Same tag for 2 MK179 (2 doors/ 1 key)

Hi
is it possible to use two MK179 proximity card reader with the same tag
(one MK179 for each door)
is it possible to remove the coil more than 5 m using a big shielded cable or coaxial (to put MK179 indoor)
Please could you email me circuit diagram of the MK179
thanks
:question:

Yes, you can learn the same tag to two units.
5m should not be a problem.
Hereby a link to the diagram. Please allow 1h for server update.
http://www.velleman.eu/images/tmp/MK179%20diagram.jpg