If you can provide a short excerpt or describe the context (e.g., "I saw this in a system log: ldk pcadmin failed"), I can give you a precise explanation. Otherwise, here's a general guess:
: Access the system using the default administrator credentials (often found in the Programming Manual digistar.com.br Resource Links for Administrators : Detailed technical instructions are available in the PCAdminPro User Guide ipLDK-60 Quick Installation Guide : For specific Program (PGM) codes, refer to the LDK System Admin Programming Manual configuring auto-attendant LDK PCAdminPro - YUMPU ldk pcadmin