lee@ricewind.comTel+86 17621197907Serving 50+ countries
RICEWIND

ZTE / DC power systems

ZTE ZXDT02-PU V2.5 Power Unit Equipment information & support

The ZTE ZXDT02-PU V2.5 is a high-reliability -48V DC Power Distribution Unit (PDU) engineered for wireless macro base stations, ZTE B8200 BBUs, and remote RRUs, integrating multi-channel DC branch protection, carrier-grade surge suppression, and dry-contact alarm telemetry in a 19-inch rack-mount chassis.

Equipment information

Brand
ZTE
Equipment model
ZTE ZXDT02-PU V2.5 Power Unit
Equipment type
DC power systems
Controller / software version
Confirm against the installed equipment
View full product specifications
ZTE ZXDT02-PU V2.5 Telecom Grade -48V DC Power Distribution Unit 19-inch Rack PDU

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

Power Unit Type
Integrated AC/DC power distribution unit for base station BBU / RRU
Physical Form Factor
Standard 19-inch 1U/2U rack-mount drawer-type structure
DC Input Voltage
-48V DC nominal DC distribution input
Rated System Capacity
Supports 100A to 200A distributed power aggregation and management
DC Load Branch Outputs
Multi-channel granular circuit breaker / fuse DC outputs (covering BBU, transmission, and antenna-feeder)
Surge Protection
Built-in telecom-grade DC lightning surge suppression and alarm indication

Alarms & troubleshooting

AC_IN_FAIL (AC Input Abnormal)
RUN LED (Green) OFF, ALM LED (Yellow) solid ON
Mains utility outage, AC input voltage outside operational range (<85VAC or >300VAC), or input MCB tripped
1. Measure AC voltage at rectifier input terminals using a digital multimeter to verify line voltage. 2. Inspect the AC distribution breaker (MCB) and SPD circuit for trips. 3. Reseat the module firmly; if AC input is verified good but fault persists, replace the power unit.
OUT_OVP (DC Output Overvoltage Lockout)
FAULT LED (Red) solid ON, RUN LED (Green) OFF
Internal PWM regulation loop breakdown, feedback failure, or external DC bus voltage backfeed triggering hardware latch-off (>59.5VDC)
1. Disconnect/pull out the rectifier unit and wait 30 seconds for internal capacitors to discharge. 2. Measure system DC bus voltage to ensure it is in the normal range (42V–58V). 3. Re-insert the module to reset hardware latch; if it immediately trips to red LED again, replace the module.
TEMP_SHUTDOWN (Overtemperature Shutdown)
ALM LED (Yellow) solid ON, RUN LED (Green) blinking or OFF
Ambient temperature exceeding operational rating (>55°C), air intake/exhaust dust filters blocked, thermal recirculation, or faulty heatsink NTC sensor
1. Verify cabinet and room cooling systems; reduce ambient intake temperature to 25°C–30°C. 2. Clean front and rear dust filters and ensure unobstructed airflow paths. 3. Allow internal heatsinks to cool below auto-recovery threshold; if alarm persists under cool conditions, replace the unit.
FAN_FAIL (Fan Speed Control/Blocked Fault)
ALM LED (Yellow) blinking (0.5Hz), RUN LED (Green) solid ON or derating
Cooling fan blades mechanically blocked by foreign debris, fan tachometer Hall sensor disconnected, bearing seizure, or fan driver circuit defect
1. Inspect front and rear vents; blow out accumulated dust with dry compressed air and remove foreign objects. 2. Gently spin the fan blades to ensure smooth mechanical movement. 3. Check fan internal wire harness connection; if the fan does not spin or alarm persists, replace the fan assembly or rectifier unit.
COMM_FAIL (CAN-bus Comm Loss & Current Share Error)
ALM LED (Yellow) fast blinking (2Hz), RUN LED (Green) solid ON
Backplane gold-finger CAN pin oxidation/poor seating, CAN bus terminating resistor missing, CSU monitoring controller offline, or module ID address conflict causing unequal current sharing
1. Verify whether the central monitoring unit (CSU) reports a communication fault for this rectifier slot. 2. Remove module and inspect backplane gold fingers for bent pins, dust, or oxidation; clean with isopropyl alcohol and reseat firmly. 3. Check the 120-ohm CAN bus terminating resistors; if other slots communicate normally, replace this unit.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

Share on-site information

  1. 01

    Identify the exact model

    Record the nameplate, system model and controller or module model.

  2. 02

    Keep the alarm details

    Record the full alarm text, indicator colour, timing and whether it persists.

  3. 03

    Describe recent changes

    Note recent replacements, software updates or configuration changes.

Record information visible in the existing interface. Electrical measurements, disassembly and replacement should follow the applicable manufacturer's manual and be performed by qualified personnel.

Your model and these details will be added to the enquiry form for you to review before sending.

Related technical articles

Browse the technical guides or send a question about this model.

View all articles

Need a replacement module or supporting equipment?

Confirm the full model, system configuration and compatibility requirements before enquiring about suitable products.

Ask about suitable products

Have a model and an on-site issue?

Share the exact model, alarm text and observed symptoms to help identify relevant information and compatibility requirements.

Request technical support