There are two main ways to make connection between Switch and computers in the network, one is to connect via cable when distance is short, another way is to ask KEYSTONE JACK to attend when the office is far away. At this time, the keystone jack is the most important connection medium. The quality of the module plays a key role on the performance of the network .However, in the process of the whole network architecture, the proportion of keystone jack is relatively small that is very easy to be overlooked.

So how to select a keystone jack with good quality? As manufacture of this product,we give suggestion as below:

1.From the appearance of figuring

Judged from the appearance of the packaging of the product is good or bad is one of the most direct method. For protecting the module,Yuhui offers a plastic bag to keep the module inside, avoid high humidity environment during transportation and stock .Some factories due to low price and choose poor inner box without a single plastic bag for each keystone jack.

2.Judge from the price

The cost difference between good quality and bad quality is is very large.The main material for the keystone jack is plastic ABS,PCB and pins with gold plating. Different level of the raw material will cause a big difference.

3.Judge from the color of the contact portion

Checking the color of the contacts, and note the thickness of the gold plating when you order .This will cause big difference on price ,usually,there is 3u"/6U"/15u"/30u”/50u” on customers' requirement .

4.Figuring from the color

Generally speaking, the keystone jack with good quality should be made of strong plastic.It is with smooth surface, accordant color and good connection between the socket and plugs.

5.Judge from the work of the PCB

Check the part of the keystone jack-quality of the PCB (printed circuit board).

Good product solder joints should be smooth, neat and consistent; inferior products appears without uniform size, messy and rough surface.

A keystone jack with good quality can ensure maximum IDC connection over 200 times, maximum socket insertion over 700 times. And with Electrical Performance:

Contact Resistance:(excluding body resistance)≤5mΩ (under normal air condition)

Insulation Resistance:≥1000MΩ (under normal air condition)

Dielectric intensity: DC 1200V, no spark over and fly arc in 1 min.