(
(
(
I/O
Cable Driver Card
The
I/O
cable driver card (A1A2) supplies line receivers
and line drivers
for
the various attached
I/O
devices.
The device address bus and the bus out bits are
repowered and sent
to
all external devices. The bus
in
bits from these external devices are received,
repowered, and sent
to
the
F2
card. The control and
clock lines
to
the external devices are also repowered.
The interrupt request line is received and repowered by
the cable driver card while the machine check line
merely passes through the
F2
card
to
the H2 card.
Controller 4-27
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