Printer VLINE80-2 serial interface are compatible with RS 232 standard, with 25pin socket. User can
gain the setting of interface via printing configuration sample; the default setting of serial interface
is as follow, 9600bps(baud rates), 8 bit(data bit), 1 bit(stop bit), no parity, support RTS/CTS
handshaking protocol.
Figure 5.4.2 b