Heathkit H9 - HEATHKIT COMPUTER SYSTEM INTERFACE STANDARDS

Paselo
@
HEATHKIT
COMPUTER
SYSTEM
INTERFACE
STANDARDS
The
following
interface
configuration
has
been
de-
signated
as the
Heathkit
Computer
System Interface
Standard.
Use these
standards
when
you
interface
the
H9 Video
Terminal
with
the
H8 Digital
Computer.
Both
the Video
Terminal
and
the Digital
Computer
must be
wired
to operate
in the following
standard
format:
Data
Rate
Signal Level
Word
Length
Parity
600 Baud
EIA
or
RS-232C
8 Bits
None
To
do this:
1.. Examine
the
I/O
circuit board in
the H9
Video Terminal
to make sure it
is
wired
as
shown in Pictorial 2-1.
2.
Examine
the Serial I/O
circuit board in the
HB Digital
Computer to make
sure
it is
wired
as shown in Pictorial 2-2.
3.
Examine the interconnecting
cable
(be-
tween the H9
and the HB) to make
sure
it
is
wired
as shown in Pictorial 2-3
(Illustration
Booklet, Page 3).
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READER
CONTROL
DISABLE
600 BAUD
r/o
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P60l
-6
P601-7
P60l
-8
P60l
-9
P60l
-10
P60l-lt
P60t-12
P60t
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o
o
o
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o
o
o
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NO PARITY
PICTORIAL
2.1