Xantrex Technology 250 - Manual (Page 12)

8
4.7 AC Outlet Switch
The AC outlet has an ON/OFF switch (located above the AC
outlet) which illuminates when the switch is turned on
indicating power is available at the AC outlet.
4.8 Audio Alarm
Three types of conditions will set off the audio alarm. A low
battery voltage condition, an over-temperature condition, and a
reverse polarity connection. (See Sections 4.3 and 5.3.)
4.9 Jumper Cable Port
The Jumper Cable Port supplies high-power DC current and is
located on the lower left side of the unit. This port is wired
directly to the internal battery. The Jump-Start Cables supplied
connect to the Jumper Cable Port when you need to boost a
vehicle’s starting battery. Be sure to read Section 7 for full
details before attempting to jump-start a vehicle. This port can
also be used to connect an external battery to Portable Power
250 to increase operating time. See Section 9 for more
information.