User's Guide

Tally Dascom DT-330 User Guide V1.0
44
PIN 8~19
Unconnected
PIN 20
DTR
PIN 21~25
Unconnected
User can view the setting of interface via printing configuration sample.
The default setting of serial interface is as follow, 38400 bps (baud rates), 8 bit (data
bit), 1 bit (stop bit), no parity, support DTR/DSR handshaking protocol.
Serial interface connector diagram
6.6 Parallel Interface
Parallel interface pin assignment
Parallel interface with 36 pin CENTRONICS socket.
Pin No.
Signal From
Description
1
H
Strobe Signal; Data latch pulse, latch the data to
the printer at the rising edge of the negative
pulse.
2
H
Data 0 (The lowest bit)
3
H
Data 1
4
H
Data 2
5
H
Data 3
6
H
Data 4
7
H
Data 5
8
H
Data 6
9
H
Data 7 (The highest bit)
10
P
ACK Signal; Printer response signal, indicates that
the printer has received a Data byte.
11
P
Busy Signal; The printer is busy; High level
indicates that the printer can’t receive data.
12
P
PE Signal; Paper end signal; High level indicates
that the printer is out of paper.
13
－
Unconnected
14
－
Unconnected