# Dataproducts M/50 Parallel

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50 PIN M/50 MALE at ???.
50 PIN M/50 FEMALE at ???.

Pin | Return | Dir | Description | Active State
--- | --- | --- | --- | ---
CC | EE |  | Ready | High
Y | AA |  | On Line | High
E | C |  | Demand | High
j | m |  | Data Strobe | High
B | D |  | Data 1 | n/a
F | J |  | Data 2 | n/a
L | N |  | Data 3 | n/a
R | T |  | Data 4 | n/a
V | X |  | Data 5 | n/a
Z | b |  | Data 6 | n/a
n | k |  | Data 7 | n/a
u | w |  | Data 8 | n/a
z | BB |  | Parity | n/a
d | f |  | Ident 0 | n/a
a | c |  | Ident 1 | n/a
v | x |  | Interface Verify | Low
HH | K |  | +5 VDC (Test) | High
r | t |  | Parity Error | High
M | P |  | Bottom of Form | High
S | U |  | Top of Form | High
p | s |  | Paper Instruction | High
A | H |  | Buffer Clear | High
W | Y |  | Paper Moving | High
FF | DD |  | Paper Moving | High
e | h |  | Not VFU | High

Note: Direction is Host (Computer) relative Peripheral (Printer).
Note: Return is Ground signal for Unbalanced and the Negative Signal for Balanced.

Contributor: Joakim Ögren

Source:
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Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-08