19 Inch 3U 200 Pairs MDF Main Distribution Frame For Telecommunication

19 inch 3U 200 Pairs MDF Distribution Frame

Key Specifications/Special Features/Technical data:

AS-DDF-MK16 unit is used for the distribution and transfer of digital signals between digital re-use equipments and digital distribution frame is used for the distribution and transfer of digital signals between digital re-use equipments and programme controlled switching systems, as well as among digital re-use equipments.

1, With an open structure, the frame’s surface is sprayed with epoxy plastics by static electricity, with strong adhesion, it looks nice in shape and mild in color. Distribution space is roomy, it looks nice in shape and neat in wiring ,Large capacity, convenient installation, flexible disposition and modulized construction.

2, Work rate: 2Mb/s

3, Performance impedance: 120Ω(balance)

4, Intermediate resistance between the reed terminators: no more than 7m ohm between intermediate reed under the standard examination condition ;

5, Crosstalk ratio: ≥60dB(50kHz~3.1MHz)

6, Insulation loss : ≤0.4dB(50kHz~3.1MHz);

7, Backwave loss: ≥18dB(50kHz~3.1MHz);

8, Intermediate resistance: (AC)/1min no puncture or arc.

a. ≥500V(under the standard examination condition);

b. ≥500V(After of high-low temperature );

c. ≥250V (After of humid);

9, Insulation resistance between high-voltage protection ground and frame: (500V(DC)

a. ≥1×103 MΩ(under the standard examination condition);

b. ≥1×102 MΩ(After of high-low temperature );

c. ≥1×20 MΩ(After of humid);

10,Pulling-out force:

a. ≥24(dia.0.4)

b. ≥ 38(dia.0.5)

c. ≥ 52(dia.0.6)

d. ≥ 96(dia.0.8)

11, Life:200 times

rogramme controlled switching systems, as well as among digital re-use equipments.Environment condition:-5-40 degree Celsius ;Relative humidity <85% (+30 degree Celsius) ;Atmospheric pressure: 70-106Kpa

* Material : stainless steel and cuprum, cuprum gold plating over nickel

* The performance of anti-burn: PBT (UL94V-0)or anti-burn ABS (UL94V-0),Combustibility achieved GB/T 5169.7-1985 standard ;

* Construction features: adopt modularization design , Having features of elegant outlook and high endurance;

* Pulling-out force: tin bronze and silver plating (20-40 uinch), pulling-out force not less than 25N ,

* Intermediate resistance between the reed terminators: no more than 7m ohm between intermediate reed under the standard examination condition ;

* Intermediate resistance: no more than 3m ohm under standard examination condition ;

* Performance impedance:120Ω(balance)

* Work rate:2Mb/s

* Insulation resistance:1000MΩ/500V(DC)

* Resistance to voltage: no breakdown or arc for 1 minute under 1KV(DC)

* Crosstalk ratio:≥60dB(50KHz-210MHz)

* Plug-in loss:≤0.4dB (50KHz-210MHz)

* Back wave loss:≥18dB (50KHz-210MHz)