Comtech EF Data SDM-9220 - Manual (Page 61)

Hardware Installation
Memotec Inc. 4-19
2. Ensure that the SDM-9220/9230 unit is securely placed on a hard, flat surface, with
the port connectors facing you.
3. Turn the power switch OFF by pushing it to 0 , and unplug the power cord from the
power supply.
WARNING: To avoid electrical shock and damage to the unit, make sure that the
unit is disconnected from its power source before you access any of its internal
components. Use ESD procedure at all times.
You do not need to disconnect any cables that may be connected to the data (WAN/
user), LAN or console ports, or to other interface cards that may be already installed.
4. Select an empty interface card slot, labelled SLOT 1 , SLOT 2 and SLOT 3 (SDM-
9230 only) on the rear wall of the unit chassis.
5. Remove the metal faceplate from the slot you have selected:
a. Using a small, non-magnetized Phillips screwdriver, loosen the 2 captive screws
that hold the faceplate in place behind the slot cutout on the rear wall of the
chassis.
b. Slide the faceplate out from the chassis wall, and set it aside.
Important:
Keep the faceplate for possible reuse at a later time. To limit
electromagnetic interference and ensure optimum ventilation inside the unit chassis,
there should be no large openings on the rear panel. If you decide to remove an
interface card at a later time, you will need to replace the faceplate for that slot.
Figure 4-6: Location of Interface Cards in the SDM-9220/9230 Slots
Slot 1 Slot 2
Slot 3 (on SDM-9230 only)