ANSHI Test connection block

Test connection block(128 pairs) 1.Test connection block is mounted on the horizontal side of the MDF used for termination between jumper wire and internal exchange cable, 2.It is a normally closed type contact, when the disconnection plug is inserted into the test block, the internal cable and jumper wire will be disconnected, the test plug with cord can be used to test internal line and external line independently, 3.The protection plug can be used to lable and pretect important or special subscribe line, 4.Each unit of test connection block is of max capacity of 128L, which is composed of horizontal module, panel, connection axes as well as dustproof cover etc, both of the internal side and jumper wire side have the cross board. 5. The performance of anti-burn: PPT(UL94V-0) or anti-burn ABS(UL94V-0), combustibility achieved GB/T 5169.7-1985 standardMain distribution frame is applicable by various large-capacity programme controlled switching systems, it is used to connect inside and outside cables, patch cords, to test and protect inner equipments and people’s lives. Suitable for large and small-capacity programme controlled telephone exchanges.Maintenance operators may get more work space because of the blocks can rotate up to 120 degree to fit different working habits. 1,The frame is made of shaped alloy aluminum , it looks nice in shape and construction; 2,Perfect and reliable over-voltage and over-current protection with sound and light alarm, and self resulming fail protection. 3,Both security block and test block are equipped with dualclip, terminals, when cutover outside lines mat be not disconnected, clipping wires and cutting lines will be finished at the same time, the connecting is quick and reliable. 4,The performance of anti-burn: PPT(UL94V-0) or anti-burn ABS(UL94V-0), combustibility achieved GB/T 5169.7-1985 standard 5,DC puncture voltage: 190-260V 6,Pulse puncture voltage: ≤800V(1KV/us voltage increasing rate) 7,Insulation resistance: 1000MΩ(between any two separable modules) 8,Normal temperature resistance: ≤22Ω(R≤2Ω(over-current protection) 9,Contact resistance: ≤3mΩ 10,Contact resistance between reeds: ≤7mΩ 11,Normal temperature current: I=falling from 500mA to 150mA t<20s I=falling from 1A to 500mA t<1.3s I=falling from 2A to 500mA t<0.5s I=falling from 3A to 500mA t<0.2s 12,Sactive time: I=2.5A t<15s(220V/AC) 13,resistance to voltage: ≥1000V(AC)/1min without breakdown or arc 14,Clip-on life: >200 timesTest connection block Protector Connection Block Main distribution frame Optic Distribution Frame Digital Distribution FrameANSHI Test connection block