BES MDU12i, Modular Unit

Page: 7 / 41

DOC32 Page 7 of 41 Issue 2 30 NOV 17
2.0 Installation
Installation should be performed by a suitably competent person.
The MDU12i (iMDU)
is designed to be mounted in a 19” rack. The rear of the unit must be
supported within the rack. The unit is supplied with an inlet connector for the user and wiring
instructions. The unit has an earth stud at the rear of the unit and must be connected to
earth.
The unit ratings are shown at the rear of the unit. The unit must be protected by a suitably
rated 16A MCB or fuse.
The unit is supplied with 5 amp HRC fuses in each outlet fuse holder. The maximum rating
for each outlet is 10 amps provided a suitably rated HRC fuse is fitted in the front panel
mounted fuse holder.
Make all connections before applying power to the unit and switching on.
To ensure isolation, the illuminated front panel switch must be in the off position with the
green light extinguished. Disconnect from the supply before making or changing connections
to the IEC outlets or connected equipment.
Control card
The control card is designed to be hot swappable from the front panel as a security against
system failure or future upgrade. The main parts of the system are located on this card eg.
CPU, SMPS.
Control card change
Ensure the new card has the
‘keep outlet status enabled’ option set (enquire with the factory
if confirmation is required )
Undo the two hex head screws securing the card to the front panel and gently withdraw the
card.
Warning, at this point the outlets will remain live but the outlet status indication will
be lost!
The front panel mounted illuminated switch will remain lit at all times power is
supplied to the unit. Do not leave the unit with the card removed and do not insert anything
other than a control card into the aperture.
Insert the new card into the aperture and card guides. Push home until the front plate is
against the front panel. Fuse indication and all functions should reappear at this point.
Replace the hex head screws and tighten.