Parallel Interface - Tally Dascom DT-330 User Manual

Tally Dascom DT-330
PIN 8~19
PIN 20
PIN 21~25
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
1 H
2 H
3 H
4 H
5 H
6 H
7 H
8 H
9 H
10 P
11 P
12 P
13
－
14
－
Unconnected
DTR
Unconnected
Description
Strobe Signal; Data latch pulse, latch the data to
the printer at the rising edge of the negative
pulse.
Data 0 (The lowest bit)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (The highest bit)
ACK Signal; Printer response signal, indicates that
the printer has received a Data byte.
Busy Signal; The printer is busy; High level
indicates that the printer can't receive data.
PE Signal; Paper end signal; High level indicates
that the printer is out of paper.
Unconnected
Unconnected
44
User Guide V1.0