Need help with circuit component

[Pontus HåBe Holmberg]

Hi!
I'm trying to create a circuit that will read the rpm from a engine via the ignition coil. So i need a LM2907 to convert the frequency from the coil i have around the ignition cable.
I found this schematic, but i don't understand what component is needed for K1 K2. It only says K1x03 (for K1) and K1x02 (for K2).

Here is the schematic:

Thanks in advance

 

[AdityaRajNayak]

Please visit the following link for details on this circut. This may be helpful.
https://code.google.com/p/multidisplay/wiki/RPM

 

[FvM]

but i don't understand what component is needed for K1 K2.

Just connectors.

 

[yassin.kraouch]

Hi!
I'm trying to create a circuit that will read the rpm from a engine via the ignition coil. So i need a LM2907 to convert the frequency from the coil i have around the ignition cable.
I found this schematic, but i don't understand what component is needed for K1 K2. It only says K1x03 (for K1) and K1x02 (for K2).

Here is the schematic:
View attachment 99699
Thanks in advance

as explained above, k1 and K2 are just connector :
K2: 2 = Signal in from Injector 1 = Ground

K1: 3 = 5V Supply 2 = Output 1 = Ground