Specifications
J3 and J4:
Connectors J3 and J4 are latching 10-pin (dual 5-pin)
male transition connectors with 0.1 inch lead spacing.
J3 is used for the counter/timer inputs and outputs, and
J4 is used for the frontplane interrupt inputs. The
mating connector is a T&B Ansley #622-1001M or
equivalent. The pin assignments are shown in Tables
B-7 (page B-16) and B-8 (page B-17).
J5:
Connector J5 is a two-pin vertical header used to
connect to an AC wall transformer or other AC source
for power-fail detection.
See page 3-19 for more
information.
The pin assignments are shown in
Table B-9 on page B-17.
J6:
Connector J6 is a 20-pin (dual 10-pin) vertical header
used to connect to the on-board printer port.
See
Chapter 9 for more information. The pin assignments
are shown in Table B-10 on page B-18.
J7:
Connector J7 is a two-pin socket connector used for
8087 operation. See Chapter 7 for more information.
The pin assignments are shown in Table B-11 on
page B-19.
B-10