Transfer Speeds

The Volvo Controller area network (CAN) has two transfer speeds.

• HS CAN (high speed) has a transfer rate of 500 kbit/s.
• LS CAN (low speed) has a transfer rate of 125 kbit/s.

1 kbit/s = 1024 bits per second (1 byte = 8 bits).

For serial communication (Volcano Lite) between a control module and a slave control module the transfer rate is 10.4 kbit/s.

There is another serial standard known as LIN. This is an international standard which is becoming more commonly used. Its function is almost identical to that of Volcano Lite. The difference is in the communication method and rate. The transfer rate for LIN is 9.6 kbit/s.