88 Intermec EasyCoder PD4—Service Manual
Chapter 13—Interfaces
13.3 Centronics Parallel Interface
Description
The Centronics parallel interface is essentially a one-way protocol for short
distances. There is no setup for the parallel interface.
Handshake: DSTB connects to the printer, BUSY connects to the
host
Interface cable: Parallel cable compatible to IBM PC
One line contains +5 VDC, max 500 mA, permanently enabled.
Pinout Description
Pin Function Transmitter Comment
1 /Strobe host
2-9 Data 0-7 host
10 /Acknowledge printer
11 Busy printer
12 /Paper empty printer
13 /Select printer
14-16 Not connected
17 Chassis ground
18 External +5 VDC Max 500mA, permanently enabled
19-30 Signal ground
31 Not connected
32 /ERROR printer
33 Signal ground
34-36 Not connected
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