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AdderLink Installation and Use Page 39
audio with a higher peak-to-peak value than 5 volts this may affect the video picture
causing temporary loss of the picture during peak audio output. If you are
transferring such an audio signal then reduce the PC’s maximum output volume
setting until the picture remains fully stable.
3.9 Microphone support on the AdderLink Gold
You may connect a microphone to both the AdderLink Gold XL unit and the
AdderLink Gold XR unit. The computer attached to the XL unit will take its
microphone input from the last active user port. So, if the keyboard and mouse on
the XR unit were last used to control the computer then the microphone signal will
be taken from the XR unit. Alternatively if the keyboard and mouse connected to the
XL unit were the last to control the computer then the microphone signal will come
from the microphone attached to the XL unit.
If the local computer (2) is selected on the XR unit then, as expected, its microphone
signal will be taken from the microphone attached to the XR unit.
The AdderLink transfers the audio microphone signals between the XR and XL units
by multiplexing the audio signals onto the video signals. A degree of audio noise is
introduced by this process. The effect of this noise may be reduced by setting the
microphone audio input volume on the PC connected to the XL unit to the lowest
practical setting.
3.10 Setting and using the security password
There are many situations where unrestricted access to computers or sensitive
information needs to be controlled. In such circumstances, the AdderLink XL unit
may be locked away in a room or secure cabinet and the computer may be
controlled remotely from the XR unit.
The AdderLink incorporates a security password system that enables the XR unit to
be locked so that the secure computer cannot be controlled. Once a password has
been set the AdderLink XR unit may be disabled by pressing the hotkeys together
with the L (lock) key. The XR unit may only then be unlocked by entering the
password. For example if the hotkeys are set to CTRL and ALT then pressing the
following key combination would cause the AdderLink XR unit to lock.