Eaton Scantronic i-on10 - Page 11

Introduction to i-on10
Page 11
 Loudspeakers − The i-on10 and KEY-FKPZ keypad have connections for a
loudspeaker, which you may want to use to increase the volume or location of
setting and unsetting tones. The loudspeaker must have an impedance of 16 Ohms.
You must not connect two loudspeakers in parallel to the same port.