User's Manual Part 1

Installationguidelines
46
PSU DPU-302
TheDPU‐30
2usesaHANfourprongHeavyDutyPowerConnector.
 TheDCtoDCDPU‐302powersupplyhasininputratingof‐36VDCto‐72VDC.
 TheDPU‐302requirestheinstallertoprovide18AWGwirefortheHAN3Aplugkit(HartingP/N1020003
0002)thatisprovidedwiththepowersupply.See
Table59 forconnectorpinout.
TheDCpowersupplycansupportasingleMa
sterFrameUnitwithupto12cards(BIU,FOI,ICU).Thecardsmaybe
allofonetypeoramixtureofcards.
Table 59 DPU-302 Connector Pinout
Primary Power Configuration
Connecttheoutputofthepowersu
pplytotheinputoftheMasterUnit.
 UseP101 ontheMasterUnitasthemainpowersupplyfeed.See Figure32 .
Note: Notethatalthoughtherearetwoou
tputconnectionsonthefrontofthePSU,thePSUcanonly
poweroneMasterFrameatatime.
Figure 32 Primary Power Configuration
Primary Power for One Master Unit
Backup Power Configuration
Itisnotrequiredtouse
abackup/redundantpowersupply,butiftheprimaryPSUfailsabackupPSUwillallowthe
unittocontinueoperatingwithoutcausinganoutage.
Thesystemde
signermayelecttohaveasingle,redundantPSUactasabackuptotwodifferentMasterUnits
simultaneouslywiththeunderstandingthatifthemainPSUforeachMasterUnitfailsduringthesametimeperiod
thatthebackup/redundantPSUcan'tsupportbothMasterUnits.
 UseP102ontheMasterUnitforabackup/redundantpowersupply.See Figure33onpage46 .
Figure 33 Backup Power Configuration
Backup Power for Two Master Units
Han 3A Pinout
Pin#1 (+)Positive
Pin#2 Notconnected
Pin#3 (‐)Negative
Pin#4 Earth/Ground