10000 pairs of VDF audio distribution frame optical access communication customized by the manufacturer
10000 pairs of VDF audio distribution frame optical access communication customized by the manufacturer The VDF is an audio distribution frame. VDF, also known as audio distribution unit, provides audio transmission in communication transmission and plays a vital role in communication transmission. The distribution frame is used for the terminal subscriber line or trunk line, and can be deployed and connected to the equipment. The distribution frame is an important component in the management subsystem, and it is the hub to realize the cross connection between the vertical trunk and horizontal cabling subsystems. Distribution frames are usually installed in cabinets or walls. By installing accessories, the distribution frame can meet the requirements of UTP, STP Coaxial cable , optical fiber, audio and video. The distribution frames commonly used in network engineering include twisted pair distribution frames and optical fiber distribution frames. It can be divided into main distribution frame and intermediate distribution frame according to different locations and uses.
Name: VDF audio distribution unit
Product name: VDF audio distribution unit
Product features: 19 "standard installation, equipment modular design, flexible configuration and fast installation. Audio distribution unit is configured to complete external wiring Cable Circuit connection with switching equipment
Distribution and dispatching, both up and down routing.
Product technical parameters:
Environmental conditions for use:
Ambient temperature: 0 ℃~40 ℃;
Humidity: guaranteed performance: 10%~90% (35 ℃)
Temperature during transportation and storage: - 40 ℃~70 ℃.
Insulation resistance: insulation resistance ≥ 1000M Ω
Dielectric strength: it can withstand the AC voltage of 45Hz~60Hz sine wave with effective value of 1000V for 1 minute without breakdown and flashover.
Contact resistance between terminals: contact resistance between terminals ≤ 7m Ω W After 200 times of plugging and unplugging, contact resistance increment shall be ≤ 3m Ω W.
Ending contact resistance: ≤ 3m Ω; After conductor connection test, the increment of contact resistance ≤ 2mW
Pull off force: ≥ 25N.
Applicable conductor: core wire diameter is 0.4mm~0.8mm, and large outer diameter (including insulation layer) shall not exceed 1.4mm.
Security unit
Insulation resistance: ≥ 1000MW.
Branch breakdown voltage: Udc=190 ～ 260V
Pulse breakdown voltage: ceramics Discharge tube Umax ≤ 800V (at 1000V/US rising rate)
Semiconductor tube Umax ≤ 400V (at 1000V/US rising rate)
Inactive current: 100mA, 1H inaction (when the test voltage is 60Vdc)
Failure protection performance: when the discharge current of the discharge tube reaches 2. High, line a (b) in the discharge circuit is grounded within 15 seconds and generates alarm indication
Impulse life: after the overvoltage protection device of the security unit undergoes the 10/1000ms impact life test (100A, 300 times), the output terminal voltage should be ≤ 800V. Insulation resistance shall be ≥ 100MW.
