



Propagation delay
Delay skew
D.C.loop resistance
Insertion loss(attenuation)
NEXT(near-end crosstalk)
PS NEXT(power-sum NEXT)
Return loss
ACR (attenuation to crosstalk ratio at the near end)
PSACR (power-sum ACR-N)
ELFEXT(equal level far-end crosstalk)
PS ELFEXT(power-sum ELFEXT)
Manual Test Items:
SingleAuto test item
BER Test, up to 10
Items | Range | Resolution | Accuracy |
Length | 0 m ~ 176 m (UTP) 0 m ~ 200 m (Coax) | 0.1 m | ±2.5 m (depand on the cable ) |
Propagation Delay | 0 ns ~ 850 ns | 1 ns | ±7 ns |
Delay Skew | 1 ns | 1 ns | ±15 ns |
DC Resistance | 0 Ω ~ 100 Ω | 1 Ω | ±2 Ω |
RF Frequency | 1 MHz ~ 250 MHz | NEXT, Return Loss, ELFEXT: 1 to 31.25 MHz: 150 kHz 31.25 MHz ~ 100 MHz: 250 kHz 100 MHz ~ 250 MHz: 500 kHz Insertion Loss: 1 to 250 MHz: 1 MHz | |
RF Items | NEXT: 0 ~ 70 dB Insertion Loss: 0 ~ 40 dB | 0.1 dB | ±2 dB (Insertion Loss) |



We are based in Beijing, China, start from 2006,sell to South America(20.00%),South Asia(15.00%),North America(10.00%),Africa(10.00%),Mid East(10.00%),Eastern Europe(10.00%),Northern Europe(5.00%),Western Europe(5.00%),Eastern Asia(5.00%),Southeast Asia(5.00%),Central America(3.00%),Oceania(2.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
fusion splicing machine,OTDR,fiber optic equipment,ethernet tester,Optical Power Meter
4. why should you buy from us not from other suppliers?
Beijing W&F technology Co.,LTD is founded in 2006.It is a hi-tech company specialized in manufacturing and trading fiber splicing machine and testing equipments . Our company focuses on the telecommunication 12 years.We can provide better solutions.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DAF
Accepted Payment Currency:USD,EUR;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Spanish,Portuguese,German,Arabic,French,Russian