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B: Interfacing
Parallel Interface
The parallel interface is standard IEEE 1284 bi-directional with a 36-pin, Amphenol
57-40360-12-D56 receptacle. It requires a Centronics-equivalent parallel cable with the
following:
• Amphenol 57-30360 or AMP 552274-1 plug (or equivalent) with 36 pins
• AMP 552073--1 (or equivalent) cover
• UL and CSA approved shielded cable, maximum 6 feet, with twisted pair conductors.
Parallel Interface Pin Assignments
Pin No. Signal Return Pin Direction
1 Data Strobe 19 To printer
2 Data Bit 1 20 To printer
3 Data Bit 2 21 To printer
4 Data Bit 3 22 To printer
5 Data Bit 4 23 To printer
6 Data Bit 5 24 To printer
7 Data Bit 6 25 To printer
8 Data Bit 7 26 To printer
9 Data Bit 8 27 To printer
10 Acknowledge 28 From printer
11 Busy 29 From printer
12 Paper End 30 From printer
13 Select No return From printer
14 Auto Feed To printer