Teleste EASI ATM IND2x2 Series User Manual page 19

Loopback enable checkbox
When this box is ticked all incoming ATM cells are forwarded to
the next device in the network. Even those cells received by
the Decoder itself are copied forward. This allows Decoder
daisy-chaining and full utilisation of STM-1 capacity.
TS Filter checkbox
Because of the ability to loop forward the ATM stream it is
possible that the cells once sent are returning back to the
transmitting unit. In order to prevent those cells to start another
round in the network they are discarded. This box is a reminder
of the automatic cell deleting that takes place in every
Decoder. This feature is not user controllable.
Data Filter checkboxes
When theses boxes are ticked the bidirectional data channels
are not forwarded at the ATM level. If this box is clear the data
channels are considered to be broadcast type and they are not
only picked up by this unit but also are passed forward to the
next device in the ATM network. When using data broadcasting
and there are more than one terminal unit connected please
note that only one of them is allowed to answer at a time.
Multiple answers will cause a confl ict at the master device of
the RS data network.
Stream Rate frame
This frame indicates the transmitted and received ATM bitrate
in kbps.
AU-4 Pointer checkbox
For SDH network operation the AU-4 pointer can be enabled or
disabled. The default setting is disabled (Sonet operation).
SDH frame
This frame displays the following fl ags:
LOS = Loss of Signal
The LOS alarm indicates that there are no transitions occurring
in the signal received by the network element.
LOF = Loss of Frame
The receiver raises the LOF alarm when an OOF condition
persists for 3 ms or longer. It clears the alarm when it receives
a valid signal for 3 ms.
IND2x2 Series User Manual rev001 17