Printronix L1524 - Manual (Page 131)

B–15 Host I/O Interfaces
Diagnostic Port
This interface is used for connection with a computer port to run diagnostic tests
using software driven diagnostics. The connections, with a six pin RJ-11
connector, are made as shown in Figure B–1 and Table B–7.
1 6
Figure B–1. Diagnostic Port
Table B–7. Diagnostic Port Interface Pin Assignments
Pin Signal Direction
1 No Connection
2 RX To Printer
3 GND
4 TX From Printer
5 Ground
6 No Connection