Printronix L5020 ユーザーズマニュアル
Appendix
Interfaces
222
Printing at full-rated speed may require either an RS-422 or parallel
connection for wide format printing applications.
connection for wide format printing applications.
RS-232 Serial Interface Connector Pin Assignments
The printer provides a 25-pin DB-25S connector inside the lower
cabinet for connection of a serial interface cable. This connector is
also used for the RS-422 serial interface. Selection of the desired
interface is determined by the position of the RS-232/422 switch
located inside the lower cabinet of the printer.
cabinet for connection of a serial interface cable. This connector is
also used for the RS-422 serial interface. Selection of the desired
interface is determined by the position of the RS-232/422 switch
located inside the lower cabinet of the printer.
The following table lists the pin assignments of the RS-232
interface connector.
interface connector.
Pin
Signal
Direction
1
Chassis Ground
Not applicable
2
Transmit Data (TxD)
From printer
3
Receive Data (RxD)
To printer
4
Request To Send (RTS)
From printer
5
Clear To Send (CTS)
To printer
6
Data Set Ready (DSR)
To printer
7
Signal Ground
Not applicable
8
Carrier Detect (CD)
To printer
11, 14
Reverse Channel (RC)
From printer
20
Data Terminal Ready (DTR)
From printer