{
“M”, “P” or “–“ symbols show state of measuring mode: “M” – measurements, “P” – pause, “–“ – no
measurements at the moment.
{
“S” or “–“ symbols show state of the test pattern transmission mode: ”S” – transmission, “–“ – no test
pattern transmission.
{
“A”, “
Е
” or “–“ symbols show the errors insertion mode state: “
Е
”– errors insertion, ”
А
” – alarms
generation, “–“ – normal operation.
{
“V” or “–“ symbols show the voice function mode: “V” – VF insertion from the microphone, “– “ –
normal operation.
{
Signal level at the Rx port (in dB).
{
Current time.
LED indicators description
Power
External power supply:
•
No indication – no external power supply connected.
•
Green – external power supply is connected.
•
Green/Yellow (blinking) – internal battery is charging.
SIG
Signal Presence:
•
Green – signal detected.
•
Red – loss of signal at the moment.
•
Yellow – since reset, loss of signal has been registered at least once.
AIS
Alarm Indication Signal (all 1):
•
Green – no AIS alarm has been registered since reset.
•
Red – AIS alarm at the moment.
•
Yellow – since reset, AIS alarm has been registered at least once.
FRM
Frame Alignment Detected:
•
Green – frame is synchronized.
•
Red – loss of frame synchronization at the moment.
•
Yellow – since reset, loss of frame synchronization has been registered.
MFR
Multiframe Alignment Detected:
•
Green – multiframe is synchronized.
•
Red – loss of multiframe synchronization at the moment.
•
Yellow – since reset, loss of multiframe synchronization has been registered.
RDI
Remote Defect Indication:
•
Green – no RDI detected.
•
Red – RDI detected at the moment (bit A=1 in NFAS).
•
Yellow – normal operation, but since reset, RDI has been registered.
SES
Severely Errored Seconds. If the BER value is more than 10
ˉ
³ in BER test mode or if more than 30%
CRC blocks are Errored in case of CRC synchronization:
•
Green– normal operation since reset.
•
Red– SES at the moment.
•
Yellow– since reset, at least one severely errored second has been registered.
RMA
Multiframe Remote Alarm Indicator:
•
Green– no RMA detected.
•
Red– RMA alarm at the moment.
•
Yellow– normal operation, but since reset, RMA has been registered.
PAT
Pattern Synchronization and Loss:
Page 10 of 30
TX50e e-Manual D07-00-009 REVA00