LED display wiring considerations
LED display wiring considerations
LED full-color display installation is a big project, involving strong and weak power wiring, wiring good or bad directly affect the display after the use of effect, stability and safety. Wiring is so important, can not be arbitrary, should be a professional and experienced construction team to be responsible for, some of these matters must be noted:
1, LED full-color display cable logo: cable sheath about 1M intervals marked with the manufacturer's factory name or code and cable model specifications, manufacturing year, cable length.
2, LED full-color display plastic trunking and its accessories model specifications should meet the design requirements, and select the appropriate stereotypes. The laying place of the ambient temperature shall not be less than -15 degrees Celsius, its flame retardant performance oxygen index should not be less than 27% inside and outside the trunking should be smooth without pricks, there should be no distortion, warping and other deformation phenomena, and there is a certificate of conformity of the product.
3, cable deployment should be redundant. Cabinet, twisted-pair cable reserved length, generally 3 ~ 6m terminal for 0.3 ~ 0.6m fiber optic cable in the equipment end of the reserved length is generally 5 ~ 10m with special requirements should be reserved according to the design requirements of the length.
4, LED full-color display equipment laying activities between the floor, the plate laying tight and solid, per square meter level of allowable deviation should not be greater than 2mm floor strut firm, active floor anti-static measures should be in line with the design of the floor and the product description of the grounding requirements.
5, each pair of stranded wire should try to adhere to the twisted state, non-twisted length should not be greater than 13mm
6, stripping the sheath shall not scratch the insulation layer, should use special tools to peel.
7, the cable shall not occur in the middle of the joint phenomenon.
8, the longest twisted-pair line distance of 100 meters, beyond 100 meters of twisted-pair repeaters can be used to link the extension, each section of the line in the repeater data can not be more than three.
9, fiber optic transmission distance: transmission rate of 1Gb/850nm ordinary 50μm multimode fiber transmission distance 550m ordinary 62.5μm multimode fiber transmission distance 275m new 50μm multimode fiber transmission distance 1100m.
10, LED display cable bending radius should comply with the following provisions:
a, unshielded 4 pairs of twisted-pair cable bending radius should be at least 4 times the outer diameter of the cable in the construction process should be at least 8 times.
b, shielded twisted-pair cable bending radius should be at least 6 to 10 times the outer diameter of the cable.
c, trunk twisted-pair cable bending radius should be at least 10 times the outer diameter of the cable.
d,The bending radius of fiber optic cable should be at least 1.5 times the outer diameter of the fiber optic cable, and should be at least 20 times during construction.
11, pair of twisted-pair cable in the information socket (RJ45 connected, must be in accordance with the color code and the order of the pair of card to connect. Socket type, color coding and numbering should be consistent with the provisions of T568A T568B.
12, the production of crystal head, the outer maintenance layer of the cable needs to be pressed in the connector and not outside the connector. Because when the cable is subjected to external tension when the force of the entire cable, otherwise the force of the cable and the joints connected to the metal part.
13, twisted-pair cable and wiring module (IDCRJ45 snap-in, should be operated in accordance with the design and manufacturer's regulations.
14,Shielded twisted-pair cable shield and connector terminals at the shield reliable contact, the cable shield should be with the connector shield 360o circumference contact, contact length should not be less than 100mm
15, each strand of double rubber wire should be glued at both ends of the label and number, in order to facilitate the installation and maintenance.
16, LED full-color display handover room, equipment room to provide reliable construction power supply and grounding device.
17, construction site temporary power supply should have a complete plug. Switch. Socket. Leakage maintainer settings, temporary power cable. Power cord in three colors: red fire wire. Zero line blue. Ground **. All unidirectional sockets should be “left-zero, right-fire center ground” or “on the fire under the zero” connection.
18, the power cord from the ground through the pipe, the need to use the casing to connect tightly, the ground under the joints are not allowed, in and out of the ground must be set with elbows. The ground is not closed before the need to maintain a good PVC casing, do not allow rupture damage, laying floor tiles, PVC casing should be covered, nail wood flooring, the power cord should be laid along the corners of the wall to prevent damage to the power cord by nails.
19, the power line to the horizontal and vertical, not diagonal, to prevent damage by the hammer. Nail damage.
20, LED full-color display various strong and weak power socket interface to minimize. All sockets. Switches should be higher than 300MM above the ground, and will not be sliding door furniture and other things blocked.
21, weak power lines and strong power lines are not allowed to share a set of pipes, the distance between them is more than 0.5m.
