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4 Operation on a PRI Access
4.7.2 Automatic X.31 Test
D-Channel
The "X.31 Automatic, D-channel" test consists of two steps:
1. Step:
The ARGUS tests whether it is possible to access the X.25 service via the
D-channel on the ISDN access under test. The ARGUS checks all of the
TEIs from 0 to 63 one after the other. All the TEIs, which support
X.31service on Layer 2, will be displayed.
2. Step:
For each TEI with which X.31 is possible on Layer 2, a CALL_REQ packet
will be sent and then the ARGUS will wait for an answer. Beforehand, the
ARGUS will request the entry of the X.25 access number, which will be
saved in speed-dialing memory under X.31 test number. With the entry of
the X.25 access number, you can – if you wish – select a logical channel
(LCN) other than the default.
Single Tests
X.31 Test
X.31 profile 1
Automatic
D-Channel
40
The ARGUS - Main menu
Select the profile
Change to the profile parameters
<Edit>
The parameters can be edited.
Start test
The start up procedure can take up to 4
minute. The ARGUS will display the
currently tested TEI, the previously tested
TEI and the results:
OK
= X.31 is available for this TEI
NOK
= X.31 is not available for this TEI
ARGUS PRI
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