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Huawei / Indoor power systems

Huawei ETP23006-C1A1 Subrack Equipment information & support

The Huawei ETP23006-C1A1 is a high-reliability 1U 19-inch rack-mount embedded DC power system delivering up to 60A at -48VDC across two high-efficiency rectifier slots, integrated with smart SMU supervision and comprehensive AC/DC circuit protection.

Equipment information

Brand
Huawei
Equipment model
Huawei ETP23006-C1A1 Subrack
Equipment type
Indoor power systems
Controller / software version
Confirm against the installed equipment
View full product specifications
Huawei ETP23006-C1A1 Subrack Official Product View 2

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

System Output Capacity
60 A
Nominal Output Voltage
-48 VDC
Output Voltage Range
-42 ~ -58 VDC
Rectifier Module Slots
2 slots (compatible with R4830G / R4815N rectifiers)
System Comprehensive Efficiency
> 96.0% (ultra-high-efficiency telecom power supply)
Physical Dimensions Spec
43.6 × 482 × 330 mm (1U 19-inch)

Alarms & troubleshooting

AC_FAIL (AC Mains Failure)
SMU ALM indicator solid red; Rectifier green RUN indicator OFF
Commercial grid blackout, upstream AC distribution breaker tripped, or AC input cable disconnected
1. Measure input phase-to-phase and phase-to-neutral voltages at AC terminals using a multimeter. 2. Inspect upstream distribution breakers; verify no downstream short circuit before resetting. 3. Secure all terminal screw connections; deploy emergency mobile generator if mains outage persists.
LLVD_DISC (Low Voltage Load Disconnect)
SMU ALM indicator solid red; Controller UI shows DC undervoltage and LLVD contactor open
Extended AC outage leading to battery deep discharge below LLVD threshold (typically -44.0V DC)
1. Verify critical loads on BLVD ports remain operational and evaluate battery autonomy. 2. Deploy mobile emergency power or start station generator to restore AC mains. 3. Upon AC recovery, confirm rectifiers auto-restart, voltage rises, and LLVD contactor reconnects.
RECT_COMM_FAIL (Rectifier Communication Failure)
Faulty rectifier ALM LED blinking or solid yellow; SMU ALM indicator solid yellow
Poor backplane edge-connector contact, loose internal CAN-bus cabling, unlatched slot handle, or faulty communication transceiver
1. Unlatch and re-seat the affected rectifier module firmly to ensure secure backplane pin mating. 2. Check rectifier slot detection and CAN ID mapping via SMU local LCD or WebUI. 3. Swap the module into an adjacent slot: if the fault follows the module, replace it; if tied to the slot, replace subrack backplane assembly.
RECT_HVSD (Rectifier Overvoltage Lockout)
Faulty rectifier red ALM LED solid, green RUN LED off; unit completely locked out with 0A output
Internal voltage regulation loop failure, PWM control circuit breakdown, or transient surge exceeding hardware threshold (>59.5V DC)
1. Remove the locked rectifier; leave unseated for 60 seconds to discharge internal DC capacitors and reset the latch. 2. Reinsert the unit; observe startup voltage. If the red alarm persists or immediately relocks, remove it immediately. 3. Replace with a certified spare rectifier of identical rating and verify active current-sharing on SMU.
SPD_FAIL (Surge Protective Device Failure)
SMU ALM indicator solid yellow; SPD mechanical status window turns from green to red
MOV varistor degradation/puncture from handling high-energy surge discharge, or auxiliary dry contact wire disconnected
1. Inspect the mechanical inspection window on the AC SPD block to identify the degraded phase cartridge (red window). 2. Verify auxiliary microswitch wiring connecting the SPD dry contact to the SMU DI monitoring port. 3. Pull out the failed pluggable SPD cartridge module and hot-swap with an identical rating replacement.

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

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