LCX 890 Installation Guide 55
3. The RD light begins flashing only if data is being received from
other controllers on the network. This may not happen immediately.
4. If the CPU light flashes more slowly than normal, every .4 sec, it
means the CPU has failed a ROM test. If it flashes more quickly than
normal, every .05 sec, it has failed a RAM test. If the CPU does not
flash at a normal rate, contact your Andover Controls representative
for assistance.
Connecting the Battery
When you have the controller mounted, find the AA battery in the lower
right corner of the lower part of the controller, to the left of the AC pow-
er voltage jumpers. Remove the plastic tab beside the clip on the battery
to activate the battery.
The battery is an 1.8 A-hr 3.6 V primary lithium battery that runs the
real-time clock and maintains RAM and realtime clock when AC power
goes out. The battery is DOT-certified.
Reset Button
The RESET button is the red square button just above the battery on the
far lower right side of the LCX 890 board and on the lower left side of
the LCX 898. You press it to restart the controller without erasing mem-
ory. The same events occur as described under Power Up the LCX 890
or 898.
Connecting the Andover Controls Service Tool
The SERVICE PORT on the left side of the bottom of the controller,
immediately to the left of the EMX 170 or SP 100 port, is to connect the
Andover Controls Service Tool to an LCX 890. The service tool access-
es all LCX 890s and other Infinet controllers on the same network. For
information on availability of the Andover Controls Service Tool, con-
tact your Andover Controls representative.
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