Application Guide

SAG582140001 System Application Guide
Issue AN, June 4, 2014 Spec. No. 582140001 (Model 801
NLDB, 801NLEB, 801NL-B)
Page 102 of 115
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COMPONENT
MCA IDENTIFICATION NUMBER
MCA NUMBERING
SCHEME (note
that each line
shown below is
separated with a
dash in the MCA
display)
NOTES EXAMPLE
MCA I/O
Circuit Card
Bay #
Card Position #
w/in Bay
Primary Bay is #1, other bays are numbered
consecutively, following the bay-to-bay cabling
scheme.
Card #1 = left slot,
Card #7 = right slot.
Primary Bay, I/O Card
in First Slot
1-1
Second Bay, I/O Card
in Third Slot
2-3
Fifth Bay, I/O Card in
Seventh Slot
5-7
Distribution
Bay’s
Distribution
Bus
Bay #
Distribution Bus #
w/in Bay (A or B
Designation)
Primary Power Bay is #1, other bays are
numbered consecutively, following the bay-to-
bay cabling scheme.
Distribution Bus #1 = Top Left,
Distribution Bus #2 = Top Right,
Distribution Bus #3 = Bottom Left,
Distribution Bus #4 = Bottom Right,
A or B as set by jumper on MCA Distribution
Bus Monitoring Circuit Card.
Fifth Bay, Top Left
Bus, Set for B
Designation
5-1B
Sixth Bay, Top Right
Bus, Set for B
Designation
6-2B
Seventh Bay, Bottom
Left Bus, Set for B
Designation
7-3B
Seventh Bay, Bottom
Right Bus, Designation
Not Set
7-4
Distribution
Bay’s
Distribution
Device
Type
Bay #
Distribution Point #
w/in Bay
Type = Breaker or Fuse or MISC 50-73.
Primary Bay is #1, other bays are numbered
consecutively, following the bay-to-bay cabling
scheme.
Distribution Point =
1-12 (bottom - top, Top Left Bus, Bus #1).
13-24 (top - bottom, Top Right Bus, Bus #2).
25-36 (bottom - top, Bottom Left Bus, Bus #3).
37-48 (top - bottom, Bottom Right Bus, Bus #4).
Note that distribution components may take
more than one mounting position, designation
number is the left most mounting position.
Note: The optional bullet-device fuse panel is
displayed as MISC 50-73.
Fifth Bay, Circuit
Breaker Mounted in
Position One, Bus 1
Set for A Designation
Breaker 5-01A
Sixth Bay, Fuse
Mounted in Position
Thirteen, Bus 2
Designation Not Set
Fuse 6-13