FX70 Supervisory Controller Installation Instructions
17
Backup Battery
The optional sealed lead-acid backup battery is an
external, 12 V, rechargeable battery (or multiple
batteries). The battery is sized to operate the system
during loss of primary power, for a period of time. This
method includes the controller, as well as power to
attached I/O expansion modules.
You connect the backup battery to the controller using
a 2-position connector (see Figure 12). Whenever
primary-powered, the controller supplies a constant
trickle charge to this battery, at 200 mA maximum. At
startup (boot), a test of the backup battery is
performed, as well as a periodic test. A system alarm is
generated if a battery test deems the backup battery to
be bad.
Providing that the backup battery tests well, the system
operates from this backup battery power upon loss of
primary power until the charge level of the on-board
NiMH battery pack reaches 0. Note that both batteries
discharge in parallel. However, as the sealed lead-acid
backup battery capacity is much greater, the NiMH
battery pack discharges much slower than if these
backup battery(ies) were bad or not present.
Note:
If the backup battery test was bad, upon loss of
primary power, the controller performs an immediate
shutdown, backing up data and powering off (including
attached readers, expansion modules).
You should replace the sealed lead-acid backup
battery(ies) approximately every 3 years, or more often
if the unit is in a high temperature environment.
LEDs
The FX70 provides a number of LEDs on its main
board, of which only the Status and Heartbeat LEDs
are visible on the cover. Checking other LEDs requires
first removing the cover.
LEDs include the following types:
•
Status
•
Heartbeat
•
Debug
•
Ethernet Ports
For the location of LEDs on the main board, see
Figure 6.
Status
The green STATUS LED is located on the cover. On
the main board, it is also the green SYSOK LED next to
the HBEAT LED—both are found near the Ethernet
connector housing. The status LED should remain lit
whenever the controller is powered, or else be blinking
during the boot sequence. If the status LED does not
light while power is applied, contact your technical
support representative for technical support.
Heartbeat
The yellow heartbeat HBEAT LED is located on the
cover, as well as on the main board next to the SYSOK
Status LED. The heartbeat LED blinks about once per
second. If the heartbeat LED stays on constantly, does
not light, or blinks very fast (more than once per
second), contact your technical support representative
for technical support.
Debug
The yellow DEBUG LED is located on the main board
near the Ethernet connector housing, and remains lit
when the controller has been rebooted with the serial
mode select jumper in the serial shell position (see
Figure 6). This LED indicates that the DB-9 RS-232
port is operating in serial shell mode.
Ethernet Ports
Two LEDs for each of the two LAN ports are provided
on the back of the metal LAN connector housing, and
operate as follows:
The left-side green activity LED indicates activity on
that port as follows:
•
Off
— No Ethernet link is made
•
On
— Ethernet link is present, but no activity on
the LAN
•
Blinking
— Ethernet link is present with data
activity on the LAN.
The right-side yellow speed LED indicates Ethernet
connection speed, as either:
•
Off
— Fast Ethernet/Ethernet (100 Mbps /10
Mbps).
•
On
— Gigabit Ethernet speed (1000 Mbps).
Cleaning
If dust or metal filings are present inside the unit, clean
with vacuum or compressed air. Otherwise, no cleaning
inside the unit is required. Optionally, if the cover
becomes dirty, you can wipe it with a damp cloth and
mild detergent.
