User`s guide
,
Vector
ZCB
Single
Board
Co11puter
3)
Fasten
the
other
end
of
the
cable
with
the
DB-25S
connector
to
the
rear
panel
of
the
canputer
with
the
hardware
provided.
4)
Label
the
connector
liMP
Signal
Connector.
II
2.9
Spare
chips
and
patch
areas
Socket
U26
is
large
enough
for
a
14-pin
DIP. None
of
the
holes
are
connected
to
anything
on
the
board
wi
th
the
exception
of
GND
and
+5V.
There
are
a
number
of
unused
gates
on
the
ZCB
board
which
yru
may
find
useful
to
use.
3
tri-state
8097
buffers
are
available.
U35:
in-pin
12,
rut-pin
11,
controlled
by
U28,13.
U36:
in-pin
14,
rut-pin
13,
controlled
by
CDSB
u45:
in-pin
2,
rut-pin
3,
controlled
by
GND
1
three
input
74LS10
NAND
gate
u9:
in-pins
1,2,13,
rut-pin
12
1 74S04
inverter
U7:
in-pin
3,
rut-pin
4
2
74LS04
inverters
U14:
in-pin
13,
out-pin
12
U43:
in-pin
1,
rut-pin
2
3
two
input
74LSOO
NAND
gates
U17:
in-pins
10,9,
rut-pin
8
u17:
in-pins
13,12,
out-pin
11
U42:
in-pins
4,5,
rut-pin
6
1
RS-232
level
driver,
001488
U15:
in-pin
2,
rut-pin
3
1
RS-232
level
receiver,
001489
U16:
in-pin
13,
rut-pin
11,
control-pin
12
2-20
Rev.
I-B
6/11/80