The VO-4e is an enhanced networked audio output expansion device allowing the user to add four line-level and CobraNet output channels to a Vocia system. The VO-4e can be configured for channel-to-channel or device-to-device failover and uses comprehensive fixed-chain digital signal processing within the device, including volume control, ducking, equalization, compressor/limiter, speaker crossover, delay, and output gain. Emergency messages for life safety systems are stored in non-volatile memory. Two RJ45 connectors on the rear panel of the device provide redundant connectivity to process control data, audio and power over a single Ethernet cable. In addition to this the VO-4e also has dual inputs for accepting power from an auxiliary supply. The per-channel paging relay provides a contact closure when paging is active on an associated channel.
CobraNet audio output
Channel-to-channel and device-to-device failover
Local non-volatile storage of Emergency Messages
Dual PoE capable with alternate powering from
auxiliary 24V DC supply (dual inputs)
LED status and fault indication
Chassis Fault, Activity and Status
PoE Power
Aux Power
Output Channel Amp Fault, Activity
and Signal Present
Four Page Active Relays, Control Inputs and
Control Outputs
Speaker line monitoring and ambient noise
compensation using ELD-1 and ANC-1
Software-configurable signal processing including
volume control, filters, compressor/limiting, delay,
speaker equalization, and output level
CobraNet audio/control with dynamic use of
available bundles over single Ethernet cable