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, equalisation, compressor/limiter, speaker crossover, delay, and output gain. Emergency messages for life safety systems are stored in non-volatile memory. Two RJ-45 connectors on the rear panel of the device provide redundant connectivity to process control data, audio, and power over a single Ethernet cable. 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.

Product Features

• 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
• Dual CobraNet ports for redundancy
• Rack mountable (1RU)
• Rotary switches for device identification
• IP30 Compliant
• CE marked and RoHS compliant
• Covered by Biamp Systems’ five-year warranty

Product Specifications

General

• Network Connection: Dual RJ45 with shielded Ethernet (CAT5, CAT5e, CAT6, or CAT 7)
• Network Audio: 20-bits, 48kHz, 5-1/3 ms (fixed)
• Memory: 5.625 MB
• Nominal Output Level: -10dBu, 0dBu, +4dBu (selectable)
• Maximum Output Level: +22dBu
• Maximum Output Load: 2kΩ
• Dynamic Range: >100dB
• Frequency Response (20Hz-20kHz): ± 1dB
• THD+N (20Hz-10kHz): <0.05%
• Power:
  • PoE:
    • 802.3af Class 3
    • 802.3at Type 1 Class 3
  • Aux Voltage Nominal: 24V DC; <100mV Ripple (Max 15W)
• Fault & Control Input Ports:
  • Assert: Voltage free contact to ground
  • Un-assert: Open Circuit
  • Input Impedance: 100kΩ
  • Max. short circuit current: 1mA
• Page Active Relays & Control Out Relays:
  • Type: Single Form C voltage free change over contact
  • Max Operating Voltage: 125V AC, 60V DC
  • Max Switching Capacity: 37 VA
  • Min Operating Load: 10µA 10mV DC
• Environment:
  • Ambient Operating Temperature Range: 23–104° F (-8 – 42° C)
  • Humidity: 0 – 95% non-condensing
  • Altitude: 0 – 10,000 Feet (0 - 3000 Meters) MSL

Dimensions

• Height: 1.75 inches (44.5 mm)
• Width: 19 inches (483 mm)
• Depth: 10 inches (254 mm)
• Weight: 6.6 lbs. (3 kg)

Compliance

• FCC Part 15B (USA)
• CE marked (Europe)
• RCM (Australia)
• RoHS Directive (Europe)