Meridian America Link/Customer Controlled Routing manual

66Chapter 4: Meridian Link/CCR hardware

MVME333-2 X.25 communication controller (XCC) card

The MVME333-2 X.25 communication controller (XCC) card occupies the second card slot in the front of the Application Module. This card supports the synchronous data links to the Meridian 1. The XCC card contains the following:

¥an MC68010 microprocessor

¥an MC68450 DMA controller

¥512 kbytes RAM

¥up to 128 kbytes of ROM

There is a single red LED (Fail indicator) on the faceplate, as illustrated in Figure 18. The LED lights when a hardware or LAPB/X.25 communication software error occurs.

553-3202-210 Standard October 1998