MSM100U Module Converter/Extender
8
7 - Installation
Slot assignment
MSM100U module may be installed in any of the slots marked 1 to 12,
However by installing modules systematically next to each other (from left to right) it will
make it easier to install additional modules in the future allowing clear access to the slots.
Installation of Modules
All MetroStar™ modules are hot swappable however it is recommended – whenever
operationally acceptable, to install a module (or swap an already installed module) while
the system is powered OFF.
All modules are equipped with two self-clinching screws – always use BOTH of them for
safe insertion and removal of modules into/from the system.
To install a module in a vacant slot:remove the blank panel covering the slot using a
crosshead screwdriver. Hold the module vertically with one hand by the side facets of the
metal frame of the module. Do not touch the PCB (printed circuit board) or any of the
components with your hand. The frame is asymmetrical: its bottom end rectangular while
its other side has a diagonally “cut” edge – make sure this side is up. Align both upper and
lower edges of the PCB with the lower and upper Nylon guides of the slot and gently glide
the module into the slot, applying only a small pressure. If correctly positioned and
aligned, it should allow the module all the way in. At the final stage (2-3 mm short of full
insertion) you will experience a slightly higher resistance – apply a higher pressure with
your finger on the panel of the module till you feel it “clicks in” and its panel is flush with
the surface of the chassis. At this point, if the MetroStar™ is powered ON the PWR
LED (left-upper side of the module or any corresponding LEDs on the PMM) will light. If
not lit, ensure that unit is powered UP; if still not lit – remove the module and re-insert. Is
problem persists; troubleshoot by inserting same module in a different slot and/or another
module in the suspected slot. Fasten both self-clinching screws using your fingers by
turning them clockwise, while doing that an increasing resistance indicates that the screw
is well aligned with its nut. Finally, using a crosshead screwdriver fasten both screws
(normally no more than one full turn will be required). Make sure not to apply excess
power.
To Swap a module:Unfasten the 2 screws using a cross-head screwdriver then continue
by turning them with your fingers counter-clockwise till the head of the screw “pops out”.
Hold both screws with fingers of BOTH hands and pull the module out. Ensure applying
balanced force at both screws to maintain vertical position throughout the process,
although it might be necessary to slightly tilt the module at the very first mm. Continue as
above to insert the new module. If you choose to leave the slot vacant, always close it with
a blank panel.
Warning: Do not INSTALL a module into a slot with already attached F/O
cabling. Connect the F/O cables to the module ports only after having verified
that the module is well inserted and its Power LED is lit.
Conversely, DISCONNECT the F/O cabling from the module ports before
replacing it. Non-compliance with the above procedures may cause module’s
malfunction.
