Dataproducts M/50 Parallel
Pinout
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 |
Notes:
- Direction is Host (Computer) relative Peripheral (Printer).
- Return is Ground signal for Unbalanced and the Negative Signal for Balanced.