TM 10-6640-239-13 2-26 j. Power Distribution Module.  Figure 2-11 and Table 2-11 list controls and indicators for the power distribution module. Table 2-11.  Power Distribution Module Control Panel - B-Lab Index Number Control or Indicator Function 1 Panel Lights Used to illuminate power distribution module panel. 2 Over Current Indicator Illuminates when any phase reaches an over current condition.. 3 Over Current Reset Switch Used to reset the power distribution module when an over current condition exists. 4 Battle Override Switch Used to apply power to either Modular Base Petroleum Laboratory if an out of phase or over current condition exists. 5 Lights On/Off Switch Used to turn on the panel lights. 6 Blackout Switch Used to remove power from both panel lights, out of phase indicator, and over current indicator. 7 Out of Phase Indicator Illuminates when any of the 3-phase inputs are out of phase. 8 Frequency Meter Monitors input frequency to both Modular Base Petroleum Laboratories. 9 Voltmeter Monitors input voltage to both Modular Base Petroleum Laboratories. 10 Lab-A Hour Meter Monitors the total time power is applied to Modular Base Petroleum Lab A. 11 Lab-B Hour Meter Monitors the total time power is applied to Modular Base Petroleum Lab B. 12 Lab-A On/Off Switch Used to turn on power to Modular Base Petroleum Lab A. 13 Lab-B On/Off Switch Used to turn on power to Modular Base Petroleum Lab B.