L1 L2 Common Pull Switch - 21 Images

The two way switch is for landing light situations where two switches control the same light.

L1 l2 common pull switch. The other is the switch wire to the light so commn is the live all the time one l1 or l2 no difference is your switch wire to the light you are supposed to have two red ones as they are both live conductors because one is live continuously and one is only live when you switch the light on. I connected l1 wire to l1 l2 wires to l2 and l3 wires to common but now the light upstairs won t switch off. You can use a two way switch for one way switching. A two way switch for switching a light from two different locations like in a hallway has a common c a l1 and an l2 terminal.

L1 is off when l2 is on and vice versa depending on the switch position. Again some makes of switch may have alternative markings such as l1 l2 and l3. If you wired a wall switch up the wrong way the only thing would be the up down on off would be reversed simply turn the switch 180 degrees to fix. Some brands of switch may have slightly different labeling on the terminals such as c l1 l2 or even l1 l2 and l3.

It can also be used as a one way switch by using the com and l1 terminals only. But when i looked at the new dimmer switch i d bought it had l1 l2 and a symbol i assume means common like two bits of wire twisted round each other. As mentioned already you don t need to worry either l1 or l2 is fine as the switch is simply a toggle. Just ignore the l2 terminal.

A two way light switch has three terminals and is quite like a sigle way switch but now the off position can be utilised also. The difference is that a hub has one collision domain total whereas a switch has a collision domain for each of its ports. L2 switch may be called simply a switch. So an 8 port hub is one collision domain an 8 port switch is 8 collision domains.

This type of switch is used where two switches control the same light.