DL351 is a 7U 19" modular configurable rack mount I/O unit with provision for 8 DL4 Series interface cards, which can provide up to 64 audio inputs and 64 audio outputs. With four AES50 network ports providing N+1 redundancy, plus an Ethernet control port and a Midi Interface (In, Out, Thru), the DL351 is the ideal partner to all Midas Pro Series digital consoles, enabling a digital snake connection from Front of House to stage.
Modular Expansion Cards
DL351 can accept up to 8 of these cards in any combination. The DLIO-BP blanking plate is also available as an accessory should not all card positions be populated.
Digital Audio Networking
SuperMAC (AES50-Compliant) digital audio networking technology from Klark Teknik simultaneously provides high channel counts, ultra low and deterministic latencies, sample-synchronous and phase-aligned networked clock distribution, error detection and correction, network redundancy, and ease of deployment and use – to meet the demanding requirements of live concert touring.
DL351 is compatible with all Midas Pro Series digital consoles and audio system engines, as well as with any other 96 kHz-enabled AES50-equipped devices.
Remote Console or Front Panel Control
All configuration settings for DL351 can be set either remotely from the mixing console, or directly via the intuitive and easy to understand front panel. DL351 features a front panel LCD display with intuitive menu navigation for all configuration options with LED status indicators, which provide clear feedback of operational status over wide viewing angles and distances. Clear indication is provided showing power supply output rail condition and AES50 and Ethernet network connection status and activity.
External Control Ports
DL351 features two General Purpose (GPIO) 25-pin D-type connectors for external device control, one for inputs and the other for outputs, which are opto-isolated to ensure galvanic isolation and avoid ground loops. External trigger events received via the input port are relayed to the Pro Series control centre, and external devices can in turn be triggered from the output port in response to scene change messages inserted in the console automation show file running in the control centre. An industry-standard Midi interface (In, Out, Thru) is also provided to send and receive Midi messages which can also be used in conjunction with the control centre’s automation system.
Built for the Road
Featuring a rugged steel 7U rackmount enclosure, the DL351 is designed for the rigours of live concert touring. Premium Neutrik connectors are used to ensure reliable network connections, night after night.
Dual Redundant Universal Switch-Mode Power Supplies
DL351 features dual-redundant power supplies, which are auto-voltage sensing for use on a worldwide basis and provide seamless switchover in the unlikely event of a loss of one power supply.
Architecture and Engineering Specifications
The interface unit shall be designed for digital audio mixing applications and be optimised for use in live performance. It shall feature a modular construction, allowing for 8 proprietary format interface cards, providing up to 64 audio inputs and 64 audio outputs and shall be capable of operating at 96 kHz sampling rate.
The interface supports a 100 Megabit Ethernet frame-based digital audio network that shall off er N+1 cable redundancy and be compliant with the Audio Engineering Society AES50-2011 standard. Four digital audio network ports and one Ethernet control port shall be provided.
The interface includes two General Purpose (GPIO) 25-pin D-type connectors for external device control, one connector for inputs and one connector for outputs, both of which shall be opto-isolated to provide galvanic isolation. An industry-standard Midi Interface (In, Out, Thru) shall also be provided.
The interface unit shall provide both front panel and remote network confi guration of operational settings and provide an alphanumeric LCD display with associated menu navigation buttons, and LED status indication of power supply output rail condition and digital audio and control network connection status and activity.
The interface includes two auto-ranging universal switch-mode power supplies with dual redundancy for use on a worldwide basis.
The interface is housed in a standard 7U 19" rackmount chassis, and shall be 483 mm wide x 416 mm deep x 310 mm high (19.0" x 16.4" x 12.2"), with nominal weight 16.9 kg (37.2 lbs). The interface unit shall be installed in a rack frame or road case capable of safely supporting its weight. Input, output, and power connections shall be made at the rear panel of the interface unit. Installers shall allow adequate space at the rear for connection and disconnection of input, output, and power connections. The power requirements shall be 100 to 240 VAC, 50 to 60 Hz.
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