Appendix C - AV Equipment Cut Sheets

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Digi-Loop™ Large-area dual-output loop amplifier with Dante™ input DL210 NET D 2.0 Rear diagram USB jack Dante jack (”D” model only) Ethernet jack Mic/Line level inputs Speaker level input Line level inputs Line level outputs Loop outputs Power Switch Line cord connection Model & Serial numbers RS-232 & Fault Relay jack Fuse access Exhaust Fan A599 Front LCD - Menu (GUI) Display Menu (GUI) display control knob Headphone jack Note: the DL210 NET 2.0 does not have a Dante jack. Architectural / Engineering Specifications The loop amplifier shall have a RJ-45 ethernet jack to provide configuration capability over an ethernet (10 base T) network. It shall have an RJ-45 Dante ethernet jack. It shall have a USB jack to provide firmware upgrades to the amplifier using a computer. It shall have two MIC/LINE LEVEL 3-pole terminal block inputs, balanced or single-ended, with 48 V phantom supply in microphone mode. It shall have a configurable PRIORITY INPUT function. It shall have a 70-100 V, 2-pole terminal block input, to provide a high/speaker-level input connection for use with distributed speaker systems. It shall have an internal frequency generator for calibration providing 100 Hz, 500 Hz, 1 kHz, 2.5 kHz and 5 kHz tones, and Pink Noise. It shall have two LINE OUTPUTS, balanced or single-ended to provide loop-through connections for line level signals going to other equipment such as recording devices or additional loop amplifiers. It shall have a 1/4” Headphone jack on front panel for monitoring of inputs or outputs, selectable in the menu. It shall have a loop fault relay output (NC,NO,C) for triggering external systems when a loop fault occurs. This shall be integrated into the RS-232 DB-9 connector. It shall provide an output drive voltage of up to 33.3 Vrms, 47.6 Vpk per output. It shall provide an output current of up to 12 Arms, 17 Apk per output. It shall have a front control interface consisting of a backlit LCD screen and control button/dial. It shall have adjustable settings for input mixing, parametric equalization, compression, frequency-shaping, metal loss compensation, high and low-pass filters, AGC and audio delay. It shall display warnings for LOOP FAULT (open loop, shorted loop or out of impedance range), OVER TEMP, and CLIPPING. It shall have protection against loop faults and overheating (amplifier shuts down). It shall be controllable by devices such as a Windows Surface Tablet, or PC, with PC App software installed. It shall be compatible with either US or international power systems with the appropriate power cord. Performance shall meet IEC 60118-4 system performance requirements when loop system is designed and installed correctly. Specifications/testing shall conform to IEC 62489-1 benchmark testing standards The loop amplifier shall be the Williams Sound model DL210 NET 2.0. The loop amplifier with the Dante input shall be the Williams Sound model DL210 NET D 2.0.