458
17. EdgeBus™ expansion port
Introduction to EdgeBus
Every Metric Halo 3d motherboard includes a high-speed peripheral I/O interface; the EdgeBus slot.
A variety of digital audio expansion modules are available for the EdgeBus expansion slot. The modules
themselves are called EdgeCards™.
The current crop of EdgeCards can provide anywhere from 4 to 256 extra channels of digital I/O per card.
Naturally, if you have more than one 3d unit in your MHLink domain, any port in any EdgeCard may be
routed directly to or from any other physical or computer port available in the domain, the same as any
built-in port.
Figure 17.1: EdgeBus expansion port (2882/ULN-2 base configuration SPDIF•AES EdgeCard shown at left)
The graphic above shows the EdgeBus port of a 3d ULN-2 populated with the base configuration SPDIF •
AES EdgeCard on the left, and at the right an empty LIO-8 EdgeBus port covered with a blank panel.
EdgeCards are designed to be convenient, field-installable and bulletproof.
Detailed instructions for