Liebert DataMate3000-2 DME22
Vertiv Liebert DataMate3000-2 DME22 Computer Room Precision Air Conditioner 22kW
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Liebert GXE2
Vertiv Liebert GXE2 Online Double-Conversion High-PF Tower Industrial UPS System (6kVA-20kVA / PF 0.9)
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Liebert LPC
Vertiv Liebert LPC Constant Temp & Humidity Precision Air Conditioner (5kW-20kW)
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Liebert PEX AC 70kW
Vertiv Liebert PEX 70kW Large Datacenter Precision Air Conditioner
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Liebert PEX2 Precision AC
Vertiv Liebert PEX2 Series Precision Data Center Air Conditioner (20kW-100kW/EC Fan/R410A/iCOM)
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Liebert PEX4
Vertiv Liebert PEX4 Inverter Room-Based Precision Air Conditioner (30kW-120kW)
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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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