IHSE USA 461 Series DVXi/ET KVM Extender - Manual (Page 46)

DVXI/ET-XX KVM-EXTENDER
46
Appendix C: Devices w/ serial/AUDIO Option
The Audio/Serial Option consists of daughter boards which allow bi-directional stereo audio
and a full-duplex serial data link to be sent across the regular interconnection cable in
addition to keyboard, mouse and DVI video. • To set up your video, keyboard, mouse follow
the instructions in the user guide. • To set up the extender’s audio and serial link, please
follow all of the instructions detailed in this addendum. If you have any questions, contact
Technical Support.
Technical Data
Serial link:
Serial speed: Any up to a maximum of 19,200 Baud
Serial Data Format: Format Independent
Flow Control (Single head): Hardware Handshake: RxD, TxD, RTS, CTS, DTR,
DSR are sent across link
Flow Control (Dual head): XON/XOFF Software Handshake: only RxD and
TxD are sent across link
AUDIO link:
Description: Bi-directional stereo audio link
Transmission Method: Digitised virtually CD quality audio (16-bit,
38.4KHz)
Signal Levels: Line-Level (5 Volts Pk-Pk maximum)
Input Impedance: 47K
Local Unit Connectors: 2 x 3.5mm stereo jack socket (Line In & Line Out)
Remote Unit Connectors: 2 x 3.5mm stereo jack socket (Line/Mic In & Line
Out)
Microphone Support: A microphone may be connected to the Remote Unit.
A Pull-up resistor provides bias for condenser micro-
phone. Optional microphone amplification to +17dB
Serial Interface - Set Up and Operation
No setting up or user adjustments are required. Please note that on the dual access model, the
serial link is always active Please bear in mind that the Remote 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 Remote Unit, you will need a Null-Modem (crossover) cable between the
Remote Unit and the printer. A Touch screen may be plugged directly into the Remote Unit.
Please note, that Dualhead KVM Extender support a 3-wire-
interconnection (Tx/Rx/GND) only. All connected devices must
support Software Handshake (XON(XOFF)