2.12.6.1 ANSI 5-bit to ANSI 8-bit SLS Conversion

The ANSI 5-bit to ANSI 8-bit SLS Conversion enables a user to perform 5-bit ANSI conversion to 8-bit ANSI. If this conversion option is configured, then the SLS is converted from 5-bit to 8-bit ANSI. The conversion is performed during routing, between linkset and link selection. SLS rotation follows the link selection.

The messages, which satisfy the following conditions can only be converted from 5-bit to 8-bit SLS:

• The incoming and outgoing linksets are SS7 ANSI.

• The incoming linkset has ASLS8=NO .

• The value of the slsci parameter is YES and the slscnv parameter is PERLs or ON for the outgoing linkset.

• The 3 most significant bits of the SLS are 000.

  If the above conditions are fulfilled, then only the new SLS value is calculated as per the following figure:

  Figure 2-12 ANSI 5-bit to ANSI 8-bit SLS Conversion