19 Operation on an ISDN Access
ARGUS 152
269
19.15 Leased Lines on an ISDN Access
Besides dial-up connections to any subscriber, ISDN 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 (see page 213). A quick and simple 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 leased line (permanent circuit) must use the same channel.
Telephony
The Leased line settings are made in the
chapter 5 Configuring accesses page 23.
B channel select
Setup the telephone connection
Disconnect
Enter the B channel from the keypad (first
press
<Delete>
) or use the cursor keys to
set it.
The ARGUS will display the B channel
used and the duration of the leased line
(in h:min:sec).
Alternatively, the connection can be setup via Connection in the Single Tests Menu.
<Setting>
ISDN parameter
configuration, see page
212.
<Volume>
Set the volume
<TM>
Start the Test Manager, see
page 261.
Another connection can be
setup.
