Int 15 Fn 4600  - Compaq Slt/286 - Read Power Conservation/modem Configur  [b]

   AX = 4600h

Return: AH = modem configuration information
       bit 0 powerup state (0 off, 1 on)
       bit 1 modem installed
       bit 2 IRQ line assignment (0 IRQ 4, 1 IRQ 3)
       bit 3 COM port assignment (0 = COM 2, 1 = COM 1)
       bit 4 modem state (0 not assigned, 1 assigned)
       bit 5 modem is on
   AL = power conservation status information
       bit 0  power source (0 internal, 1 external)
       bits 1-2 low battery state
           00 no low battery condition
           01 low battery 1
           10 reserved
           11 low battery 2
       bits 3-4 power conservation mode
           00 automatic
           01 on
           10 off
           11 reserved
   BH = default system inactivity timeout (1-21 minutes)
   BL = current system inactivity timeout (1-21 minutes)
   CH = default video display inactivity timeout (1-63 minutes)
   CL = current video display inactivity timeout (1-63 minutes)
   DH = default fixed disk drive inactivity timeout (1-21 minutes)
   DL = current fixed disk drive inactivity timeout (1-21 minutes)

See Also: AX=4280h,AX=4601h,INT 77