Operator`s manual
43 
Test Line 
This Test Menu allows you to test the SD2’s telephone line status: 
From the Test Options Menu press ¬ and ¦
or 4 to select Test Outputs 
Menu: 
1.  Press [ to select: 
Test Power Supply 
This Test Menu allows you to test the SD2’s supply voltage: 
From the Test Options Menu press ¬ and ¦
or 5 to select test battery 
voltage: 
¬¦ Ent to Select
Test Supply
1.  Press [ to select: 
Test Supply
12.1V
2.  It is recommended that the normal running voltage should not go 
below 12volts. 
Software Version 
This option displays the current SD2 software version. 










