3-11
Switch Hardware
3.2.4 Power Supply Modules
The SFCS-200BX and the SFCS-1000 each come with two removable power
supply modules. In the event of a single power supply failure, the power sup-
ply indicator LED(s) on the front panel of the supplies will indicate the failed
supply. The failed power supply can be removed and replaced while the other
supply continues to provide power to the enclosure. In this manner, a single
power supply failure will not cause the switch to stop functioning.
WARNING! The SFCS-200WG comes with internal, non-
removable power supplies. Attempting to
remove these power supplies could result in
serious injury or may cause permanent dam-
age to the unit.
3.2.4.1 SFCS-200BX AC Power Supply
The SFCS-200BX has two power supply LEDs, one for each removable, hot-
swappable power supply. Each LED is located to the left of the power switch
on the front panel for that supply. On the AC power supply for the
SFCS-200BX, the LED is green under normal circumstances, indicating that
the 5-volt supply coming from that particular power supply is functioning
properly.
CAUTION If the power supply LED is red, the faulty sup-
ply should be turned off as soon as possible,
using the single power switch which controls
power to that supply. The problem should
then be diagnosed and repaired. Please refer
to Chapter 3, Hardware Maintenance Proce-
dures, for details about how to hot-swap a
power supply in the SFCS-200BX.
NOTE: A replacement AC power supply will not
function in a DC-equipped SFCS-200BX, and
vice-versa. However, no damage will be done
if this occurs.