
Model PDP Series 200 maxDPU4E Hardware Guide
Backup Link ......................................................................................................................................................... 2-2
CHAPTER 3 ......................................................................................................................3-1
DPU Switch Settings and Button Controls............................................................................................................... 3-1
Overview .................................................................................................................................................................. 3-1
Setting Address Switches.................................................................................................................................. 3-1
Setting the Mode Switch................................................................................................................................... 3-2
DPU Key Switch............................................................................................................................................... 3-3
Using the Reset Button ..................................................................................................................................... 3-3
Using the Takeover Button............................................................................................................................... 3-4
CHAPTER 4 ......................................................................................................................4-1
Interpreting Status LEDs........................................................................................................................................... 4-1
Overview .................................................................................................................................................................. 4-1
Interpreting LED Status While DPU Is Booting Windows CE ............................................................................ 4-2
Interpreting LED Status during Normal DPU Operation ..................................................................................... 4-3
Interpreting I/O LED Status during Normal DPU Operation............................................................................... 4-4
IOM Error Codes.................................................................................................................................................. 4-4
DPU LED States when Starting as Standalone or Backup DPU .......................................................................... 4-7
LED Indications during Shut Down and Restart .................................................................................................. 4-7
LED Indications While Flashing a New Software Image..................................................................................... 4-8
CHAPTER 5 ......................................................................................................................5-1
Installing Windows CE and maxDNA Software into DPU Flash Memory ........................................................... 5-1
Overview .................................................................................................................................................................. 5-1
Flashing CP & IOM Firmware via Network Download....................................................................................... 5-2
Installing CP Firmware Flash via Serial Download.............................................................................................. 5-3
CHAPTER 6 ......................................................................................................................6-1
Redundant DPU Operation ....................................................................................................................................... 6-1
Overview .................................................................................................................................................................. 6-1
Automatic Failover / Manual Takeover............................................................................................................ 6-1
Automatic Failover ........................................................................................................................................... 6-1
Manual Takeover.............................................................................................................................................. 6-1
CHAPTER 7 ......................................................................................................................7-1
Starting the DPU......................................................................................................................................................... 7-1
Startup States ............................................................................................................................................................ 7-1
Demanding a Blank Startup.................................................................................................................................. 7-1
Starting a Standalone DPU ................................................................................................................................... 7-2
Starting a Backup Pair of DPUs ........................................................................................................................... 7-3
Replacing a DPU in a Backup Pair....................................................................................................................... 7-6
Restarting a DPU after Failover............................................................................................................................ 7-7
Alarm Annunciation ............................................................................................................................................. 7-7
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