Paradyne 7975 Installation Instructions Manual page 10

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Table 2. Synchronous Data Port Options (2 of 2)
Port (DTE) Initiated Loopbacks
Possible Settings: Disable, DTLB, DCLB, Both
Default Setting: Disable
Allows the initiation and termination of a local Data Terminal Loopback (DTLB) or remote
Data Channel Loopback (DCLB) by the DTE connected to this port. (DTLB is equivalent
to a V.54 loop 3, and DCLB is equivalent to a V.54 loop 2.) Control of these loopbacks is
through the DTE interchange circuits as specified by the V.54 standard.
ElasticStore
Possible Settings: Disable, Enable
Default Setting: Enable
Used to enable or disable a first in first out (FIFO) buffer circuit for the incoming external
clock. This circuit is used to compensate for the differences between the frequencies of
the data clocks for the two units in the circuit. This option only applies if the unit is set for
external timing.
Table 3. System Options
DSL Mode
Possible Settings: LTU, NTU
Default Setting: NTU
Controls whether the unit is configured as a control unit or tributary unit.
NOTE: Changing this option will reset the unit.
Test Timeout
Possible Settings: Enable, Disable
Default Setting: Enable
Allows user-initiated tests to end automatically. The feature should be enabled when the
unit is remotely managed, so that control can be regained after a test is accidentally
executed.
Test Duration (min)
Possible Settings: 1–120
Default Setting: 10
Number of minutes for a test to be active before automatically ending.
March 1999 7975-A2-GZ41-00