Service unavailable in ADS connection test

Hi Experts,

I did connection in between of SAP ABAP system to Solution manager . Created RFC connection with  HTTP connection to External serv. During connection test am getting 503 error and checked with  URL  http://<hostname>:50000/AdobeDocumentServices/Config? .there is no change . Please find attached screen shot.              As per guide created users  and roles on ABAP system.

Thanks,

chandu.