MTI Digital Amplifier

The MTI 91643 Digital Amplifier is a cost
effective solution for intercom applications. The
91643 communicates with the intercom master
(i.e. touch screen computer or handheld device)
over a standard Ethernet connection. The
amplifier is designed to connect to a 25V
intercom system. The digital amplifier also
supports up to a 60W paging amplifier interface.
In the standard MTI Intercom system, the 91643
connects to the MTI Intercom termination
boards (81129/81229) via the speaker bus. See
Figure 2 for the typical hookup for the 91643
digital amplifier.