row
socket
(Pin No.)
2
TXD
printer
Export(out)
The printer’s dashboard receives
the data from the host.
3
RXD
host
Import(in)
The printer’s dashboard sends
data to the host. (When using
the ‘X-ON/X-OFF’ Handshake
Protocol
,
the printer sends
control code ‘X-ON/X-OFF’ to the
computer.)
4
CTS
printer
Export(out)
When the signal is in a state of
‘MARK’, it means that the printer
is busy and can’t receive data.
But when the signal is in a state
of ‘SPACE’, it means that the
printer is ready to receive data.
5
GND
——
——
Signal ground
1
NC
——
——
no connection
2.1.2
Baud rate select bit
SW
NO.
1200 2400 4800 9600 19200 38400 57600 115200
1
off
on
off
on
off
on
off
on
2
off
off
on
on
off
off
on
on
3
off
off
off
off
on
on
on
on
2.1.3
handshake method select bit
The handshake methods can be selected by the DIP switch SW4 in the machine. When
the machines leave factory, the location of the sw4 is ‘OFF’ (Default).
SW4
Handshake
method
Data direction
RS-232 interface signal
ON
Mark control
Data can enter
The signal line ‘4’ is in a state of
‘SPACE’
Data can’t enter
The signal line ‘4’ is in a state of ‘mark’
OFF
X-ON/X-OFF
control
Data can enter
The signal line ‘2’send out the
X-ON
code ‘11H’
Summary of Contents for RD-FH8C7
Page 41: ...B character set 1 and 2 C International standard ASCII ...
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