IHSE USA 434 Series SD- VUE/5x - Manual (Page 31)

Appendix C: Audio/Serial Ports 29
Appendix C: Audio/Serial Ports
Operation & Multi-Port Configuration
This appendix describes audio & serial interface operation for SD-VUE/50A
and SD-VUE/52A.
This extender allows bi-directional stereo audio and a full-duplex serial data to
be sent across the secondary CATx interconnection cable.
Serial Interface - Set Up and Operation
No setting up or user adjustments are required.
The Remote Unit’s serial port is wired as DTE - 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. Select Xon/Xoff software flow control on the printer and PC.
A serial touch screen may be plugged directly into the Remote Unit.
Serial Interface – Handling Multiple Serial Devices
The extender’s serial interface transmits/receives six signals (3 signals in each
direction).
Normally, four of these signals are used for hardware handshaking (in addition
to TX & RX). However, because each handshaking line can support signals up
to 19,200 Baud it is possible to configure the serial interface to handle up to
three simple 2-wire (Tx/Rx only) serial links.
To do this, you will need to construct a custom breakout cable. Please contact
Technical Support for further information.