Oki MICROLINE ML521 Reference Manual

Appendix A: Interfacing134
Serial Interface
See your Printer Handbook for serial menu settings
Note: The serial cable should be no longer than 50 ft. (15.25m). The cable must be shielded in
order to comply with FCC requirements.
Table 103: Pin Assignments for Serial Interface Signals
Pin Signal Symbol Direction
1 Protective Ground PG –
2 Transmitted Data TD From Printer
3 Received Data RD To Printer
4 Request to Send TRS From Printer
5 Not used – –
6 Data Set Ready DSR To Printer
7 Signal Ground SG –
8–10 Not used – –
11 Supervisory Send Data SSD From Printer
12–19 Not used – –
20 Data Terminal Ready DTR From Printer
21–25 Not used – –

Oki MICROLINE ML521 Specifications

General

Brand	Oki
Model	MICROLINE ML521
Category	Printer
Language	English