20
Echo 2 Mbps Multiplexer
SALES: 0118 965 5100
Timeslot Mismatch
The configuration in the local unit
does not match
that in the remote unit. This
would almost certainly lead to data errors on some channels.
D&I Carrier Loss
The Multiplexer cannot identify a valid synchronisation sequence (FAS, CRC4 etc)
from the unit attached to the D&I port.
D&I Remote Alarm
The unit attached to the D&I port is generating an
alarm
in the framing information,
that is, it is reporting that it has a problem.
Nx64 Control Off
One of the channel ports (which is in use) is not providing the multiplexer with a
true
CONTROL signal. This may mean that the signals have not been connected at all.
Note that un-connected CONTROL inputs will produce a
random
ON or OFF
indication. Control inputs from ports which are not allocated in the timeslot map are
ignored.
Nx64 Clock Fail
One of the data channel cannot synchronise its clock to the global network clock.
This may occur if a channel is set to
external
clock, and either no clock at all is
connected, or the clock which is connected is the wrong rate.
Remote Alarm
Shows FAULT if a remote Alarm is being received from the remote multiplexer.
Remote alarms are generated by any condition set at the remote site to give a MAJOR
alarm. If you want a particular alarm to be reported through the remote alarm bit, you
must set its
Action
field to either MAJOR or MINOR.N Any alarm which is set to
MAJOR or MINOR will cause a remote alarm to be sent through the link.
