Liebert DME07
Vertiv Liebert DME07 Compact Room Precision Air Conditioner (7.5kW Cooling)
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Liebert DME12
Vertiv Liebert DME12 Small Room Precision Air Conditioner (12.5kW Cooling)
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Liebert DME12MCP5 Precision Air Conditioner
Vertiv Liebert DME12MCP5 Precision Air Conditioner 12.5kW 380V-400V 3Ph (800×500×1950mm)
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Liebert DME20
Vertiv Liebert DME20 Data Center Precision Air Conditioner Indoor Unit (20kW)
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Liebert DataMate3000 DME07
Vertiv Liebert DataMate3000 DME07 7.5kW Precision Air Conditioner
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Liebert DataMate3000 DME12
Vertiv Liebert DataMate3000 DME12 12.5kW Precision Air Conditioner Unit
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Engineering Guide: Telecom Rectifier Gold Finger Pinout, Standalone Jumpers, and CAN Bus Voltage Tuning
A comprehensive technical breakdown of 48V/50A rectifier modules (Huawei R4850G2 / ETP48400 architecture), covering blind-mate connector pinouts, standalone startup jumpers, CAN 2.0B hex commands for CV/CC adjustment, and active current sharing troubleshooting.
Huawei 100G QSFP28 LR4 Optical Transceiver: Cleaning Procedure, Optical Power Testing & Troubleshooting Guide
A comprehensive hands-on engineering guide to Huawei 100G QSFP28 LR4 optical transceivers. Covers fiber end-face inspection and dry/wet cleaning protocols, DDM optical power measurement limits, and step-by-step troubleshooting for multi-vendor switch interoperability.
Huawei R4850G2 Rectifier Pinout Definition, Standalone Startup & 53.5V Wiring Guide
A comprehensive practical guide for field telecom engineers: deciphering the gold-finger backplane pinout of Huawei R4850G2 (50A/3000W), standalone offline startup without controller, CAN bus voltage adjustment, and safety precautions.
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