H3C S6520-42QF-EI, Installation Manual, Page: 13 / 53

6
Table 3 Distance requirements between the front and rear rack posts
Switch model Installation method
Minimum
distance Maximum
distance
•
S6520-42QF-EI
•
S6520-48S-EI
•
S6520-52QF-EI
Using mounting brackets and short
slide rails (supplied with the switch)
401 mm (15.79 in) 654 mm (25.75 in)
Using mounting brackets and long
slide rails (optional)
621 mm (24.45 in) 874 mm (34.41 in)
Attaching the mounting brackets, chassis rails, and
grounding cable to the chassis
The switch has two mounting positions for mounting brackets: network port-side mounting position
and power module-side mounting position.
The switch has one primary grounding point (with a grounding sign) and two auxiliary grounding
points. Use the primary grounding point whenever possible. If the primary grounding point fails or is
not suitable for the installation site, use one of the auxiliary grounding points.
Figure 5 Mounting bracket installation positions and grounding points
(1) Auxiliary grounding point 2 (2) Power module-side mounting position for mounting brackets
(3) Primary grounding point (4) Auxiliary grounding point 1
(5) Network port-side mounting position for mounting brackets
Attaching the mounting brackets and chassis rails to the chassis
1.
Align the mounting brackets with the screw holes in the power module-side mounting position
(see
Figure 6 ) or network port-side mounting position (see Figure 7 ).
2.
Use M4 screws (supplied with the switch) to attach the mounting brackets to the chassis.
3.
Align the chassis rails with the mounting holes in the chassis:
{
If the mounting brackets are in the power module-side mounting position, align the chassis
rails with the screw holes at the front of the side panels (see
Figure 6 ).
{
If the mounting brackets are in the network port-side mounting position, align the chassis
rails with the screw holes at the rear of the side panels (see
Figure 7 ).
4.
Use M4 screws (supplied with the switch) to attach the chassis rails to the chassis.