What does it mean to have a cable TV system with a front end box without a layer distribution frame

A patch panel is a device that is used for end-user lines or trunks and can be provisioned and connected. The patch panel is the most important component of the management subsystem, and it is the hub for the cross-connection of the two subsystems, the vertical trunk and the horizontal wiring. Patch panels are typically mounted in cabinets or on a wall.

By installing accessories, the patch panel can meet the needs of UTP, STP, coaxial cable, optical fiber, and audio ** in the whole line. Commonly used patch panels in network engineering include twisted pair patch panels and optical fiber patch panels. According to the different places of use and use, it is divided into two categories: the main distribution frame and the intermediate distribution frame.

The positioning of the patch panel is a modular device that manages the front-end information points at the central office. After the front-end information point cable (more than Category 5 or Category 6 cable) enters the equipment room, it first enters the patch panel, hits the wire on the module of the patch panel, and then connects the patch panel and the switch with a jumper (RJ45 interface). For example, if there is no patch panel, the information point at the front end is directly connected to the switch, so if there is a problem with the cable, it will be rewired.

In addition, the management is also chaotic, and multiple plugging and unplugging may cause damage to the switch port. The existence of the patch panel solves this problem, and better management can be achieved by replacing the jumper.

Usage and usage are mainly configured based on the overall number of network points or the number of network points on that floor (and adjacent floors, depending on how the system diagram is designed). Different buildings, different system designs, and different distribution frames between the main equipment will be different. For example, a building has only four floors, and the main equipment room is arranged on one floor, and the network points of all floors all enter the equipment room, then the number of distribution frames is equal to the number of network point distribution frame ports (24 ports, 48 ports, etc.) of all the network points of this building, and add a certain margin; If a building has 9 floors and the main equipment room is set on 4 floors, then in order to avoid excessive cable length, it is possible to have a sub-equipment room on each floor with switching equipment.

Then the patch panel between the main equipment is equal to the number of network points at Layer 4 and the number of patch panel ports (24 ports, 48 ports, etc.).

One for outdoor use and one for indoors.

The cable TV front-end refers to the demodulator, modulator, etc. in the computer room.

It is mainly a cable TV room, and to put it bluntly, it is the cable TV room equipment of the Radio and Television Bureau.

At present, many hotels and hotels have installed cable TV room equipment, and all rooms can watch TV programs for free. The acquisition of TV programs can be self-run, satellite viewing, network television, etc.

1. The front-end is the so-called cable TV station room, which uses satellites to receive programs and then process and transmit them. 2. It is the current number.

The cable TV front-end box is set with the thirteenth volume of the TV equipment box 13-572, and the branch box in the floor is set according to the size of the second volume of the junction box installation sub-item, if there is no suitable quota item directly applied, you can refer to the quota item installed in the distribution box, and the main material is calculated according to the actual market of the cable TV front-end box.

Cable television (CATV) is a system that uses coaxial cable as a medium to directly transmit TV and FM radio programs to user TV.

This type of series connection has one cabinet per layer, and 5 cabinets are required for 6F.

The triangle is the image symbol of the amplifier, and the semicircle behind it should be the distributor, but in this position, the branch should be placed.

There are two types of power supply for the amplifier, one is 220V power supply, which requires local power, and the other is 60V power supply, which can be supplied from the upper stage through a coaxial cable.

The upper stage of the amplifier depends on the technical scheme of the network, and in general, the upper stage is the optical receiver.

Too small to see. Nowadays, cable TV is basically optical fiber into the community, or optical fiber into the building.

The patch panel is used to organize or classify network cables or lines. After clear classification, it is convenient for repair and maintenance. Generally, if there are not many lines in a small company, there is no need to waste a patch panel, and there are generally only a few network cables. Just mark the number.

It is best to install a network equipment room to facilitate jumpers and manage the connection with network equipment such as switches.

The twisted pair distribution frame is the distribution frame of the network cable, because the network cable and the first line of the enterprise are a lot, it will be very messy to directly connect so many wires to the switch, and the length left when the general wiring will not be so long, so it is often used to connect all the wires to the distribution frame first, and then use a short network cable jumper between the distribution frame and the switch, so that it can look very neat, and the outward side of the cabinet can be very neat. Maintenance is also very convenient.

The function of the patch panel is similar, except that the wires are organized.

I'll explain to you what the distribution frame is for, the distribution frame is generally used in the computer room with program control. Program-controlled** roughly means an extension of a LAN, that is, your enterprise is equipped with program-controlled**, and if you call each other, you can dial the extension. Generally, the four-digit line, after the ** line is connected to the program control machine, it is the extension line that is connected from the program control machine.

A lot. Then snap all these wires to the patch panel, row by row, column by column, and then go out of the patch panel to your extension right away, and you mark the number on the patch panel. In this case, there is a problem with that **.

When you overhaul, check the label on the patch panel, and then follow the line to find the wire. It's easy. If you don't use a patch panel, you'll be tossed to death.

The threads are all messy.

Twisted pair patch panel. Ask the person who specializes in wiring. I don't understand.

What is a fiber optic patch panel and why is it installed in a fiber optic network? Today is a long time to see.