Digital Equipment LGplus Series, Setup Manual

Page: 127 / 194

5–3
Dataproducts Parallel Interface
The Dataproducts parallel interface allows the printer to operate with a
50-pin Amplimite (AMP) HDH-20 data cable connector. The length of the
data cable from the host computer to the printer must not exceed 40 feet
(12 meters).
Table 5–1. Dataproducts Parallel Interface Connector Pin Assignments
(with a 50-pin AMP HDH-20 Data Cable Connector)
Input Signals Output Signals Miscellaneous
Signal Pin Signal Pin Signal Pin
DATA LINE 1 19
Return 3
READY 22
Return 6
CABLE VERIFY 45, 46
DATA LINE 2 20
Return 4
ONLINE 21
Return 5
GROUND 39
DATA LINE 3 1
Return 2
DEMAND/Data Request 23
Return 7
DATA LINE 4 41
Return 40
DATA LINE 5 34
Return 18
DATA LINE 6 43
Return 42
DATA LINE 7 36
Return 35
DATA LINE 8 28
Return 44
DATA STROBE 38
Return 37
PAPER INSTRUCTION 30
Return 14
Note: Pins not listed are not connected.