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• Four bidirectional audio channels
• Monophonic audio transmission
• DIP switch for audio channel configuration as inputs or outputs
• Multiple input/output audio channel configurations
• 2 configurable RS232/RS485 ports
• Serial communication supporting the MODBUS protocol
• Fault tolerant, redundant fiber optic ring topology
• Single mode and multi-mode optical fiber options • Automatic baud rate detection
• Multi-color LED indicators
• DIN rail mounting