Thinklogical MX48 Router Manual - Manual (Page 21)

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M X 4 8 R o u t e r P r o d u c t M a n u a l , R e v . F , D e c . 2 0 1 4 Page 17
Step 3
Once the module is completely seated, hand-tighten the thumbscrews.
Warning! Do not tighten the thumbscrews with a screwdriver.
5.2 How to Install or Replace a Controller Card
Note: When using a single Controller, the left Controller slot is always Primary.
Note: Replacing the Controller Card will interrupt service.
Step 1
Turn the thumbscrews counterclockwise until they disengage from the chassis. Pull the Controller Card
out using both black handles.
Step 2
Place the new module upright so that the ACTIVE LED is on the top. Grasp the module by the
handles or by the outer edge of the aluminum housing. The card should slide freely until it reaches
the backplane connector. At this point, use just enough force to firmly engage the card with the
mating connector.
Warning! If the module does not slide into the connector, do not force it! Damage may
occur. Remove the card and start over.
Step 3
Once the module is completely seated, hand-tighten the thumbscrews.
Warning! Do not tighten the thumbscrews with a screwdriver.
5.3 How to Replace a Fan Tray
The MX48 uses three DC fans to move air horizontally through the enclosure. Be sure not to block the
air vents on the front and rear of the unit, and leave
at least 2” of space on both sides.
Note: Be sure to leave adequate ventilation space on both sides of the units
(2”
minimum), especially if units (e.g. Extenders) are being stacked above or below the
MX48 Router.
Note: No shutdown is required prior to replacing the Fan Tray.
Step 1
Turn the four thumbscrews counterclockwise until they disengage from the chassis.
Step 2
Pull the Fan Tray module out using both black handles.
Step 3
Place the new module so that the aluminum housing is on the bottom. Hold the new Fan Tray by the
black handles and slide the aluminum housing into the black card guides.
Warning! Do not operate the unit without a Fan Tray installed for greater than 10
minutes.
Step 4
Hand-tighten the thumbscrews.
Warning! Do not tighten the thumbscrews with a screwdriver.