
TITLE : RP-300/310
Page -12 -
2.1.5 Serial interface connection example
Host side
Printer side
TXD ………………………………… RXD
DSR ………………………………… DTR
RXD ………………………………… TXD
DTR ………………………………… DSR
FG ………………………………… FG
SG ………………………………… SG
DETAILS:
◦ Set the handshaking so that the transmit data can be
received.
◦ Transmit data to the printer after turning on the power and
initializing the printer.
< Figure 2.1 Serial transmission bit frame >
< Figure 2.2 Line transmission with protocol >
1 Bit
7 or 8
Bit
None or
1 Bit
1 or 2
Bit