Qlink-3000 Multiplexing modem
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Copyright © 2003 -2005 Cronyx Engineering
24
E1 port loop (Port 0 loop)
Port 0
Port 1
Local device: E1 port loop
(Port 0 loop)
Remote device: normal operation
Port 0
(E1)
Port 1
When loop is enabled on the E1 port, the data received from the E1 port are turned back.
The E1-LOC indicator blinks (single flashes); its color depends on the status: red - loss
of signal (LOS) on the E1 receiver input, alarm indication signal (AIS) is received, loss
of frame (LOF) of multiframe (LOMF) synchronization, green - no errors.
E1 port tributary loop (Port 0 tributary loop)
Local device: E1 port tributary
loop (Port 0 tributary loop)
Remote device: normal operation
Port 0
(E1)
Port 1
Port 0
Port 1
The loop towards the SHDSL link may be enabled either on the full payload (see Local
loop on the link), or over the E1 port tributary (tributary loop).
When the loop is enabled on the E1 port tributary, the data corresponding to the E1 port
received from the SHDSL link, are turned back. In this mode E1 port receiver and
transmitter are disconnected from the link.E1-LOC and E1-REM indicators
simultaneously blink red.
