Adder Technology ALSTX/ALSRX, ALTX/ALRX, ALGTX/ALGRX manual Microphone support on the AdderLink Gold

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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.

AdderLink

Installation and Use

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Contents Adder Link Safety information About this manualWarranty TrademarksRadio Frequency Energy European EMC directive 89/336/EECContents Using the AdderLink AppendicesAdderLink features IntroductionAdditional AdderLink Gold features Product information AdderLink XL transmitter and XR receiverAdderLink Gold XL transmitter and XR receiver AdderLink Installation and Use AdderLink Gold package contents part code ALGTX/ALGRX AdderLink 19 inch rack-mount kit part code RMK-ALAdderLink cable pack part code VSCP5 AdderLink Gold cable pack part code VSCP5-GOLDAdderLink Gold cable pack part code VSCP6 Installation What you will needIf you have the AdderLink Gold then you may also require Connecting your devices Mounting the AdderLinkTypical AdderLink installation Typical AdderLink Gold installation Configuring the AdderLink Configuring your PCsOption switches see section Setting the option switches XL unit Switches 7 AdderLink XR option switches normal and Gold models AdderLink XL option switches normal and Gold models Setting the video compensation StepStep Configuring user-selectable options Summary of AdderLink configuration options B1f B2f F1f F8fH1f H2f H3f M1f M2f M6f M7f S1f S2f S3f S4f S5f S7f S8fOther useful installation information AdderLink Installation and Use Using the AdderLink Power on statusAdderLink indicator lights Indicator Colour Status MeaningAdderLink XL AdderLink XRAdderLink Gold XL AdderLink Gold XRNUM, Caps and Scroll lock lights flash in sequence Keyboard NUM, Caps and Scroll lock indicatorsNUM, Caps and Scroll lock lights flash together Keyboard hotkey control NUM and Scroll lock flash alternately with Caps lockAdderLink Installation and Use Timeout mode Exclusive use modeMouse control Stereo audio support on the AdderLink GoldSetting and using the security password Microphone support on the AdderLink GoldBaL F1f Querying the AdderLink’s firmware versionH2f H3f AdderLink configuration optionsRS232 protocol options Mouse mode and mouse switching of channels B1f B2f S1f S2f S3f S4f S5f S7f S8fResetting all configuration options to their default state Cable specifications Appendix A. Cable and connector specificationsA2. Computer connections AdderLink Installation and Use A3. Twisted pair cable Maximising the video quality for long cable lengths A4. RS232 port pin assignmentsAdderLink to printer with 25-way connector Mouse to AdderLink cable / adapterProblem Appendix B. Problem SolvingAction AdderLink Installation and Use AdderLink Installation and Use S TA L L AT I O N & U S E