SOYAL Enterprise E Series Controller is built-in two DI input for Exit, two DO output for Door relay, so E Series controller support to connect one WG reader to for dual door control or dual direction access control; so when using E controller as single door access control mode, the option of Share Door Relay should be enable; when using E controller as dual door access control mode, the option of Share Door Relay should be disable. The option can be set up on 701Server and the default setting is disabled.