The RJ-013 is based on 1.5 micron CMOS technology, which ensures low power consumption and high frequency operation. It operates in synchronous or asynchronous modes at any bit rate up to 20 Mbps. In synchronous mode, pseudo-random sequences of 511 and 2047 bits are generated. In synchronous mode, only a 511 bit long pseudo-random sequence is supported. The asynchronous character length can be configured between 8-11 bits.
Parity is optional, even or odd.
Single errors can be injected into the transmitter to verify that the communication line is alive.