Cabletron Systems SmartSwitch SBU128, Руководство пользователя

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SBU128
User Manual
80-10200000-01 3–4
3.1.2 BACKUP Button, Factory Default
A non-latching switch is provided for manual backup and restoral. When
pressed the SBU128 will attempt a backup call using the stored ISDN
number(s). If pressed when a backup call is in progress, the SBU128 will
restore the user onto the leased circuit, and release the ISDN call.
It is not advisable to use the backup button when the SBU128 is set for
automatic backup or restoral as this causes operational conflict.
The backup button is also used to factory default (returning configuration
settings to default values) the SBU128 on power up, by holding it
depressed for about 2 seconds until the Layer 1 LED illuminates. At this
point it must be released to perform the default. If for any reason the
button is held in for more than 10 seconds, other LEDs will light
indicating that the unit has entered other service states. The unit must
be power cycled again to exit this mode, and correctly factory defaulted.
3.1.3 Talkwire and ALERT Indicators
The Talkwire LED lights when a Talkwire session is active, and the
ALERT LED lights when an ALERT is being transmitted from the
Command Port