Specifications

Section-4 Theory
November 11, 2013
4‐8
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4.4.4.4 PAInterfaceCard
ThePAinterfacecard(s)connectstheTCU,Predriverassembly,IPA (driver)andPAbackplaneboards.Theinterface
features40digitaloutputs/inputsand24analogoutputs/inputs.AfullypopulatedcabinetwillrequiretwoPA
interfacecards,onecardpereightPAmodules.ThePAinterfacecardsendsthe ON/OFFcommandstothe
PA
modulesandreceivesfaultinformationandstatusfromthem.
Figure4‐6showshowthePAinterfac e boards
connecttotheIPA(driver)andPAbackplanes.
Figure 4-6 PA Interface Card Connection to Backplane Boards
PA Interface
Board, A4A7
Rear VIew
PA Interface
Board, A4A8
Rear VIew
Predriver
Assembly
IPA
Backplane
PA
Backplane
PA
Backplane
PA
Backplane
PA
Backplane
AB
CD
AB
CD
A5
A6
A7
A8
A9
A12
Drive A
Drive B
50
50
J1
J5
J1
J1
J1
J2
J1
J1
BP 1
50
BP 2
50
BP 3
50
BP 4
50