8 (FT + FS). SES-L Severely errored seconds - Line Seconds with BPV plus EXZ . 1544 or LOS . 1. UAS-P Unavailable seconds - Path A second of unavailability based on SES-P or AIS . 1. UAS-L Unavailable seconds - Line Seconds with LOS . 1. PRM-NE (a) Performance Report Monitoring - Near End The PRM from CPE indicates errors, and the signal received from the network at the remote is error-free. CV-L Code Violation - Line Total BPV count. PRM-FE (a) Performance Report Monitoring - Far End The PRM fr