Printronix P8000 Series Cartridge Ribbon Printer - Manual (Page 245)

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RS-232 Serial Interface
NOTE: The RS-232 serial interface circuit characteristics are compatible with
the Electronic Industry Association Specifications EIA-232-E and
EIA-422-B.
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 baud
rates are available.
The length of the data cable from the host computer to the printer must not
exceed 50 feet (15 meters) for RS-232.
Table 15. Standard 500, 1000, 1500, and 2000 lpm Models
RS-232 Serial Interface Connector Pin Assignments
Input Signals Output Signals Miscellaneous
Signal Pin Signal Pin Signal Pin
Receive Data (RD) 3 Transmit Status & Control
Data (TD) 2 Chassis Ground 1
Clear To Send (CTS) 5 Request To Send (RTS) 4 Signal Ground 7
Data Set Ready (DSR) 6 Data Terminal Ready (DTR) 20
Data Carrier Detect (DCD) 8
Table 16. RS-232 Serial Interface Connector Pin Assignments
Input Signals Output Signals Miscellaneous
Signal Pin Signal Pin Signal Pin
Receive Data (RD) 2 Transmit Status & Control
Data (TD) 3 Chassis/Signal Ground 5
Clear To Send (CTS) 8 Request To Send (RTS) 7
Data Set Ready (DSR) 6 Data Terminal Ready (DTR) 4
Data Carrier Detect (DCD) 1