If you do not include the line-protocol statement or if you explicitly configure the default EIA-530 line protocol, the following statements are invalid:
- dce-options | dte-options {
- control-signal (assert | de-assert | normal);
- indication (ignore | normal | require);
- }
- control-polarity (negative | positive);
- indication-polarity (negative | positive);
You can include the line-protocol statement at the following hierarchy levels: