User Guide

52
F
F
o
o
r
r
t
t
r
r
e
e
s
s
s
s
9
9
1
1
0
0
0
0
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
Open
A
1
1
.
.
7
7
S
S
e
e
r
r
v
v
e
e
r
r
R
R
a
a
c
c
k
k
I
I
n
n
s
s
t
t
a
a
l
l
l
l
a
a
t
t
i
i
o
o
n
n
(
(
O
O
p
p
t
t
i
i
o
o
n
n
a
a
l
l
)
)
1.7.1 Vertical mounting hole pattern
The four vertical rails of a rack contain mounting holes arranged in a manner shown in this figure.
4th U
3rd
2nd
1st
3rd U
2nd U
1st U