet / fiber conversion

Technical specifications

• Model name: DP101-TX90
• Brand: WoMaster
• Standards: IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX, IEEE 802.3ab 1000Base-T, IEEE 802.3af/at/bt PoE (PSE-Injector)
• Ethernet ports: Data In: RJ-45 support 100/1000 Mbps; PoE/PSE Output: RJ-45 support 100/1000 Mbps
• PoE power forwarding mode: IEEE 802.3af/at Alternative-A (2-pair); IEEE 802.3bt Alternative-A + Alternative-B (4-pair)
• PoE operation modes: Auto Mode (full PoE sequence: Detection, Classification, Powering, Disconnection) and Manual Mode (direct power delivery bypassing PoE sequence); DIP-switch configurable for Auto/Manual and manual class selection
• PoE power budget: IEEE 802.3af: 15 W (typical @48 V, rating 46–57 V); IEEE 802.3at: 30 W (typical @52 V, rating 50–57 V); IEEE 802.3bt: 90 W (typical @55 V, rating 53–57 V)
• Input voltage & power: Nominal 54 VDC; ranges indicated per standard (46–57 VDC / 50–57 VDC / 53–57 VDC); 3-pin removable terminal connector with power redundancy (V1+, V2+, V- COM) and polarity reverse protection
• Input current: 0.04 A @54 V (full traffic without PD loading)
• Power consumption (max): 106 W @54 VDC with full traffic and PD loading (suggest reserve 15% tolerance)
• PoE protections: OVP / OCP / OTP; PSE power output disabled on fault and resumed only after fault cleared; OTP thresholds — shutdown when internal temp exceeds 150°C, recovery when below 129°C
• System LEDs: Power (green on); PoE (green on when PoE active); Ra Alarm (red on for OCP/OVP/OTP events, red blinking when PSE chip temp exceeds 129°C)
• DIP switches: DIP1 = Alarm Indicate; DIP2 = PoE Enable; DIP3–6 = PoE Auto/Manual class selection (0000 = Auto Classification; manual classes 0001–1000 correspond to Class 1–8 with class power values and 1111 = Auto)
• Mechanical: Installation — DIN Rail; Enclosure material — Steel metal; Dimensions — 30 (W) x 103 (H) x 82 (D) mm (without DIN Rail clip); Ingress protection — IP40; Weight — 315 g (without package)
• Packing: 54 pcs / Carton (50×39×52 cm, total weight 29 kg)
• Environmental: Operating temperature & humidity — -40°C ~ 75°C, 0%~95% non-condensing (I-Grade); Storage temperature — -40°C ~ 80°C
• Reliability & safety: MTBF > 200,000 hours; Hi-Pot: AC 1.0 KV for Power/Ethernet port to chassis ground
• Warranty: 5 years