Texas Instruments TI-89 Titanium Short User Manual page 48

In addition, the teacher model of the TI-89 Titanium includes an
accessory port. This port is used to output visual data so that a classroom
can view the calculator's display on a video device or overhead screen.
To connect your calculator to a computer – Connect your TI-89
Titanium using the USB port and the included USB computer cable.
To connect your calculator to another calculator – Use the USB
unit-to-unit cable or an I/O unit-to-unit cable to connect the TI-89
Titanium to a compatible graphing calculator or peripheral device, such
as a TI-89 or TI-92 Plus graphing calculator or the CBL 2™ and CBR™
systems.
To show your calculator's display to the classroom – Use the
accessory port to connect the TI-Presenter™ video adapter to the teacher
model of the TI-89 Titanium. The TI-Presenter video adapter provides a
video interface between the calculator and video display or recording
devices. Or use the accessory port to connect the TI ViewScreen
overhead panel to your calculator. The TI ViewScreen overhead panel
enlarges and projects the display so an entire class can view it. For more
information about the TI-Presenter video adapter and TI ViewScreen
panel, see the TI E&PS Web site at education.ti.com.
USB port
USB port
Accessory port
TI-89 Titanium ports (teacher model)
42
TI-89 Titanium ports
I/O port
I/O port
Getting Started