As per my aobve comment admin guide is available in DOC6153, some additional documents for the KBase are available in below link
https://www-secure.symantec.com/connect/articles/knowledgebase-articles-symantec-endpoint-protection-121-ru2
https://www-secure.symantec.com/connect/articles/latest-symantec-endpoint-protection-releases-sep-121-ru2-and-sep-110-ru7-mp3