User's Manual

1027144–0001 Draft – Revision D.01
Installing indoor RT equipment 3–35
RT installation
The EIDU can be used on a tabletop or installed in a 19–inch
(48.3–centimeter) rack. With optional adapter brackets, the EIDU
can also be installed in a 23–inch (58.4–centimeter) rack.
Note: HNS does not provide a rack for EIDU installation.
If you are installing the EIDU in a rack, refer to the prerequisites,
safety guidelines, and instructions provided on pages 3–4
through 3–7.
EIDU power supply specifications and requirements are the same
as those for the IDU chassis. To connect power to the EIDU
chassis, refer to section 3.3.
The IDU–EIDU subsystem includes two types of fiber extender
modules (FEMs), which facilitate the fiber links between the IDU
and the EIDU:
• IDU FEMs – IDU FEMs provide the interface on the IDU
for the link to/from the EIDU (as shown in figure 3-22).
IDU FEMs are installed in SSI slots in the IDU chassis, as
shown in figure 3-23. IDU FEMs and SSIs may be installed
in the same chassis.
Figure 3-23 IDU FEM (installed in SSI slot)
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SSI
slots
IDU
IDU FEM
• EIDU FEM – The EIDU FEM provides the interface on the
EIDU for the fiber link to/from the IDU (as shown in figure
3-22).
The EIDU FEM is installed in the CCM slot of the EIDU
chassis, as shown in figure 3-24.
Figure 3-24 EIDU FEM (installed in CCM slot)
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CCM slot
EIDU
EIDU FEM
Mounting options
Rack mounting
Power supplies
Two type of FEMs