Set parity, Set data bits, Set the character length, using the – Nortel Networks CTA 500dm User Manual
Page 55: Using the

AT commands 55
P0873832 Issue 05
CTA 500
dm On Line Guide
Result Codes
OK Appears when the value is supported.
ERROR Appears when the selected value is not recognized or is not
supported.
Set Parity
The Set Parity Command
&P3=value
sets the parity value of the interface between the CTA 500dm and the
attached computer. The following table shows the supported values.
Result Codes
OK Appears when the value is supported.
ERROR Appears when the selected value is not recognized or is not
supported.Set Data Bits
Set Data Bits
&P4=value
The Set Data Bits Command sets the number of data bits on the
interface between the CTA 500dm and the attached computer. The
values 7 and 8 are permitted. The default value is 8 data bits.
Result Codes
OK Appears when the value is supported.
ERROR Appears the selected value is not recognized or is not
supported.
Value
Use
0
none (default)
1
odd
2
even