The TNB (electricity provided company ) simply not approved.
Reason : They want to preserved power line communication for their own use,
on remote electric usage metering purpose (for resisdent) in future. :?:
So if there is other power line communication device such as X10 in use, it may cause interference.
I obtains this info 2 years ago, I don't know if it is allow now.
However, marxmax, for hobby/education purpose, just go ahead,
for commercial product, please check with TNB before you start.
Beside X10, there is DALI, CEBUS
www.domosys.com
Anybody know how DALI and CEBUS work? Similar to X10?