Design of subsystems

User zone subsystem Design
The user cabling subsystem is composed of connections connecting terminal devices to the information outlet. The number of voice and data information outlets is determined according to user requirements.
Determine the installation position of user information outlet: The RJ45 buried information outlet should be 30cm to 150cm away from the power outlet next to it, information outlet and power outlet along the low side of the horizontal plane 30cm from the floor and power outlet to maintain the same height ).
Horizontal Zone Design
The horizontal wiring subsystem extends the trunk subsystem line to the user's work zone. The system connects an information outlet from each sub-wiring room to each work zone.
The horizontal part of the data system line uses LUCENT and AMP cat5e twisted pair wires. The system provides great flexibility and supports future digital, visual, and multimedia high-speed telephone applications. LUCENT and AMP are cat5e compliant with EIA/TIA568 standards. It can transmit data at a standard transmission speed of 10 Mbps within the range of 150 meters, and ensure the transmission rate of 155Mbps within the range of 100 meters. In addition, it can transmit a variety of 70 v dc voltages and weak current signals at 10 MHz and MHz frequencies at a corresponding distance.
Design of Main Wiring room
The main wiring room consists of cables, connectors, and supporting hardware between devices. It connects various devices in the public system. This subsystem connects the trunk line and the wiring intersection with the public system device.
The main distribution room of the data system is close to the stairs. The Cabinet is a unit of 19 inch 35 type B, 1.8 m * 0.6 m * 0.6 m. It opens both doors before and after, and manages distribution frames and network products. Cat5e twisted pair wires are used for data jumpers.
In the data system wiring room, there should be at least two 220V Voltage and Current 10A single-phase three-level power outlet dedicated for this system, meeting general office lighting requirements. This line should not be connected in parallel with other large devices, and it is best to connect to the UPS first to ensure power supply to network devices.
Inter-device requirement Design
Here we will briefly describe the device environment, installation conditions, and connection methods between devices. According to the standard design requirements, the following requirements should be met as much as possible:
1. Arrange the service equipment room near the elevator to facilitate shipment of heavy equipment;
2. The room temperature should be kept between 18 ℃ and 27 ℃, and the relative humidity should be kept at 30% -- 55%;
3. Maintain indoor dust-free or dust-less, well ventilated, with a brightness of at least 30 feet-candlelight;
4. install an appropriate fire-fighting system (for example, do not direct the sprinkler directly to electrical equipment if wet fire-fighting systems are used );
5. Use fire doors to fire firewalls and flame retardant paints for at least one hour;
6. Provide appropriate door locks. At least one window should be provided for safety exit;
7. Try to stay away from places where dangerous goods are stored;
8. The height of the device room should be at least 2.55 metres of free space, the door size should be at least 0.9 m x 500 m in width, and the floor load capacity should be at least kg/square meter. In addition, the requirements for the K. I .S. S system should cover 3/4 inch (1.9 in combination) wood boards coated with flame retardant paint on the walls of the wiring room with cabling hardware.
The size of the device room depends entirely on the space requirements of the installed electrical equipment.
Try to keep the Cabinet close to the cabling port in the equipment room. The air outlet should be installed above the Cabinet for ventilation.