Denso GT20Q-SB User Manual page 127

Word length (RS-232C interface)
7 bits
Parity(RS-232C interface)
<Disabled>
Even number
Stop bit (RS-232C interface)
<1 bit>
CTS signal control (RS-232C interface)
Not controlled
114
<8 bits>
Odd number
2 bits
<Controlled>