How does Alta use the IRIG-B time sync source in Alta products for 1553 and ARINC ?

Alta has designed their interface products to utilize an industry-standard IRIG-B time source, but we do not utilize that time source as the “master” for all of our internal timing. Instead, we use our internal 50MHz clock as we normally do, but in the presence of an IRIG-B input, we latch BOTH the IRIG-B time […]