Operation Manual

ARGUS
58
A
RGUS 125
The BERT can be performed in three different ways:
1. BERT in an extended call to oneself
A remote number is not needed, since the ISDN connection is setup to oneself. In
this case, the ARGUS requires two B-channels for the test.
2. BERT with a loopbox
A loopbox (e.g., another member of the ARGUS family of testers at the remote end)
is required. The test uses one B-channel.
3. BERT end-to-end
This test requires a waiting remote tester such as an ARGUS in the BERT wait mode.
(see page 64 BERT wait) A bit pattern is sent to this tester.
Independent of the received bit pattern, the remote tester uses the same algorithm to
generate the bit-pattern that it sends back. Therefore, both directions are tested
independently.