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Model 562A
1-1. DESCRIPTION.
SECTION I
GENERAL DESCRIPTION
Section I
The Hewlett-Packard Model 562A Digital Recorder is a transistorized electro-
IT!echanical device providing a printed record of digital inforrnation.
Parallel
data entry and low-inertia moving parts allow printing rates as high as 5 lines
per second, each line containing up to 11 digits; 12 digit capacity is available
on special order.
Throughout this nlanual the Model 562A will be referred to as the recorder.
1-2. DATA ENTRY.
Standard input for the recorder is parallel-entry 4-line BCD code, either 1224
or 1248.
Input to the recorder is through rear-l1'.lounted connectors.
Internal
connectors route the inforn1ation to any desired sequence of columns.
Each
column has binary storage for one decimal nunlber.
When a print COITlmand is supplied, each storage unit assumes the condition of
the decade counting unit (or other driving source) connected to it.
The data
transfer takes place in approximately 2 milliseconds, after which tinle the
d riving source is free to gather more infornlation.
1-3 . STANDARD INSTRUMENT.
Each storage unit is mounted on a plug-in board (column board) with a de-coding
matrix.
The nlatrix converts the stored data into positioning inforIT!ation for
the print wheels.
The recorder is supplied to translate 1224 BCD codes, but
other 4-line codes are accoIYlmodated by substituting plug-in boards.
Unless
otherwise specified, the recorder is supplied from the factory with the following:
a.
Six +1224 coluIYln boards.
b. Printer nlechanism,
11
print wheels and associated components, five
prints/second with 60 cps power line frequency.
c.
One input connector at rear of recorder JI01.
d.
One input cable.
e.
One control board.
f.
One power supply board.
01081-1
1-1
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