p. 728EnglishENGLISH1. Connector RJ12 foroptional telephonehandsetFor configuration andintercom communicationCan also be used forexternal calls. Any standardanalogue tone dialtelephone can be used.2. Resets button• Reset all alarms.• Terminates a phone callin progress.• Triggers self test.• Activates display of GSMsignal strength.• Triggers battery test.3. LED indicatorsa. Mains powerb. Active alarm/batterystatusc. PSTN/GSM Net, callstatus4. USB Mini B PC connectionFor firmware update andconfiguration.5. RS232 PC connectionFor configuration.6. Screw terminal for optionaltelephone handsetFor configuration andintercom communication.Can also be used forexternal calls.Any standard analoguetone dial telephone can beused.7. Slot for optional cardCANopen-Lift(*SL6-CAN-BOARD)8. Connector for externalsystem speaker9. GND10. Terminals11. 12 V Battery, 1,2 Ah12. Slot for GSM interfaceboard13. Battery slot for RTC, RealTime Clock(not yet implemented)Overview SL6+main unit(Fig 1.1)[DOCSxxxx] SL6 Quick guide 201811.indd 28 2019-02-21 15:10