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25Chapter 2 Installation
Do not confuse this rack number with the Device Number used by a Remote I/O
Scanner. Rack number refers to a rack’s position within a remote drop. A Device
Number is a Remote I/O Scanner’s assigned ID on the Genius bus. These two
numbers are not related. The following example shows rack numbering for three
remote drops. The Remote I/O Scanners for those remote drops are configured to use
Device Numbers 7, 8, and 9.
Do not select duplicate rack numbers in the same remote drop. After selecting the rack
number, record it on the inside of the Power Supply hinged door.
a44879 RACK 3
P
S
B
R
M
P
S
A
S
C
N
N
E
R
RACK 1
P
S
B
R
M
B
T
M
RACK 2
P
S
B
R
M
RACK 0
P
S
A
S
C
N
N
E
R
RACK 0
P
S
A
S
C
N
N
E
R
RACK 1
P
S
B
R
M
B
T
M
RACK 2
P
S
B
R
M
RACK 0
DEVICE
#9
GENIUS
BUS
GENIUS
BUS
DEVICE
#8
GENIUS
BUS
DEVICE
#7
RACK CONNECTION CABLE
RACK CONNECTION CABLE