TM-9-1200-215-34&P Technical Manual for M109 Automatic Fire Control System (AFCS) Download
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TM 9–1200–215–34&P 1–8 1–16. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS a. The AFCS Computer Unit (ACU) is comprised of an aluminum casting electronic housing with two handles, connector panel, hard drive, 1553 CCA, Discrete I/O CCA, Servo CCA, TCIM CCA, CPU CCA, and a Power Supply CCA. The location of these components is shown in the following illustration: LEGEND: (1) TOP PANEL COVER (2) EMI GASKET (3) CONNECTOR PANEL ASSEMBLY (4) EMI GASKET (5) HARD DISK DRIVE COVER (6) HARD DISK DRIVE (7) 1553 CCA (8) DISCRETE I/O CCA (9) SERVO CCA (10) TCIM CCA (11) CPU CCA (12) POWER SUPPLY CCA (13) BACKPLANE (14) ELECTRONIC HOUSING 7 1 2 3 4 6 5 8 9 10 11 12 13 14 NOTE Cables and fasteners to CCAs are not shown to improve clarity of the illustration.