Power Supply Systems

Outdoor Integrated Power System (DYX-3000 / DYX-6000)

ZTT DYX-3000 and DYX-6000 are high-efficiency integrated power supplies designed for distributed micro base stations. Each unit integrates rectifying, monitoring & communication, power distribution and surge protection in a compact aluminium shell with heatsink — no additional cooling device is required. Wide 90 – 280 Vac input, expandable up to 4 units in parallel, IP65, multiple installation methods (wall / pole / ground). Used in combination with the 4850Y 48 V 50 Ah Li-ion battery with built-in BMS as backup. Compared to a traditional air-conditioned cabinet the integrated power supply reduces construction cost by about 45 % (≈ US$277 / station) and eliminates the air-conditioner load (≈ US$154 / station).

Outdoor Integrated Power System (DYX-3000 / DYX-6000) — ZTT power supply system

Features & Characteristics

  • Small-sized and light-weighted, high power density, natural self-cooling design.
  • Wide input range 90 – 280 Vac; easy pluggable wiring.
  • Expandable up to 4 units in parallel (current-sharing unbalance < 5 % at ≥ 50 % load).
  • Output disconnection by time or voltage setting.
  • IP65 protection with multiple installation methods (wall-mounted, pole-mounted, ground-standing).
  • Integrates rectifying, monitoring, power distribution and surge protection in one aluminium case.
  • Maintenance-free, high reliability, low carbon emission.

Applications

  • Small and medium-size communication base stations (macro and micro).
  • Indoor and outdoor walls, subways, tunnels, shafts and other sites with limited installation space.
  • Distributed micro base-station retrofits replacing traditional air-conditioned cabinets.

Technical specifications

Rated input voltage
220 Vac, single-phase three-wire
Input voltage range
90 – 280 Vac (90 – 176 Vac: output voltage derating)
Input frequency
45 – 65 Hz
Power factor
≥ 0.99 @ 220 Vac, 100 % load
THD
≤ 5 % @ 220 Vac, 100 % load
Rated output voltage
53.5 ± 0.5 Vdc (adjustable 43 – 58 Vdc)
Output efficiency
≥ 96 %
Parallel operation
Up to 4 units, current-sharing unbalance < 5 % @ ≥ 50 % load
Operating temperature
-40 °C to +55 °C
Storage temperature
-40 °C to +80 °C
Relative humidity
≤ 95 %, non-condensing (40 ± 2 °C)
Altitude
0 – 3000 m (≥ 3000 m output voltage derating)
Ingress protection
IP65
Heat dissipation
Natural, heatsink aluminium shell
Shock & vibration
Earthquake resistant up to intensity 9

Unit variants

ModelRated powerRated outputMax output currentInput current maxDimensions (W × D × H)Weight
DYX-30003000 W53.5 Vdc / 56.2 A62.5 ± 1 A20 A385 × 277 × 70 mm≤ 8 kg
DYX-60006000 W53.5 Vdc / 112.15 A125 ± 2 A38 A440 × 350 × 103 mm≤ 16 kg
4850Y (Li-ion backup)48 V / 50 Ah battery with built-in BMS425 × 185 × 310 mm≈ 28 kg

Comparison — traditional air-conditioning cabinet vs integrated power supply

AspectTraditional AC cabinetIntegrated power supply
FunctionAir conditioner, power supply and PDU installed separatelyRectifying, DC distribution, remote management and self-cooling in one aluminium case
Dimension900 × 900 × 2000 mm3 kW: 385 × 277 × 70 mm / 8 kg — 6 kW: 440 × 350 × 103 mm / 16 kg
InstallationCabinet, power supply and batteries installed one by one — high labour cost1 personnel in 1 hour — construction cost reduced by ≈ 45 % (≈ US$277 / station)
MaintenanceAC needed; fan-cooling power supplyNo AC, self-cooling power supply — electricity cost reduced ≈ US$154 / station
ApplicationGround installation onlyWall, pole, flat-roof or ground — indoor and outdoor

Protective features (DYX-3000 / DYX-6000)

FunctionDYX-3000DYX-6000
Input under-voltage protection / recovery80 ± 5 Vac / 100 ± 5 Vac80 ± 5 Vac / 100 ± 5 Vac
Input over-voltage protection / recovery290 ± 5 Vac / 270 ± 5 Vac290 ± 5 Vac / 270 ± 5 Vac
Output over-voltage protection≥ 58 Vdc≥ 59 Vdc
Output under-voltage protection≤ 42 Vdc≤ 42 Vdc
Output over-current protection62.5 ± 2 A126 ± 2 A
Over-temperature protection / recovery85 ± 5 °C / 75 ± 5 °C105 ± 5 °C / 85 ± 5 °C
Short-circuit protectionSustainable for long periodSustainable for long period

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