Raisecom RC831-60-FV35 Series User Manual page 16

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Indicators for the testing function
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Indicators for the optical interface
TD Green
RD Green
PAT Yellow
LOOP Yellow
ON: local AIS alarm only
OR alarm occurs on both local and remote
site
Flickering: remote AIS alarm only
V.35 interface TD signal indicator
Flickering: There is TD signal (transmission
data) data flow at the V.35 interface. The
frequency of the flicker depends on the bit rate
of the interface. When the rate is 64Kbps, the
flicker is the slowest. When the rate is
2048Kbps, the flicker is the fastest.
OFF: No TD signal (transmission data) data
flow at the V.35 interface.
V.35 interface RD signal indicator.
Flickering: There is RD signal (receiving data)
data flow at the V.35 interface. The frequency
of the flicker depends on the rate of the V.35
interface. When the rate is 64Kbps, the flicker
is the slowest. When the rate is 2048Kbps, the
flicker is the fastest.
OFF: No RD signal (receiving data) data flow
at the V.35 interface.
Bit error testing indicator.
ON: received the pattern sent by the bit error
testing unit and the line is normal without error
bit.
Turn OFF for at least 1s: received the pattern
sent by the bit error testing unit, but error bit
has been spotted on the line.
OFF: The bit error testing function is disabled.
V.35 interface loopback status indicator
ON: V.35 interface local loopback
Flickering: V.35 interface remote loopback
OFF: no loopback at the V.35 interface
User Manual
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