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Parity
Ignore Parity
Choices are Odd, Even, Mark, Space, None, or Autoparity.
Configure the 3708 to match the parity setting of the attached device. If autoparity
is selected, the 3708 matches the parity of the downstream device, if it is odd or
even. When the None option is selected, parity is not generated by the 3708. An
8-bit character is still transmitted with the high order bit determined by the host data
stream, or by the output from the translation tables if translation is specified. When
the parity equals none option is selected, Ignore Parity should be selected on receive
data. This option tells the 3708 to ignore the parity bit on received data, although
the parity bit is still removed if 7-bit data is specified.
Choices are 1 (Yes) or 0 (No).
If this option is selected, the 3708 ignores any parity errors that occur on receive
data. The 3708 removes the parity bit (parity bit set to zero) if 7-bit data is
specified.
If Ignore Parity is configured to No, the 3708 replaces any character it receives from
the downstream device with the parity error substitution character.
Note:
This option should be used with parity option of None.
Parity Error Substitution Character
Choices are X
I
00
I
-
X
I
FF
I •
IfIgnore Parity is configured to No and a character is received with a parity error,
the 3708 transmits this character to the host in place of a bad character. The Parity
Error Substitution Character is also used to replace characters that are received with
framing errors. Characters with framing errors are always replaced in the data
stream with the Parity Error Substitution Character. The Parity Error Substitution
Character is inserted into the data instead of the received character which has the
error. The substitution character is not translated. If the host is expecting EBCDIC
characters, the substitution character should be specified in EBCDIC.
Chapter 5. 3708 Protocol Enveloping Mode
5-3
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