Alcatel-Lucent 9500 MXC, User Manual, Page: 287 / 916

9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. III-3-5
Installing an INU
To install an INU:
1. Fit the rack mounting ears to the chassis with the grounding stud to left or
right side for the most direct ground wire path to the rack ground bar.
2. Locate the INU/INUe in the equipment rack and secure it using four No.12
Phillips dome-head screws from the IDC installation kit.
3. Ground the INU/INUe from the grounding stud to the rack/frame ground bar
using a length of 4 mm
2
(AWG 12) green PVC insulated stranded copper wire
with a suitably sized ground lug at each end (supplied by the installer).
4. If the equipment rack/frame requires grounding, use 16 mm
2
(AWG 6) wire
from its ground bar to the station ground.
5. Install the plug-ins in their assigned slot positions, and check that their front
panels are flush-fitted (not protruding) and held secure by their fasteners.
Ensure unused slots are covered by blanking panels. Refer to Plug-in Slot
Configuration on page 3-8, and Plug-in Installation Requirements on
Power Supply Compliance and
Loading The dc power supply must be UL or IEC compliant for a -48 Vdc SELV output
(60 Vdc maximum).
Check to ensure that connection of a 9500 MXC system to an existing dc
supply does not overload the supply, circuit protection devices and wiring.
Where a new dc power supply is to be installed for a 9500 MXC Node, the
power supply must be rated to supply:
• 12.5 A for the INU
• 25 A for the INUe
Grounding The INU must be grounded to the station or master ground, which must be the
same ground as used for the dc power supply. Normally this is achieved by
grounding the INU to the ground bar in its equipment rack or frame. This bar
is most often located to one side of the rack or at rack top or bottom. In turn,
the ground bar is grounded to the station ground.
Function/Requirement Details
Do not assume that an existing rack or mounting frame is correctly grounded.
Always check the integrity of the ground connections, which must include a check
through to the master ground for the station, which should be located at the point
of cable entry to the equipment building.