
Cablelayoutandinterconnections
[U]PowercablesfromPowerSupplyUnitstoTransceiverUnit
TheDCpowerfromthethreePowerSupplyUnitsareconnectedtotheTransceiverUnit
usingbundledcables.Eachbundleholdsthefollowingcables:
a230VactoTRXUfans
b+6Vdc(oneredandonebluecable)
c+6Vdc(oneredandonebluecable)
d+12Vdc(oneredandonebluecable)
e+75Vdc(oneredandonebluecable)
Observetheblockdiagram.
InadditiontothethreeDCvoltages,thebundledcablesalsoprovide230Vacpowerto
thefandrawersintheTRXUracks.
Note
Thepowercablesmustbeinstalledinsteelconduitstoreducenoise.
Figure51Blockdiagram,ACandDCdistributionfromPowerSupplyUnits
TERMINALBOARD
POWER
SUPPL Y
POWER
SUPPL Y
POWER
SUPPL Y
SWITCH
ETHERNET
SWITCH
TERMINAL
BOARD
POWER
CONNECT ORP ANEL
TRXU
BACKPLANE
TRXU
FANS
POWERCABINET2
POWERCABINET1
TRXU1
POWERCABINET0
TRXU0
TRXU2
(CD016022-003)
230Vac
230Vac
Ethernet
+75Vdc
+12Vdc
+6Vdc
Table11ACmainstoPowerSupplyUnits
Cable
FromTo
U1
PowerSupplyUnit0TB0onrearsideofTRXU0
U2
PowerSupplyUnit1TB1onrearsideofTRXU1
U3
PowerSupplyUnit2TB2onrearsideofTRXU2
AllcablesareprovidedbyKongsbergMaritime.
331549/B
111
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