
ZTE CSU401S Centralized Supervisory Unit
Carrier-grade supervisory controller for ZXDU DC power plants, featuring CAN-bus rectifier orchestration, dual LVD control, and SNMP northbound telemetry.

The ZTE ZXDU58 B900 is an enterprise-grade -48V floor-standing indoor telecom DC power system engineered to deliver up to 900A of high-reliability output power with hot-pluggable high-efficiency rectifiers and intelligent dual-stage Low Voltage Disconnect (LLVD/BLVD) battery management.
Pricing is confirmed by project configuration and quantity
Request a quoteThe ZXDU58 B900 is an integrated DC power plant comprising three-phase AC distribution, parallel rectifier module slots, a central supervisory unit (CSU), and multi-circuit DC breakers. It operates as the primary source of stable -48VDC power for carrier-grade network equipment while providing comprehensive battery charge/discharge control.
Eliminates power continuity loss caused by severe AC grid fluctuations, resolves online expansion risks via robust live hot-plug rectifiers, and prevents irreversible battery bank deep-discharge damage through programmable tiered load shedding.
Carrier core central offices, large mobile transmission aggregation hubs, metro edge data facilities, and railway signaling telecom rooms.
| Key specifications | Value |
|---|---|
| AC Input Voltage Range | 80VAC ~ 300VAC (3-Phase 5-Wire 380VAC) VAC |
| Smart Monitoring Controller | CSU500B / CSU401S Central Monitoring System |
| Cooling Method | Top exhaust fans and module smart thermal cooling |
| Nominal Output Voltage | -48VDC VDC |
| Rated Output Current | 900A (Cabinet Capacity 52.2kW) |
| Managed Rectifier Capacity | Supports up to 18 × ZXD2400 / ZXD3000 Rectifiers |
| Form Factor Dimensions (HxWxD) | 2000 × 600 × 600 mm (2.0m Floor Cabinet) |
| Peak Conversion Efficiency | ≥96.2% |
| Operating Temperature Range | -15°C ~ +55°C |
ZTE

Carrier-grade supervisory controller for ZXDU DC power plants, featuring CAN-bus rectifier orchestration, dual LVD control, and SNMP northbound telemetry.

ZTE high-efficiency -48V embedded telecom rectifier unit with wide input voltage range and active load sharing.

Carrier-grade 50A switch-mode power rectifier featuring full DSP digital control, >96% peak efficiency, and ultra-wide AC input capability.

Featuring conversion efficiency exceeding 96%, the subrack incorporates active power factor correction (PFC) and intelligent variable-speed forced-air cooling. It integrates a centralized digital supervision unit with active busbar current sharing, meeting stringent telecom-grade seismic resilience and EMC standards for continuous high-availability service across harsh thermal environments.