LBB 4404/00 Cobranet Interface

DCN Central Control Equipment-Next Generation
CobraNetTM, developed by Peak Audio, is a network protocol for real-time uncompressed digital audio distribution over industry standard 100Base-T Ethernet networks.

Features and Benefits

  • Four CobraNetTM audio inputs
  • Four CobraNetTM audio outputs
  • Eight supervised control inputs and five control outputs
  • Redundant Praesideo network connection
  • Redundant CobraNetTM network connection
Overview
Technical Specification
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DCN Central Control Equipment-Next Generation

LBB 4404/00 Cobranet Interface

CobraNetTM, developed by Peak Audio, is a network protocol for real-time uncompressed digital audio distribution over industry standard 100Base-T Ethernet networks. Typical applications are room coupling and audio distribution over long distances

CobraNetTM audio channels can be configured as inputs to a Praesideo system, where they can be routed permanently or conditionally to any of the zones or audio outputs. The routing conditions are configured using the configuration software. Calls and background music (BGM) sources can be routed to CobraNetTM channels. Digital audio data is directly converted between an audio system and CobraNetTM, with no other audio processing than sample rate conversion. Control inputs and outputs are provided for external interfacing. The equipment can be used free-standing (tabletop) or in a 19” rack.

CobraNetTM is a registered trademark of Peak Audio, a Division of Cirrus Logic, Inc.

Functions

The Praesideo CobraNetTM Interface can simultaneously interface up to four digital audio channels from CobraNetTM into an audio system and up to four audio channels from an audio system into a

CobraNetTM network. This includes converting between the 44.1 kHz sample rate used by Praesideo, and the 48 kHz sample rate that CobraNetTM uses, as well as conserving volume levels. It can also route audio channels between itself and other CobraNetTM Interfaces, in the same or in other audio system networks, or to third party CobraNetTM units. Only audio channels are routed via the interface, not control data. This means that if units are used to link multiple systems, a PC master must always access the network controllers through their open interfaces for control purposes.

The eight control inputs are freely programmable for system actions, and priorities can be assigned to these inputs. Five control outputs are freely programmable for faults and call-related actions. Control inputs can also be programmed for momentary or toggle operation using the configuration software. Each control input has the ability to monitor the attached line for open and short-circuits.

The 2 x 16-character display and the rotary control enable local status enquiries. The display shows the VU-meter reading when the audio monitoring mode is active. Audio can be monitored by headphone.

Technical Specifications

Electrical

Supply voltage

24 – 48 Vdc

Power consumption

10.5 W

Frequency response

30 Hz -20 kHz

THD at nominal level

< 0.5 %

CobraNet

Physical layer

Ethernet

Channels

4 in / 4 out per device.
Max 64 on CobraNet

Compliance

IEEE 802.3

Audio transport

16-, 20-, 24-bit

Sample rate

48 kHz

Latency

5.33 ms

Mechanical

Mouting

Free-standing or mounted in a 19"rack

Dimensions
(H x W x D)

88 x 483 x 350 mm 
(3,5 x 19,0 x 13,8 in)
92 x 440 x 350 mm 
(3,6 x 17,3 x 13,8 in)

Weight

7 kg (15,4 lb)

Color

Charcoal (PH 10736) with silver

Ordering Information

LBB 4404/00 Cobranet Interface

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