System Description

System Description and Installation Manual for MXS ICD10004-01

 The MXS requires a 2.0°C/Watt heat sink at full power above 40°C ambient. Actual heat sink needs are

dependent on temperature of operating environment and power load.

 MXS is designed in such a way that its case conducts thermal load to the aircraft frame. It can be firmly mounted

directly to the aircraft or to other components within the aircraft.

 MXS should be mounted with the non-labeled side facing the heat sink.

 If inadequate heat sinking is provided, the MXS will not transmit while internal temperature limits are exceeded.

3. Mounting the MXS Unit

 The mounting holes in the MXS are found on the top of the unit. The two holes closer to the Main Connector are

24 mm in depth at the mounting points, while the two further away are 20 mm depth at the mounting points. All

four holes are 3.35 mm in diameter and accept 4-40 (or M3 x .05) machine screws.

 The machine screws listed in Table 0-1Table 3-1 represent an approximate starting point in a search for the

correct screw for your custom installation.

 Sagetech recommends applying Loctite 242 Threadlocker to the machine screw threads or using lock washers or

nuts.

Table 0-1 Common mounting parts/vendors

Quantity

Required



Description Vendor VendorPN

4 11/4"PanHead4‐40MachineScrew McMaster‐Carr 90279A117

8 Washers McMaster‐Carr 98029A024

4 LockNuts McMaster‐Carr 90631A005

3. Route power cables and Host Computer to the MXS

Figure 0-2 51-Pin Micro D-Sub Type Female Main Connector

The Main Connector carries power as well as serial and Ethernet communications to the host computer. MXS’s Main

Connector is a 51-pin Micro D-Sub type female connector. Figure 0-2Figure 3-2 shows the Main Connector pin

assignment orientation. Table 0-2Table 3-2 provides the Main Connector manufacturer’s part number.