Руководство Пользователя для Compuprint 10300
Interfaces
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The following table lists the RS-232/C serial interface signals:
Signal
Name
Name
Pin
Number
Local
Connect.
Source
Remote
Connect.
Source
Description
SIGNAL
GROUND
GROUND
5
-
-
Always connected to the 0 Volts of the Power
Supply.
Supply.
TXD
3
Printer
Printer
Transmitted Data Signal (an output from
printer). A MARK condition is held during IDLE
communication state. An indeterminate state is
present when printer is powered off.
printer). A MARK condition is held during IDLE
communication state. An indeterminate state is
present when printer is powered off.
RXD
2
Host
Data Set Received data signal (an input to printer).
RTS
7
Printer
Printer
Request to Send Signal (an output from printer).
Active HIGH level signal. It is HIGH until the
printer is powered off, then an indeterminate
state is present.
Active HIGH level signal. It is HIGH until the
printer is powered off, then an indeterminate
state is present.
CTS
8
Data Set Active HIGH level signal indicates that the host
or data set is ready to receive data from the
printer.
printer.
DSR
6
Data Set Active HIGH level signal. Indicates that the host
or data set is ready to be connected to the
printer and is ready for data transfer.
printer and is ready for data transfer.
DCD
1
Data Set Active HIGH level signal. Indicates that the host
is transmitting or the data set is receiving the
Data Carrier signal.
Data Carrier signal.
2
nd
RTS
9
Printer
Functionally equivalent to the DTR signal.
DTR
4
Printer
Printer
Data Terminal Ready. Normally HIGH (ON).
Indicates that the printer is ready to initiate a
connection.
Indicates that the printer is ready to initiate a
connection.