Xerox 4520 User Manual page 104

I n t e r f a c e M e n u
Figure 3.13 Serial Menu options showing factory settings (continued)
Option
DTR Polarity
Data Bits
Parity
Stop Bits
3-50 4 5 2 0 / 4 5 2 0 m p U s e r ' s G u i d e
Setting
High*
Low
7
8*
None*
Even
Odd
2
1.5
1*
Description
Serial port's DTR (Data Terminal Ready) signal sent
from the printer to notify the host computer that it is
ready to receive data.
High is standard for most computers; it uses true logic
(+5 V).
Low is typically used on nonstandard equipment; it
uses inverted logic (0 V).
Number of data bits in a character.
The Data Bits setting must match the
host computer data bits setting.
Note
How the parity bit is used in error checking.
The parity bit may be checked against the received
character by means of an Even or Odd error checking
mechanism.
The Parity setting must match the host
computer parity setting.
Note
Number of stop bits in each character. (Stop bits
signal the end of a character.)
The Stop Bits setting must match the
host computer stop bits setting.
Note