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Mount, https://www.neutrik.com/en/product/nc3fah2 A Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, steel retention lug, vertical PCB mount, color coding possible, https://www.neutrik.com/en/product/nc5fav-sw A Series, 5 pole male XLR receptacle, grounding: mating connector shell and front panel, vertical PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fbh2-da B Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, horizontal PCB mount, black chrome shell, https://www.neutrik.com/en/product/nc5fbv-b B Series, 5 pole male XLR receptacle, grounding: separate ground contact connected to trigger, gate jack is normalized\nto +12 V, 10 mA -12 V ## Photos ### Photos ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use the 4 pins (http://www.qingpu-electronics.com/en/products/WQP-PJ320E-177.html PJ31060-I 6pin SMD 3.5mm stereo headphones jack. Headphones jack (http://www.china-bsun.com/Product48/1577.html headphones jack (http://www.china-bsun.com/Product48/1577.html headphones jack plug stereo 3.5mm PJ311 Headphones with microphone connector, 3.5mm, 4 pins (http://www.qingpu-electronics.com/en/products/WQP-PJ320D-72.html 3.5mm jack mic microphone phones headphones 4pins audio plug Headphones with microphone connector, 3.5mm, 4 pins module CMS SOT223 6 pins, pitch 7.5mm, size 17.3x14mm^2, drill diamater 1.3mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix MKDS-3-16-5.08 pitch 5.08mm size 55.9x11.2mm^2 drill 1.3mm pad 2.6mm terminal block Metz Connect 360425 size 9x9mm^2 drill 1.6mm pad 3.2mm terminal block Metz Connect Type205_RT04504UBLC 45Degree pitch 5mm size 55x8.1mm^2 drill 1.3mm pad 2.5mm terminal block connector Terminal Block WAGO 804-101, 45Degree (cable under 45degree), 4 pins, pitch 2.54mm, package size 69.98x30x15.64mm, https://silvertel.com/images/datasheets/Ag5810-datasheet-IEEE802_3bt-Power-over-Ethernet-4-pair-PD.pdf DCDC-Converter Silvertel Ag5405 Ag5412 Ag5424 single output DC/DC Murata MGJ2DxxxxxxSC, 19.5x9.8x12.5mm, 5.2kVDC Isolated, 1W, single output, http://www.cincon.com/upload/media/data%20sheets/Data%20Sheet%20(DC)/C%20CASE/SPEC-EC6C-V12.pdf DCDC-Converter CINCON EC5BExx 18-36VDC to dual output, http://www.cincon.com/upload/media/data%20sheets/Data%20Sheet%20(DC)/B%20CASE/SPEC-EC5BE-V24.pdf DCDC-Converter CINCON EC5BExx 18-36VDC to Dual output DCDC-Converter, CINCON, EC5BExx, 18-36VDC to Dual output DCDC-Converter, CINCON, EC6Cxx, single output.

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