Rs-232 Serial Interface - Printronix SLPA8000 User Manual

RS-232 Serial Interface

NOTE: The RS-232 serial interface circuit characteristics are compatible with
The RS-232 serial interface enables the printer to operate with bit serial
devices that are compatible with an RS-232 controller. The input serial data
transfer rate (in baud) is selectable from the printer's control panel. Baud
rates of 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 are
available.
NOTE: If you select a baud rate that is greater than 19200, you may need to
The length of the data cable from the host computer to the printer must not
exceed 50 feet (15 meters).
Table 9. RS-232 Serial Interface Connector (9 Pin) Assignments
Input Signals
Signal
Receive Data (RXD)
Clear To Send (CTS)
Data Set Ready (DSR)
Data Carrier Detect (DCD)
Received Data (RXD). Serial data stream to the printer.
Transmitted Data (TXD). Serial data stream from the printer for transmitting
status and control information to the host. Subject to protocol selection.
Request To Send (RTS). Control signal from the printer. Subject to
configuration.
Clear To Send (CTS). Status signal to the printer indicating the host is ready
to receive data/status signals from the printer.
Data Set Ready (DSR). Status signal to the printer indicating the host is in a
ready condition.
Data Carrier Detect (DCD). Status signal to the printer. The ON condition is
required for the printer to receive data.
Data Terminal Ready (DTR). Control signal from the printer. Subject to
configuration.
the Electronic Industry Association Specifications EIA
EIA-422-B.
increase the Buffer Size in K parameter from the default (1 Kbyte) to
improve performance.
Output Signals
Pin Signal
2 Transmit Status & Control
Data (TXD)
8 Request To Send (RTS)
6 Data Terminal Ready (DTR)
1
RS-232 Serial Interface
Terminating Resistor Configurations
®
Miscellaneous
Pin Signal
3 Chassis/Signal Ground
7
4
-232-E and
Pin
5
185