Printronix MVP Series - Manual (Page 180)

Interfaces 8–12
Option 63 — Data Lines and Response Line Logic Polarity with
Parallel Interface
MVP/L150
Lines in Option 63 are normally high active (positive true) but they may be
configured to low active (negative true) signals; Selected/Online, PE, and
Data Request are affected. Acknowledge, used in the Centronics interface,
remains low active.
Option
Number
Display Configuration
Description
.0 63.0 Enable high active data and responsive lines logic polarity (default).
.1 63.1 Enable low active data and responsive lines logic polarity.
NOTE: Option 64 is reserved for future use.
150B/L150B
Option
Number
Display Configuration
Description
.0 63.0 Enable high active data and responsive lines logic polarity (default).
.1 63.1 Enable low active data and responsive lines logic polarity.