19 Operation on an ISDN Access
ARGUS 152
225
B channel loop
“B channel loop” mode is required in order to run a bit error rate test using a loopbox (an
ARGUS is the loopbox) at the remote end.
ARGUS - Main Menu.
Activate a “B channel loop”
The ARGUS will wait for a call. Any
incoming call (regardless of the service)
will be taken immediately. The ARGUS will
switch a loop back in the B channel that is
specified by the exchange and then send
the received bit pattern back to the caller/
sender.
Display shown after accepting a call:
<TM>
Open the Test Manager
<Menu>
Open the Main Menu:
the “B channel loop” remains
active.
From this menu, you can start a
second B channel loop
connection (this is also possible
using
<TM>
). If you press
<TM>
(see page 260) the ARGUS will
return to the "B channel loop, wait
active" display.
Exit the “B channel loop” mode.
-
B channel used and service
-
The caller's number (from:)
-
The number dialled (to:)
-
If available: TON, NP, UUS etc.
<TM>
Opens the Test Manager (page
260).
<Menu>
Open the Main Menu.
Clear down the B channel loop
connection; the B channel loop,
however, remains active!
Single tests
BERT
B channel loop
