INSTALLING BOARDS AND CABLING
5 21/1531-ASP11301 Uen B3 2016-02-17
Note: Secure all boards with the screws located in the extractor. Use screw driver with
Torx T8.
2.1 ASU, ASU-II AND ASU LITE
The ASU’s has a disk bay for 2 separate HDD (Hard disk drives) or SSD (Solid state
drives). They are located behind a cover in the front.
Note: SW RAID 1 is supported on Mitel ASU and ASU-II.
Close to the LED near the LAN-ports, there is a hole for performing reset/ software
shout down.
The ASU’s has a battery for real time clock. This battery is located just behind the board
for the SATA drives connection.
Note: Due to the high weight of these boards, handle them with care, and hold the
board only in the front. Also, be careful when inserting it into the subrack. Do not
force it to avoid any bending of the board.
2.2 MGU AND MGU2
The MGU board has a 40mm front when used in MX-ONE Classic, MX-ONE Lite, and
in MX-ONE 1U chassis.
The MGU2 board has a 20mm front and can be used in any chassis.
Close to the LED there is a hole for performing reset.
For more info see description, Media Gateway Unit, MGU, 1/1551-ANF90136.
2.3 EMPTY BOARD POSITIONS
If any empty positions are left in a chassis after mounting all boards, these empty slots
have to be filled with Dummy-fronts to fulfill the EMC demands. See 2.4 Dummy Front
on page 5.
2.4 DUMMY FRONT
This section describes the dummy front in 19" cabinets.
Dummy fronts are installed at all empty positions in the 19" submags. New boards can
be installed at these positions. Remove the dummy front at the position were the new
board is to be installed and insert the new board.
TLU83 ROF 137 6305/3 20mm 8/12 Analog trunk line (loop start, ground start,
CLI with DTMF)
TMU ROF 137 5335/x 20mm 32 Tone and Multi part Unit. DTMF
Board Product
number
Building
height
Time
Slots
used
Remarks
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