Centronics Parallel Interface - Intermec EasyCoder PD4 Service Manual

Chapter 13—Interfaces

13.3 Centronics Parallel Interface

Description
88
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
1 /Strobe
2-9 Data 0-7
10 /Acknowledge
11 Busy
12 /Paper empty
13 /Select
14-16 Not connected
17 Chassis ground
18 External +5 VDC
19-30 Signal ground
31 Not connected
32 /ERROR
33 Signal ground
34-36 Not connected
Transmitter Comment
host
host
printer
printer
printer
printer
Max 500mA, permanently enabled
printer
Intermec EasyCoder PD4—Service Manual