Control a Redback A6512 volume controller via RS-232 from your RTI system. Set precise volume levels, use presets, and manage mute — all with real-time feedback on your touchpanel.

The Redback A6512 is a commercial audio volume controller commonly used in paging, background music, and multi-zone audio installations. This driver provides full serial control with a browse menu interface for easy volume management.

FEATURES
• RS-232 serial control (9600 8N1)
• Volume range 0–79 with percentage display
• Configurable volume step size (1–10 per press)
• Volume presets: Off, Background, Low, Medium, High, Maximum
• Full level selection menu (0 to 79 in steps of 5)
• Mute with automatic volume restore
• Set default volume on processor startup (optional)
• Browse menu with navigation for touchpanel control
• Active marker shows current level in menus
• Mute/unmute events for macro automation

CONFIGURATION
• Serial Port — select from available RS-232 ports
• Set Volume On Startup — send default level on boot or let device keep its current level
• Default Volume — startup level (0–79)
• Volume Step Size — steps per Volume Up/Down press (1–10)
• Append Carriage Return — enable if device requires CR terminator

SYSTEM VARIABLES
• Volume Level — current level (0–79)
• Volume Percent — current level as percentage (0–100%)
• Is Muted — mute state
• Connected — connection status
• List Title — current browse menu title
• Browse List — navigable menu list

CONTROL FUNCTIONS
• Volume Up / Volume Down — step-based control
• Set Volume — set specific level (0–79)
• Mute / Mute On / Mute Off — toggle or direct mute control
• Volume Off / 25% / 50% / 75% / Max — quick presets
• Show Browse Menu / Select Item / Browse Back — menu navigation

EVENTS
• Connected — driver initialised
• Muted / Unmuted — mute state changes

REQUIREMENTS
• RTI XP-8 processor
• Integration Designer 11.4 or later
• Redback A6512 connected via RS-232 (9600 8N1)