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Interfacing Information 47
Appendix B: Interfacing Information
I. INTRODUCTION
The Quatro ID Card Printer is equipped with a standard 8-bit
Centronics-type parallel data communications port. This is the
means by which the printer receives data from your computer.
No options for serial data are available. This chapter describes
the pin assignments, protocol, and signal specifications for the
parallel data input port.
II. CENTRONICS-TYPE PARALLEL INTERFACE
The Centronics-type parallel interface is the most widely used
printer interface due to its simplicity, speed, and standardization
throughout the PC industry. The printerÕs parallel interface
connector is a standard 36-pin Amp type with two metal-wire
retaining clips and is ECP (Extended Capabilities Port)
compatible. It mates with a shielded, bi-directional PC to
printer parallel cable. Try to keep the interface cable to under
6 feet if possible.
Pin assignments are as follows:
TABLE B-1: Parallel Interface Pin Assignments
14
25
13
PIN 1
36
18
PIN 1
19
WIRE DIAGRAM
DB36P DB25P
11
22
33
44
55
66
77
88
99
10 10
11 11
12 12
13 13
14 14
32 15
31 16
36 17
19 THROUGH 30 19 THROUGH 25
SHELL SHELL
Quatro/510323 v3 1/8/99 10:48 AM Page 47