Nokia DNT2Mi sp/mp Operating Instructions Manual page 53

PRBS tests
9
ITU-T V.52 2 -1 test pattern
Transmitter and receiver
towards the line.
Remotely controlled
network test loop
ITU-T X.150 loop 2 at remote
end
Data coming from the line is
looped back to the line.
Activated at the local port
and a loop is established at
the remote end.
Remotely controlled
network test loop with
PRBS test pattern
ITU-T X.150 loop 2 at remote
9
end and ITU-T V.52 2 -1 test
pattern
Transmitter and receiver at
the local port.
DN01145897
Issue 2-0 en
Table 14. Tests available for DNT2Mi (Continued)
Front Q1
panel management
Port TR Tx-Rx test (TR)
test (5,2,#,4)
Port RL
test
Port RLTR
test
LOCAL DNT
PORT 1
DTE
PORT 2
DTE
PORT 3
DTE
Figure 28. Network test loop (all ports)
© Nokia Corporation
Nokia Proprietary and Confidential
Automatic Note
control
See Figure "PRBS (2
1) test (transmitter /
receiver)" after this
table.
V.xx Circuit 140 Automatic control can
or X.21 loop 2 be disabled by setting
command circuit 140 in the 'Not in
use' state at the local
port.
Establishment of the
requested loop can be
disabled by setting
"Remote loop not
allowed" at the remote
end.
See Figure "Remotely
controlled network test
loop" after this table.
Establishment of the
requested loop can be
disabled by setting
"Remote loop not
allowed" at the remote
end.
See Figure "Remotely
controlled network test
loop with PRBS test
pattern" after this table.
REMOTE DNT
LINE
BLOCK
Maintaining DNT2Mi
9
-
PORT 1
DTE
PORT 2
DTE
PORT 3
DTE
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