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

Huawei / Outdoor power systems

Huawei MTS9000A Equipment information & support

The Huawei MTS9000A is an all-in-one outdoor integrated telecom energy cabinet engineered for edge and base station deployments, featuring an IP55-rated protective shell, 200A to 600A dynamic -48V DC power rectifiers, intelligent multi-compartment climate control, and the SCC800 monitoring core for advanced electrical distribution.

Equipment information

Brand
Huawei
Equipment model
Huawei MTS9000A
Equipment type
Outdoor power systems
Controller / software version
Confirm against the installed equipment
View full product specifications
Huawei MTS9000A Outdoor Integrated Telecom Power Cabinet IP55 200A-600A DC Power & Climate System Official Studio Photo 1

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

Physical Form Factor
Outdoor Integrated Telecom Energy Cabinet
System Output Capacity
Maximum Supports 200A~600A DC Power Supply Architecture
Cooling Method
Heat Exchanger (HEX) (HEX) / Integrated Industrial Climate Air Conditioner
Battery Energy Storage Configuration
Built-in Safe Lithium Battery Compartment/Lead-Acid Insulated Battery Bay
System Monitoring Controller
SCC800 Intelligent Site Controller
Surge Protection
AC 40kA / DC 20kA Combined Surge Protection

Alarms & troubleshooting

AC_FAIL (AC Mains Failure)
SMU ALM indicator steady red; all rectifier green power LEDs off, yellow alarm LEDs blinking
Utility grid outage, phase loss, main AC input circuit breaker tripped, or upstream breaker open
1. Measure AC input terminals with a multimeter to verify if line voltage is within range (85V AC-300V AC). 2. Inspect the main AC input circuit breaker in the ACDU; check for downstream shorts and reset if tripped. 3. Check ATS/AC contactor switching status. 4. If prolonged utility failure occurs, deploy emergency mobile generator via the standby AC input connector.
DC_VOLT_LOW (DC Undervoltage / LLVD Protection Active)
SMU ALM indicator steady red, audible alarm active, LLVD/BLVD contactor tripped open
Prolonged battery discharge reaching LLVD/BLVD threshold (default 45V-43.2V), total rectifier capacity failure, or severe DC bus overload
1. Check SMU alarms and bus voltage to confirm whether battery depletion is caused by prolonged AC outage. 2. Shed non-critical loads or start an emergency generator to bring rectifiers back online. 3. Verify LLVD/BLVD status on the SMU display; use emergency manual reconnection via SMU if critical service must be restored. 4. Once power is restored, ensure battery charge current limit is correctly set per manufacturer spec (typically 0.1C10 to 0.15C10).
REC_FAULT / REC_HVSD (Rectifier Fault / Output Overvoltage Lockout)
Faulty rectifier red FAULT LED solid on, yellow alarm LED off, green power LED off
Internal power component damage, output voltage feedback loop failure exceeding HVSD threshold (>59.5V DC), or CAN bus current-share loss
1. Identify the faulty rectifier slot number and exact error log from the SMU controller display. 2. Unlock and extract the faulty rectifier module by 5 cm to disconnect power, wait 30 seconds, then re-insert firmly. 3. If the red indicator stays on and output remains locked, the internal hardware is damaged; replace with an identical spare (e.g., R4850G2/R4875G1). 4. Inspect the subrack backplane connector and CAN bus communication pins for bent pins or contamination.
SPD_FAULT (Surge Protective Device Failure)
SPD physical inspection window changes from green to red; SMU ALM LED turns amber/red
Lightning surge or high-voltage transient absorbed causing varistor degradation/burnout, or remote alarm signal wire detached
1. Inspect the visual indicator window on the AC or DC SPD modules inside the cabinet to identify the red/failed cartridge. 2. Verify the SPD dry contact signal cable connections to the SMU sensor port are secure. 3. Turn off the upstream SPD breaker, pull out the damaged plug-in surge cartridge, and replace with an identical rating module. 4. Measure the ground loop resistance from the cabinet ground bar to the earth electrode; ensure it meets telecom standards (<10 Ohms, or <1-5 Ohms per local code).
BATT_TEMP_HIGH (Battery Over-Temperature Alarm)
SMU ALM indicator lit amber/red, thermal cooling unit (TCUC/Air conditioner) running at max capacity
Battery compartment TEC/air conditioner cooling failure, air filter severely clogged, battery cell thermal runaway, or faulty NTC temperature sensor
1. Inspect the battery door cooling unit (TCUC heat exchanger, TEC, or direct air fan) to verify power breaker and fan operation. 2. Clean or replace clogged cabinet intake and exhaust air dust filters to restore ventilation. 3. Measure individual battery cell temperatures with an infrared thermometer to detect potential thermal runaway (isolated high temp cell); isolate the affected battery string breaker immediately. 4. Compare SMU reported temperature with an infrared reading; if discrepancy exceeds 5°C, calibrate or replace the NTC battery temperature probe.

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