Printronix P5000 Series User Manual page 42

Chapter 3
Mapping Examples
Table 6: PPI-2 24-Pin Connector (continued)
10 Output 3 - Error
11 Output 4 – Printing
12 Output 5 – Power
On
13 Output 6
14 n.c.
15 Input Common
16 n.c.
17 n.c.
18 n.c.
19 n.c.
20 n.c.
21 Output Common
22 n.c.
23 n.c.
24 n.c.
Table 6 indicates that 6 inputs and 7 outputs are required to generate the
same effects as the PPI-2 emulated printer equipped with an applicator
interface. All input and output is through opto-couplers, and absolute galvanic
isolation is used.
Input and output circuits are shown in Figure 39.
42
Active Low, indicates any printer error
Active Low, pulse (50 ms) at start of printing
Active Low, indicates printer power-on
n.u
Common Anode connection, opto-coupler input leds
Common Emitter connection, opto-coupler output transistors
Common anodes to
external supply
Input,
Active Low
Figure 39. PPI-2 Input and Output Circuits
Output,
Active Low
Common emitters to
external ground