364 Planning, Installing, and Managing the IBM System x3950 M2 Green LED: This shows the iPDU input voltage status. When this LED is lit,the iPDU is receiving voltage. If the input voltage is too low, this LED isflashing. Operation model DIP switch: Sets the mode to operation for this iPDU. Thedefault mode is S1 off, S2 off for normal operation. Other settings:– 1=Off, 2=Off: The card can run normal operational firmware– 1=On, 2=On: The card can start in diagnostics mode.– 1=On, 2=Off: Serial upgrade mode. You can upgrade the iPDU firmwarefrom the serial connection if the network upgrade is not available.– 1=Off, 2=On: Read only mode. The device can run normal operationalfirmware, but all parameters of the device cannot be changed by a user. Reset button: Reset only the iPDU communication functions. This reset doesnot affect the loads. RJ-45 console connector: Connect the DB9 to RJ45 cable that comes withthe iPDU to this connector and to the serial (COM) connector on aworkstation or notebook computer and use the workstation or notebook as aconfiguration console. You can also connect an environment-monitored probeto this connector. The environment-monitored probe monitors humidity andtemperature. The connection of an environment-monitored probe isautomatically detected. RJ-45 Ethernet (LAN) connector: Use this connector to configure the iPDUthrough a LAN. The Ethernet connector supports 10/100 auto sense networkconnection.6.8.5 Intelligent PDU power management Web interfaceEach intelligent PDU can be accessed by a Web browser. The section describesthe IBM Enterprise DPI C19 PDU+ (part number 39M2818) in particular.The Web interface, in Figure 6-36 on page 365, shows the actual power datameasurement at the load groups, which are refreshed once per second.
