Setting the security features
IBM Z Workload Scheduler provides a secure, authenticated, and encrypted connection mechanism for communicating across the network. This mechanism is based on the Secure Sockets Layer (SSL) protocol.
By default, the IBM Z Workload Scheduler Agent is installed with the SSL protocol enabled. According to this default, in the HTTPOPTS statement you must set the connection security for end-to-end communication to enable SSL.
According to the certificates that you are using (USS or SAF) to enable the SSL communication
see the relevant section: