Complex sentence: The ccTalk multidrop bus protocol uses an TTL-level asynchronous serial protocol, it uses address randomization to allow multiple similar devices on the bus (after randomisation the devices can be distinguished by their serial number).
Split into simpler sentences: The ccTalk multidrop bus protocol uses an TTL-level asynchronous serial protocol. It uses address randomization to allow multiple similar devices on the bus (after randomisation the devices can be distinguished by their serial number).