JULABO MA-26 Heating Circulators - Manual (Page 36)

Menu functions
36
9.4. MENU SERIAL - BAUDRATE, PARITY, HANDSHAKE
Menu level 1

For communication between circulator and a PC or a superordinated
process control system the interface parameters of both units must be
identical.
Factory settings:
4800
Baud
even
hardware
handshake
Level 2 Parameter level 
Press the key if a parameter is to be
retained.

>br< - BAUDRATE

The parameter flashes, switch by pressing
and
4.8 = 4800 Baud
9.6 = 9600 Baud
19.2 = 19200 Baud
38.4 = 38400 Baud

>PtY< - PARITY

The parameter flashes, switch by pressing
and
0 no: Datenbits = 8; Stopbits = 1
1 odd: Datenbits = 7; Stopbits = 1
2 even: Datenbits = 7; Stopbits = 1

>HS< - HANDSHAKE

The parameter flashes, switch by pressing
and
Xon/Xoff-protocol (Software handshake)
Protocol RTS/CTS (Hardware handshake)