The Differences Between 90°and 180°Keystone Jack

The so-called 90° and 180° refer to the angle between the direction in which the network cable is punched down into the keystone jack and RJ45 plug.

Different customers have different punching down habits. It seems that some people prefer 90° punching down, but some prefer 180° punching down.

In fact, it is absolutely related to the occasion of use and the convenience of cabling works.

Keystone jacks are usually used in two occasion, one is the end user site, such as the office or family living room, bedroom, etc.; the other is the administrator side, which is what we often call the MIS server room.

For the end user site , the height of the keystone jacks from the ground is generally 30 cm, and a cable length of about 30 cm is reserved inside the wall.

If a 180° keystone jack were used, you can install the keystone jack on the face panel first, and then place the face panel horizontally on the ground, and then pull out the reserved cable from wall to directly punch down.

so that the stress point of the keystone jacks is larger, and the punching down work is more convenient.

If a 90° keystone jacks were used, you can image that, there is no good support point to apply force.

But if the keystone jack is installed on the external outlet box as shown in the figure below, regardless of the initial installation and maintenance of the 90° keystone jack, it is more convenient to apply force than 180°.