Support & Troubleshooting

Find equipment information and technical guides by model, and bring clarity to on-site issues.

Find support by equipment

Choose a device to view its information and ask a specific technical question.

532 devices

ZTESystem Controllers & Monitoring Units (SMU/CSU)

CSU401S

ZTE CSU401S Centralized Supervisory Unit (With Local LCD Display)

Product information
View support

ZTESystem Controllers & Monitoring Units (SMU/CSU)

CSU500B

ZTE CSU500B Central Supervisory Unit Module (High-Contrast LCD Display Telecom Power Brain)

Product information
View support

HuaweiIndoor Telecom Power Systems

CT016M501

Huawei CT016M501 Power Subrack Backplane Busbar Adapter Module (High-Current Blind-Mate)

Product information
View support

BydDC Power Systems (-48V)

D48-1800B

BYD D48-1800B Digital Switch-Mode Rectifier Module (-48V 30A 1800W Digital LLC Resonant Anti-Backfeed)

Product information
View support

HuaweiIndoor Telecom Power Systems

DBU50B-N12A3

Huawei DBU50B-N12A3 Embedded DC Backup Power Unit (-48V 50A 19-Inch Subrack)

Product information
View support

PotevioDC Power Systems (-48V)

DMA14-4850A

Potevio DMA14-4850A Industrial Carrier-Grade Telecom Rectifier Module (-48V 50A 2900W)

Product information
View support

Technical guides & references

Explore published articles on equipment selection, interfaces and maintenance.

View all articles

Technical articles

Huawei ETP48200-C5B6 5U 200A Embedded Telecom DC Power System Engineering Selection and Buyer's Guide (2026 Edition)

A comprehensive engineering evaluation of the Huawei ETP48200-C5B6 5U 200A embedded telecom DC power subrack, covering electrical architecture, 4-bay rectifier module load-sharing (R4850G2/R4850N1), SMU02C/SMU02B intelligent monitoring network integration, dual-tier Low Voltage Disconnect (LLVD/BLVD) battery protection, legacy telecom site modernization, and physical authenticity verification against refurbished counterfeits.

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