OneAccess Crocus CNV, User And Reference Manual

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Crocus CNV Diagnostic tests
Reference manual 147
11.5.4 Digital loop
Initiating the DL test also establishes a digital loop, but on the local Crocus CNV itself. This loop is
compliant to loop 2 as described in the ITU-T recommendation V.54.
The loop is situated immediately behind the DTE interface of the remote Crocus CNV, schematically
represented as follows:
How to use this test?
With this test, you can verify the same things as with the remote digital loop. The only difference is that
the loop is not made on the
remote Crocus CNV (as with RDL), but on the local Crocus CNV. This can be
necessary when, for example, the remote Crocus CNV is unable to initiate a remote digital loop test.
onboard
G703
interface
local Crocus IF CNV
DTE
interface