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4.13 Leased line on a PRI access
Besides dial-up connections to any subscriber, PRI also supports the use of permanent
circuits switched to a specific remote location (leased lines). These leased lines
(permanent circuits) are available after setting up Layer 1, in other words after
synchronizing both terminals by exchanging HDLC-frames. The location where the clock is
generated can be selected . A quick test of a leased line can be made by placing or taking
a call on a selected B-channel. However, for a more precise test, a bit error rate test should
be run.
Both ends of the permanent circuit (leased line) must use the same channel.
4.13.1 Telephony
B-channel select
Setup the telephone
connection.
Disconnect
Alternatively, the connection can be setup via Connection in the Single tests menu.
ARGUS PRI
<Config>
Enter the B-channel from the keypad
(first press
keys to set the B-channel.
The ARGUS will display the B-channel
used and the duration of the leased line
(in h:min:sec).
<Volume>
Continuation on
<TM>
next page
4 Operation on a PRI Access
Configuring the PRI
parameters
) or use the cursor
<Delete>
Set the volume
Start the Test Manager (see
page 67).
Another connection can be
setup.
59
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