TM-9-1200-215-34&P Technical Manual for M109 Automatic Fire Control System (AFCS) Download
Page 22 of 266
TM 9–1200–215–34&P 1–10 c. The Prognostic/Diagnostic Interface Unit (PDIU) is comprised of an aluminum casting electronic housing, electrical indicator panel, DC–DC converter, EMI filter CCA, signal protection multiplexer CCA, input/output CCA, processor CCA, and 768k memory CCA. LEGEND: (1) TOP COVER (2) DC–DC CONVERTER (3) SIGNAL PROTECTION MULTIPLEXER CCA (4) INPUT/OUTPUT CCA (5) PROCESSOR CCA (6) 768K MEMORY CCA (7) BACKPLANE ASSEMBLY (8) BOTTOM COVER (9) ELECTRICAL INDICATOR PANEL (10) EMI FILTER CCA 2 1 3 4 5 6 7 8 9 10