Pepper Computer Modular Computers RS485 - Manual (Page 29)

SMART I/O User’s Manual
©1996 PEP Modular Computers GmbH March 12, 1996 Page 1 - 17
Introduction
1
1.4.5 Battery Installation
The battery piggyback SMPBBAT is fitted into the socket BU3 on the
SMART-BASE. It is important that the piggyback is inserted in the correct
way. The figure below illustrates this procedure.
Figure 1.4.5.1: Battery Piggyback Installation
SMPBLED
BU3
Pin 1
Pin 5
SMPBBAT
Battery
WARNING!
Once fitted on the board, the battery should be on the right hand side of the
SMPBBAT piggyback. If the battery needs to be replaced, it must only be
done with a replacement SMPBBAT piggyback, the order number of which
is shown in the Ordering Information section of this manual.
The temperature on the battery must not exceed +70 ° C, due to the risk of
battery damage! For SMART I/O modules with extended temperature ranges
of up to 85 ° C, a special lithium battery must be fitted to the SMPBBAT.
Battery Type 3V Lithium BR2032 3V Lithium CR14250
Battery Capacity 190mAh 850mAh
Typical Data Retention Time *140 Days 590 Days
* this is the time without the main power being applied