Trend AuroraPlus User Guide
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Battery Charging Switch (Optional)
AuroraPlus can be powered from an external charger or from
an internal rechargeable battery in both ISDN and Analogue
modes. The two switch positions are:
BAT Power is supplied from the internal
rechargeable battery, even when the charger is
connected.
CHARGE The internal battery is charged if the charger is
connected. If the charger is not connected,
setting the slide switch to the CHARGE
position acts as an off switch.
Charging is indicated by the red charging LED,
next to the charger connection socket. The
LED flashes when the charging process is
completed.
Battery Low Warning
When the remaining battery charge drops to 30 minutes, an
audible signal is sounded and a warning is displayed on the
screen. This screen is redisplayed every 30 seconds. If the
battery level drops still further, before it fails completely, the
unit switches itself off. It cannot be switched on again until
the external charger is connected.
Termination Resistor Switch (TERM)
Correct operation of the S-bus connection (Point-to-Point or
Point-to-Multipoint) can depend on the customer wiring
being correctly terminated. The wiring must be terminated
with 100 ohms at either end of the S-bus connection in both
directions, i.e. Transmit (Tx) and Receive (Rx).
Chap02.P65 30/04/01, 16:306
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