Specifications
CONNECTORS
The ZT 8809A has nine connectors to interface to the I/O cables, the
STD bus, the STD 32 bus, and application-specific devices. The
board has four right angle frontplane connectors (J1 through J4) and
two vertical mount frontplane connectors (J5 and J6). A vertical
mount, two-pin socket connector (J7) is used for 8087 operation. The
connectors are described below.
Their locations are shown in
Figures B-3 (page B-11) and B-4 (page B-12).
P:
The P connector is a 56-pin (dual 28-pin) printed circuit
board edge connector with fingers on 0.125 inch
centers.
The
mating
connector
is
a
Viking
3VH28/1CNK5 or equivalent for the solder tail, or a
Viking 3VH28/1CND5 or equivalent for a three-level
wire wrap. The pin assignments are shown in Table B-1
on page B-4.
E:
The E connector extends the P connector to interface
the ZT 8809A to the STD 32 bus. It combines with the
P connector to make a 114-pin (dual 57-pin) card-edge
connector with fingers on 0.062 inch centers. The
mating connector is a Viking S3VT68/5DP12 or
equivalent
for
the
solder
tail,
or
a
Viking
S3VT68/5DE12 for the card extender version. The pin
assignments are shown in Table B-2on page B-5.
J1 and J2:
Connectors J1 and J2 are latching 14-pin (dual 7-pin)
male transition connectors with 0.1 inch lead spacing.
These are used for the two serial ports 1 and 2,
respectively. The mating connector is a T&B Ansley
#622-1401M or equivalent. The pin assignments for J1
and J2 are shown in Tables B-4 through B-6, beginning
on page B-13.
B-9
