Rose Electronics CrystalView DVI Quad - Manual (Page 37)

33 CRYSTALVIEW DVI QUAD INSTALLATION AND OPERATIONS MANUAL
Appendix D - Serial / Audio Setup and Operation
The Audio/Serial allows bi-directional stereo audio and a 3 wire (Tx/Rx - XON/XOFF) serial data link to be sent
across the regular interconnection cable in addition to keyboard, mouse and DVI video.
Serial Interface - Setup and Operation
No setup or user adjustments are required. Please note that the serial link is always active.
The Receiver Unit’s serial port is wired as DTE (i.e. the same as that on a PC). To connect a serial printer (or
other DTE rather than DCE device) to the Receiver Unit, use a Null-Modem (crossover) cable between the
Receiver Unit and the printer.
A serial touch screen may be plugged directly into the Receiver Unit.
Note: The devices support a 3-wire connection only (Tx/Rx/GND). Attached devices must support
software handshake (XON / XOFF).
Audio Interface - Setup and Operation
The audio interface is line-level and is designed to take the output from a sound card (or other line-level
source) and transmit the audio to a set of powered speakers connected to the receiver unit. Stereo audio may
be transmitted either way across the link (simultaneously). No setup is required unless a microphone is
connected to the remote unit.
Connect up the extender as follows
:
Take the line-level output from your sound card (green connector) and connect it to the ‘Line In’ on the
extender. Connect a set of powered speakers directly to ‘Line Out’ connector on the receiver unit.
Audio Interface - Using a Microphone
A microphone may be plugged into the ‘Line In’ connector on the Remote Unit. There are two ways of setting
up a microphone:
1. The Transmitter Unit’s ‘Line Out’ connection should normally be wired to the microphone input (Red) on
your sound card. The sound card should then be set up to provide additional amplification (+20dB). This is
the preferred connection method.
2. Alternatively, the Remote Unit itself can provide microphone amplification. To set this, open up the Remote
Unit and locate the jumper labeled ‘MIC’ on the daughter board. Connect this jumper across the pins. The
Transmitter Unit’s ‘Line Out’ connection should then be wired to ‘Line In’ (Blue) on your sound card.
If your microphone is already amplified, follow the second method but DO NOT install the amplification jumper
in the Remote Unit.