Dascom DT-230 User Guide - Manual (Page 39)

Tally Dascom DT-210/230
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5.2.3 Serial interface
Serial interface pin assignment
Serial interface compatible with RS‐232 standard, with 25 pin (D hole type) socket.
PIN No. Description
PIN 1 Frame Ground
PIN 2 TXD
PIN 3 RXD
PIN 4 RTS
PIN 5 Unconnected
PIN 6 DSR
PIN 7 Signal Ground
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 RTS/CTS handshaking protocol.
Serial interface connector diagram
5.2.4 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