Hardware Interface Description - KORE Telematics

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XT55/56 Hardware Interface Description Confidential / Released s 7.2 Mounting XT55/56 onto the application platform There are many ways to properly install XT55/56 in the host device. An efficient approach is to mount the XT55/56 PCB to a frame, plate, rack or chassis. When assembling the XT55/56 module plug the B2B connector to the mating header in your application with applying carefully pressure to that side opposite to the B2B connector (labeled with “XT_GPS”). Fasteners can be M1.6 or M1.8 screws plus suitable washers, circuit board spacers, or customized screws, clamps, or brackets. Screws must be inserted with the screw head on the bottom of the XT55/56 PCB. In addition, the board-to-board connection can also be utilized to achieve better support. Particular attention must be paid to the holes marked with an arrow in Figure 50. The two holes are close to other components of XT55/56 and care must be taken to avoid contacting them. For example, you can insert plastic screws and plastic washers, or fasteners small enough not to protrude beyond the mounting areas specified in Figure 51. In case you wish to connect the host device using the mounting hole enclosed by the dashed line it is strongly recommended to use a plastic dowel according to Figure 53. For ordering instructions refer to Table 39. Figure 52: Mounting holes on XT55/56 For proper grounding it is strongly recommended to use the ground plane on the back side in addition to the five GND pins of the board-to-board connector. To avoid short circuits ensure that the remaining sections of the XT55/56 PCB do not come into contact with the host device since there are a number of test points. Figure 50 shows the positions of all test points. To prevent mechanical damage, be careful not to force, bend or twist the module. Be sure it is positioned flat against the host device. All the information you need to install an antenna is summarized in Chapter 5. Note that the antenna pad on the bottom of the XT55/56 PCB must not be influenced by any other PCBs, components or by the housing of the host device. It needs to be surrounded by a restricted space as described in Chapter 5.1.2. XT55/56_hd_v02.06a Page 112 of 125 17.12.2004
XT55/56 Hardware Interface Description Confidential / Released s Figure 53: Recommended dowel XT55/56_hd_v02.06a Page 113 of 125 17.12.2004
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Hardware Interface Description - KORE Telematics

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