Interlogix ATSx500A Series Installation And Programming Manual page 23

Chapter 2: Installation
3. Disconnect the battery. Note that depending on the battery model the connec-
tors may be located differently.
4. Remove the battery from the holder.
In case a battery BS131 (12 V / 18 Ah) in an ATS1640 housing is used in
combination with ATS7700 PSTN expander board, it is required to have double
insulation in place. Use adequately insulated wires for PSTN cabling, and make
use of heat shrink.
Dispose of the battery as required by local ordinances or regulations.
See the specifications for your product or contact technical support for
information on replacement batteries.
Advisor Advanced ATSx500A(-IP) Installation and Programming Manual 17