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

 

 

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

 

 

S2-1: Front Panel Switches

The 3088 is optionally equipped with front panel switches for controlling test modes. If front panel switches are disabled, then their settings will be ignored.

S2-1

Front Panel Switches

 

 

ON

Disabled

OFF

Enabled

 

 

3.4 Console

The 3088 offers a console command line interface. A VT100 emulator configured to 19,200 kbps/1 stop bit/ no parity/ XON-XOFF flow control can be used to access the console.

Through the console, the following variables can be configured:

Password: The password used to login to the console.

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Patton electronic 3088 user manual S2-3 Annex A/B, S2-2 Line Probe, S2-1 Front Panel Switches, Console