Fire-Lite PS-Tools MS-9200UDLS - Manual (Page 107)

102 198 Pt Addr. Panel
PS-Tools 08/2010
Troubleshooting
Ring Count Error
Fault: The following message is displayed when you are connecting PS-Tools to the fire panel.
This happens when ring count is set to zero.
Resolution: Set the ring count to a value other than zero, to establish the connection.