Teknor Industrial Computers PCI-993, Technical Reference Manual

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System 6-19
6.08 BATTERY
The TEK933 comes with a 360 mAh TL5186 TADIRAN battery, which is located at
B1 (#10 on Diagram 6-2). It powers the Real Time Clock and the CMOS Setup,
whenever the board is powered down.
The TL5186 TADIRAN battery has a shelf life of approximately 10 years (under "no-
load" conditions). The actual life of the battery depends on environmental (temperature)
conditions. The TADIRAN TL5186 has an operating range of -55
o
to 75
o
C and
discharge characteristics vary with temperature.
The voltage supplied by the battery is 3.6 volts. This can be verified with a standard
voltmeter at the battery socket's two extreme pins (if you use the pin on the soldered
side, you do not have to remove the battery).
Jumper W27 enables the Internal Battery's power. Removing the W27 jumper has the
same effect as putting the battery in storage; TEKNOR always ships its board with
battery jumper removed in order to increase the life of the battery. Please refer to
Section 2 for jumper location and setting.
The TADIRAN TL5186 is UL recognized. Its UL component recognition is
MH12193.
The TEK933 board has a special feature that allows the CMOS RAM Setup to be saved
in Flash EPROM memory. This feature eliminates battery dependency by saving and
recovering the CMOS RAM Setup from Flash (only the time and date could be lost).
In order to save your current CMOS RAM Setup in Flash, you must update the
VIP-UP Setup (with F10), while the "Use Flash To Store CMOS RAM SETUP"
(first screen) is set to "Yes". See section 16 for more information.