Digital Distribution Frame DDF 120 Ohm 16 system / 32 system / 48
system Unit Module
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)
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Why Choose Us:
1. Professional manufacturer, 100% tested.
2. Customers solutions in days, not weeks.
3. Warmly services with careful attentions.
