Verilink Red Zone Encryption (REMS) (880-502423-001) Product Manual - Manual (Page 73)

Red Zone Encryption Management System (REMS) User Manual 7-3
In a typical operational scenario using AM2000, a near-end operator in
the Red Zone can monitor the quality of the line as it is received by the
near-end BRC and also receive reports from the far-end BRC. A certain
subset of performance data from the far end is sent back to the near-end
BRC in the form of Performance Report Messages (PRMs). The PRMs
are combined with the near-end performance data and sent back to the
FBR where they can be displayed by AM2000.
A full set of reports can be also obtained from an AM2000 installed on
the far end.