Rs-232 And Rs-422 Serial Interfaces - Printronix P7010 User Manual

Chapter 5

RS-232 And RS-422 Serial Interfaces

RS-232 And RS-422 Serial Interfaces
NOTE: The RS-232 and RS-422 serial interface circuit characteristics are
The RS-232 and RS-422 serial interfaces enable 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
baud rates 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) for RS-232 or 4000 feet (1220 meters) for RS-422.
(A copper conductor, twisted-pair telephone cable with a shunt capacitance of
16 pF/foot [52.5 pF/meter] terminated in a 100 ohm resistive load must be
used for the RS-422.)
RS-232
Table 12. Standard 500, 1000, 1500 lpm Models
RS-232 Serial Interface Connector Pin Assignments
Input Signals
Signal Pin
Receive Data (RXD) 3
Clear To Send (CTS) 5
Data Set Ready (DSR) 6
Data Carrier Detect (DCD) 8
Table 13. RS-232 Serial Interface Connector Pin Assignments
Input Signals
Signal Pin
Receive Data (RXD) 2
Clear To Send (CTS) 8
Data Set Ready (DSR) 6
Data Carrier Detect (DCD) 1
244
compatible with the Electronic Industry Association Specifications
EIA-232-E and EIA-422-B.
use RS-422 to prevent data loss.
Output Signals
Signal
Transmit Status & Control
Data (TXD)
Request To Send (RTS)
Data Terminal Ready (DTR)
Output Signals
Signal
Transmit Status & Control
Data (TXD)
Request To Send (RTS)
Data Terminal Ready (DTR)
Miscellaneous
Pin Signal
2 Chassis Ground
4 Signal Ground
20
Miscellaneous
Pin Signal
3 Chassis/Signal Ground
7
4
Pin
1
7
Pin
5