EMC Connectrix B Series Hardware Reference Manual page 41

Installation, Setup, and Login
Cable guides (pillars)
Cable guides (pillars) are provided with the ED-48000B, and can be
used to organize the port cables into logical groups, such as according
to port quads (sets of four neighboring ports). The cable guides do
not attach to the chassis (see Figure 5).
Cable pillars are not supported when using the FC4-32 or PB-48K-48
port blades because the cable count is too dense, leaving no room for
the cable pillars. Instead, you should use hook and loop tabs to group
cables for the FC4-32 or PB-48K-48 port blades.
scale: .50" = 1"
Cable guides (pillars) used to group cables
Figure 5
The cable guides serve to keep the cables evenly spaced and to hold
them away from the port blades, making blade replacement easier
and preventing the cables from bending to less than the minimum
bend radius.
CAUTION
!
Do not route the cables in front of the air exhaust vent, which is
located at the top of the port side of the chassis.
Arrange the cables so that the minimum bend radius is not
exceeded; for a 50-micron cable, the minimum bend radius is 2
inches under full tensile load and 1.2 inches with no tensile load.
Tie wraps are not recommended for optical cables because they are
easily overtightened and can break the optical cables.
41
Managing cables