22, LED full-color display project, the power supply between the panels should be controlled separately as far as possible, as far as possible to achieve a separate power supply, do not worry about each other.
1, LED full-color display cable logo: cable sheath about 1M intervals marked with the manufacturer's factory name or code and cable model specifications, manufacturing year, cable length.
2, LED full-color display plastic trunking and its accessories model specifications should meet the design requirements, and select the appropriate stereotypes. The laying place of the ambient temperature shall not be less than -15 degrees Celsius, its flame retardant performance oxygen index should not be less than 27% inside and outside the trunking should be smooth without pricks, there should be no distortion, warping and other deformation phenomena, and there is a certificate of conformity of the product.
3, cable deployment should be redundant. Cabinet, twisted-pair cable reserved length, generally 3 ~ 6m terminal for 0.3 ~ 0.6m fiber optic cable in the equipment end of the reserved length is generally 5 ~ 10m with special requirements should be reserved according to the design requirements of the length.
4, LED full-color display equipment laying activities between the floor, the plate laying tight and solid, per square meter level of allowable deviation should not be greater than 2mm floor strut firm, active floor anti-static measures should be in line with the design of the floor and the product description of the grounding requirements.
5, each pair of stranded wire should try to adhere to the twisted state, non-twisted length should not be greater than 13mm
6, stripping the sheath shall not scratch the insulation layer, should use special tools to peel.
7, the cable shall not occur in the middle of the joint phenomenon.
8, the longest twisted-pair line distance of 100 meters, beyond 100 meters of twisted-pair repeaters can be used to link the extension, each section of the line in the repeater data can not be more than three.
9, fiber optic transmission distance: transmission rate of 1Gb/850nm ordinary 50μm multimode fiber transmission distance 550m ordinary 62.5μm multimode fiber transmission distance 275m new 50μm multimode fiber transmission distance 1100m.
10, LED display cable bending radius should comply with the following provisions:
a, unshielded 4 pairs of twisted-pair cable bending radius should be at least 4 times the outer diameter of the cable in the construction process should be at least 8 times.
b, shielded twisted-pair cable bending radius should be at least 6 to 10 times the outer diameter of the cable.
c, trunk twisted-pair cable bending radius should be at least 10 times the outer diameter of the cable.
d,The bending radius of fiber optic cable should be at least 1.5 times the outer diameter of the fiber optic cable, and should be at least 20 times during construction.
11, pair of twisted-pair cable in the information socket (RJ45 connected, must be in accordance with the color code and the order of the pair of card to connect. Socket type, color coding and numbering should be consistent with the provisions of T568A T568B.
12, the production of crystal head, the outer maintenance layer of the cable needs to be pressed in the connector and not outside the connector. Because when the cable is subjected to external tension when the force of the entire cable, otherwise the force of the cable and the joints connected to the metal part.
13, twisted-pair cable and wiring module (IDCRJ45 snap-in, should be operated in accordance with the design and manufacturer's regulations.
14,Shielded twisted-pair cable shield and connector terminals at the shield reliable contact, the cable shield should be with the connector shield 360o circumference contact, contact length should not be less than 100mm
15, each strand of double rubber wire should be glued at both ends of the label and number, in order to facilitate the installation and maintenance.
16, LED full-color display handover room, equipment room to provide reliable construction power supply and grounding device.
17, construction site temporary power supply should have a complete plug. Switch. Socket. Leakage maintainer settings, temporary power cable. Power cord in three colors: red fire wire. Zero line blue. Ground **. All unidirectional sockets should be “left-zero, right-fire center ground” or “on the fire under the zero” connection.
18, the power cord from the ground through the pipe, the need to use the casing to connect tightly, the ground under the joints are not allowed, in and out of the ground must be set with elbows. The ground is not closed before the need to maintain a good PVC casing, do not allow rupture damage, laying floor tiles, PVC casing should be covered, nail wood flooring, the power cord should be laid along the corners of the wall to prevent damage to the power cord by nails.
19, the power line to the horizontal and vertical, not diagonal, to prevent damage by the hammer. Nail damage.
20, LED full-color display various strong and weak power socket interface to minimize. All sockets. Switches should be higher than 300MM above the ground, and will not be sliding door furniture and other things blocked.
21, weak power lines and strong power lines are not allowed to share a set of pipes, the distance between them is more than 0.5m.
22, LED full-color display project, the power supply between the panels should be controlled separately as far as possible, as far as possible to achieve a separate power supply, do not worry about each other.