Patton electronic 2710 - Manual (Page 21)

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– Remote In-Band Loops: Enabled (default)
Options: Enabled, Disabled
In ESF, D4 and Unframed formats, the unit can respond to special
repeating codes in the data stream that represent loopback commands.
The command to loop up (go into loopback) is a repeating pattern of
00001s. This pattern overwrites the normal data. When this code is
detected for 5 seconds, the unit will go into loopback if the Remote In-
band Loopback is Enabled. When a repeating code of 001s is received
for 5 seconds, the unit loops down (goes out of loopback). The delayed
recognition guards against false starts, since the code must be present
for a long time continuously. When Disabled, the unit will recognize the
codes but will not respond to them. The loopback timeout also applies to
this feature.
– V.54 Loops: Enabled (default)
Options: Enabled, Disabled
This is a special in-band loopback facility that sends a special pseudo-
random pattern over the data stream. This is the only loopback that the
unit can initiate. This is useful for campus applications when you need to
put a remote unit in loopback. The unit responds to the V.54 loopback
command, and the whole process takes only a few seconds to complete.
When V.54 Loopback is disabled, the unit will not be able to send or
respond to V.54 loopback commands. The duration of the loopback is
limited by the loopback timeout setting.
– Default ConÞg Source: EEPROM
Options: EEPROM, Switch
The NetLink-T1™ can be initialized via the conÞguration in the on-board
permanent memory (EEPROM) or via the internal DIP switches (Switch).
Once the unit is powered up, you may change the settings through the
control port or the DIP switches.
If you do not have a terminal, you may force the unit to use the DIP
switches as the default conÞguration source by turning off the unit, set-
ting all the DIP switches to the ON position, then powering on the unit.