TM 5-6675-316-14
(13) A secondary or backup supply is co-located with the primary source. It
uses the same input and output components as the primary.
k. 8K X 8-bit RAM board.
(1) The RAM memory is used for program and data storage. The board size of 8K
can be reduced in lK increments down to a lK board size. The board uses 1ow-powered
static lK X l-bit RAMs with faster memory speeds. Also, the read/write function
can be disabled, allowing two memories to share the same address. All RAMs are
organized by bits in columns and by lK increments in rows. The first lK of memory
is in row A; the second lK, in row B. Bit 1 is in column 4; bit 2, in column 5.
The lK of memory and bit designations are etched on the board.
2-48
