System 1:  Cabinet product introduction W-TEL cabinets can be divided into the following types: By function: fireproof and antimagnetic cabinet, power supply cabinet, monitoring cabinet, shielding cabinet, safety cabinet, Water cabinet, safe, multimedia console, file cabinet, wall-mounted cabinet According to the scope of application: outdoor cabinets, indoor cabinets, communication cabinets, industrial safety cabinets, low-voltage distribution Electric cabinet, power cabinet, IDC server cabinet Extended classification: console, computer case cabinet, stainless steel case, monitoring console, industrial cabinet, standard cabinet, network cabinet. Features: 1. High-quality cold-rolled steel plate and electrostatic plastic powder coating surface, so that Rigidity and corrosion resistance of the cabinet. 1. Good ventilation and heat dissipation. 2. Large load-bearing capacity, can adapt to large-scale clothes server installation. 3. The overall layout is reasonable and the functions are complete. Standard 19-inch equipment Installation structure, cable fixing, management cabling, AC and DC power distribution modules. 4. Large effective equipment installation space. (1600mm high / 31U, 1800mm high / 36U,2000mm / 42U, 2200mm / 47U, 2600mm / 54U) Flexible equipment installation: equipment installation shelf up and down, front and back adjustable. 5. Good universality: suitable for large-scale integrated communication network machines room use. Suitable for remote communication room use. System 2: Cabinet configuration introduction Common configurations are: fan components, ODF units, fiber storage units, DDF unit, AC / DC power distribution, cable managers, power strips, trays, rails, ground protection copper bars. etc. System 3: Data center cold aisle introduction W-TEL cold aisle definition: The cold aisle is closed between the two rows of cabinets, and the cold air is obtained under the floor to form a cold aisle. Cold air passes through the rack and takes away the server's heat into the hot aisle. Reach the best air-cooling efficiency. Data center cold aisle working principle: Cold aisle system composition: 1. Cold aisle sliding door; 2. Pan side panels; 3. Cold aisle ceiling module; 4. Cold aisle isolation module; 5. Fire protection module; 6. Composed of precise air supply module for floor; 7. Cabinet. Cold aisle diagram: