NEC EXPRESS5800/140He Service Manual page 62

To connect a SCSI cage to on-board SCSI controller in I/O board
5.25-inch
10
Device
5.25-inch
Device
Additional
SCSI BP
(5HDD)
SCSI BP
(5HDD)
FDD
CD-R
OM
9
CD/FD
board
Processor board
Memory board
Memory board (Option)
Memory board (Option)
Memory board (Option)
Terminator
5
8
7
Main Board
Connect
board
Connect
board
-
46
4
2
PCI SCSI
（Option）
Power Module
Power BP
Power Module
Power Module
Power Module
(Option)
Open Sensor Switch
3
-
6
1
A-BMC
Board
IO board
AC
AC
AC
AC