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Document Name: LS350 - Installation Guide_R02.docx 1 o f 15
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LS-350-10
If you require further assistance after following the troubleshooting steps, please contact our
support team at 1-877-731-1010.
Not able to call out
from the cab phone.
Check if incoming phone lines are properly connected to the LS-350-10 inputs
Assess if the incoming phone lines are showing standard voltage levels [On-hook: ~48VDC / Off
Hook: Below 10VDC]
Check if primary phone and secondary phone number are set correctly on the elevator phones
Power Cycle the LS-350-10 then, when reconnecting the power back, start with the battery and then
the main power. This will reset the GPIO expander.
Not able to call in to the
cab phone.
Power Cycle the LS-350-10 then, when reconnecting the power back, start with the battery and then
the main power. This will reset the GPIO expander.
Elevator phone calls
out but hangs up
immediately
Set function 29 to 0 on the MWP-302 (Line polarity)
Alarm output not
changing state / Alarm
trigger for no reason
Alarm not being
triggered upon external
line disconnection
Elevator alarm bank not
working
Make sure the elevators are assigned to an elevator bank under the BANK ALERT section
Make sure line monitoring is enabled on each active elevator phone
Function 12 must be set to 3 in all elevator phones
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