Epson C82305 - Manual (Page 12)

Baud rate selection
In serial data communication, data is transmitted in the
form of bits. These data bits go out one at a time along
a single path, and in a specified order. The BPS (Bits
Per Second) rate, or speed at which these bits are
transmitted, can be selected using a combination of DIP
switch settings.
Note
In the current loop mode, accurate data transfer cannot be
guaranteed at a baud rate setting exceeding 1,200 BPS.
Table 5. Baud rate selection