When leads to the battery are removed, the panel does not generate a low battery report.
The D8112 panel is not sending signals when modem format is selected to the Central Station.
Only the D8112G2 can send signals in Modem II format with a CS setting of 7.
The D8112E, D8112E1, D8112G, D8112G1 and D8112A must have CS set to either Blank or a selection between 1 and 6 but not 7.
Only Modem Format can report a 4 digit account number to the Central Station all others only report a 3 digit account number.