User manual BIAMP RCU

[. . . ] ADVANTAGE® RCU Remote Control Unit Operation Manual ® 9/2/99 Biamp Systems, 10074 S. W. Arctic Drive, Beaverton, Oregon 97005 U. S. A. (503) 641-7287 http://www. biamp. com an affiliate of Rauland Borg Corp. blank RCU TABLE OF CONTENTS Connections Controls Programming Application RS-232 Control Warranty pg. 10 INTRODUCTION The ADVANTAGE® RCU Remote Control Unit allows control of certain other ADVANTAGE® programmable products, such as VRAM, MSP, & SPM522D, via external potentiometers and/or contact-closures. [. . . ] In some cases, these forms of muting may actually be considered desirable. When a definition has been established for a particular pot, an icon and device number will appear above the fader on the Main Screen. The icon and device number indicate which device the pot is programmed to control. When the mouse pointer is positioned over the fader, a pop-up `hint' appears which provides a detailed description of the function which the pot is programmed to perform. Connecting Pots to the RCU: The RCU is designed to be used with linear taper pots. The resistance value of the pots can be as low as 5K ohms or as high as 50K ohms. Pins 1 through 23 of the "Remote Control" connector on the RCU are for pot inputs. Pin 24 is a reference voltage output (which is approximately +5 volts DC), and pin 25 is ground. The `high' (clockwise) side of all pots should be connected to the reference voltage output on pin 24 of the remote control connector. The `low' (counter-clockwise) side of all pots should be connected to ground on pin 25 of the remote control connector. The wiper of each pot should be connected to the pin corresponding to the pot number (1 through 23). In some cases, the wiper could be connected to more than one pin if you want to control more than one volume level with the same pot (to simulate a `ganged' pot). 6 SETUP LOGIC INPUT DEFINITION SCREEN Up to 24 contact-closures may be connected to the Logic Inputs port of the RCU. Contact-closures may be switches, relays, or logic outputs from other devices. Each logic input may be programmed to perform a specific control function for a specific product. This programming process is performed using the "Advantage Device Control Function" section of the Logic Input Definition Screen. Each product that is linked to the RCU must have a unique device number. When creating a logic input definition, you must specify the device number of the product which that logic input will be controlling. You must also specify the model of the product (VRAM, MSP22e, etc. ). Once you have specified the model, a list of available operations appears in the "Operation" list box. The list of operations changes depending upon which model is selected. When a definition has been established for a particular logic input, an icon and device number will appear above the `LED' indicator on the Main Screen. The icon and device number indicate which device the logic input is programmed to control. [. . . ] The eighth data bit of each character (the most significant bit) should always be 0. The computer should not echo the characters it receives. The computer should not be set for either hardware (DTR) or software (XON/XOFF) flow control. The baud rate may be changed to either 2400, 19200, or 38400 bits per second by means of the software (see Setup on pg. [. . . ]