TECHNICAL SPECIFICATIONS
Module Compatibility: 500 VPR Alliance and GDIY 51X Alliance modules
Extension Interface: In-rack PCB adapter plus 100 cm preassembled 14-pin extension ribbon cable
Edge Connectors: 18-position EDAC connectors (51X compliant)
Test Points: 4 mm Hirschmann banana jacks for all power rails
Supported Voltage Rails: ± 16 V,+ 48 V, ± 24 V
Audio I/O: In-rack signal pass-through plus external XLR input and output sockets
Power Input Options:
Direct power tapping from rack slot via in-rack PCB and 100 cm cable
NC5 MAV 5-pin XLR input for external VPR power supply (16 V and 48 V)
4 mm banana jacks for bench lab power supplies
7-pin Phoenix terminal strip for multi-board power distribution
DETAILED FEATURES
Direct In-Rack Tapping: Test and align modules outside the rack while taking power and audio directly from your rack slot via the 100 cm extension cable
1 Meter Cable Reach: Extended 100 cm cable length gives you ample room to work comfortably on your workbench next to the rack frame
Multi-Rail Voltage Probing: Integrated 4 mm Hirschmann banana sockets allow fast voltage measurements with standard multimeter leads
Complete Power Flexibility: Power the module directly from the host rack, an external 5-pin XLR VPR supply, or a lab benchtop power supply
Modular Expandability: Connect additional boards using the 7-pin Phoenix terminal block to build custom multi-slot testing stations
CASE PARTS OPTION AND 3D PRINTING
Included in Case Parts Kit: Threaded M3 inserts, M3 assembly screws, and precision front/rear panels
Case Frame Requirement: The external box housing is a 3D-printed enclosure. You can download the official STL print files directly from printables.com to print the chassis yourself.
WHAT'S INCLUDED IN THE KIT
Main EXT 51X test PCB and in-rack interface PCB
Preassembled 100 cm 14-pin extension cable
18-pin EDAC edge connector, Neutrik XLR sockets, and 4 mm Hirschmann banana jacks
7-pin Phoenix terminal strip, power socket, and circuit hardware
Case hardware (if selected): M3 inserts, M3 screws, front and rear panels
Note: Requires soldering. Assembly instructions and 3D print links available in our Build Manuals section.

