Patton electronic 3088RC S1-8 TX Clock, Setting, Description, S2-1 Front Panel Switches, S2-2

S1-8: TX Clock

S1-8	Setting	Description
ON	Normal	TD sampled on falling edge of TX clock.
OFF	Inverted	TD sampled on rising edge of TX clock.

S2-1: Front Panel Switches

The 3088RC uses front panel switches to control test modes. They may be disabled so that the 3088RC ignores them.

S2-1	Front Panel Switches
ON	Disabled
OFF	Enabled

S2-2: Line Probe

Line probe is a mechanism that determines the highest rate (192K to 2304K) that the DSL link can reliably support. This takes place during training. The DSL rate will be set to the rate that line probe determines. Note that both the CO and CPE unit must have line probe enabled for it to take effect.

Line probe could be used to determine the best rate the line will support, and then the user could set the units for that rate and disable line probe so that the rate won’t change without the user’s knowledge.

S2-2	Line Probe
ON	Disabled
OFF	Enabled

S2-3: Annex A/B

Annex A is typically used in North American-like networks, whereas Annex B is typically used in European-like networks. The different annexes specify different PSD (power spectral density) masks because of the difference in T1 and E1 PSDs.

S2-3	Annex
ON	A
OFF	B

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