Siemens OCM III, Instruction Manual, Page: 20 / 112

INSTALLING THE MEMORY BACK-UP BATTERY
The memory battery, B1 (see Specifications) should be replaced yearly to insure
memory back up during lengthy power outages. An on board capacitor provides
one hour of memory retention in order to preserve the memory while the battery
is being changed.
COMMUNICATING VIA COMPUTER
Refer to Communication.
INSTALLING THE PROGRAMMER
To program the OCM-3 via the Programmer, it must be placed into the front cover
recess of the OCM-3. The back of the Programmer has a magnetic plate which will
hold the programmer in place. It can be removed when programming is completed.
Do not install the memory back-up
battery until the OCM-3 is to be used.
The unit is supplied with one battery
package. Remove the battery from
the package and insert it into the
battery socket.
Refer to Operation \ Memory.
Disconnect power before installing or replacing the battery.
20 OCM III 7ML19985AB01