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Using a Mouse
You can connect both a PS/2–USB and a serial mouse to the PG 720.
When the PG 720 is supplied, the mouse driver for the trackball and
PS/2 mouse is already loaded.
Connecting a PS/2
You can connect an external PS/2 mouse or another external pointing
Mouse
device to an additional PS/2-compatible mouse connector.
Figure 4-5 Connecting a PS/2 Mouse
To connect the mouse, proceed as follows:
1. Switch off your device.
2. Open the port cover on the left-hand side panel.
3. Plug the cable of the PS/2 mouse or another external pointing
4. Secure the connector with the screws.
5. Switch on your PG 720 again.
Switching between
Once you have plugged in the external mouse and restarted your
Internal Trackball
PG 720, the internal trackball is deactivated and remains inactive until
and External PS/2
the PG 720 is powered up again without the external mouse.
Mouse
Table 4-1
No mouse
External mouse con-
nected
PG 720 PII Programming Device
C79000-G7076-C756-02
COM2
Port for
serial mouse
(connector)
device into the mouse connector.
Trackball/External Mouse Mode
State
Internal Trackball
Active
Deactivated
Installing and Operating the PG 720
Port for
PS/2 mouse
(socket)
External PS/2 Mouse
Active
4-9
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