ADLINK Technology COM Express cExpress-BT2, Руководство пользователя

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cExpress-BT2
Mechanical Information
79
9.3. Mounting Methods
There are several standard ways to mount the COM Express module with a thermal solution onto a carrier board.
In addition to the choice of 5 mm or 8mm board-to-board connectors, there is the choice of Top and Bottom
mounting. In Top mounting, the threaded standoffs are on the carrier board and the thermal solution is equipped
with through-hole standoffs. In Bottom mounting, the threaded standoffs are on the thermal solution and the carrier
board has through-hole standoffs.
Top Mounting
with 5 mm connectors
COM Express Module ~ 2 mm
M2.5 : 18 mm
with spring / washer
2 mm heatspreader with
9 mm through-hole standoffs
5 mm threaded standoff (DIP)
Carrier Board ~ 2 mm
COM Express Module ~ 2 mm
M2.5 : 18 mm
with spring / washer
2 mm heatspreader with
9 mm through-hole standoffs
8 mm threaded standoff (DIP)
Carrier Board ~ 2 mm
Top Mounting
with 8 mm connectors
COM Express Module ~ 2 mm
M2.5 : 16 mm
with spring / washer
2 mm heatspreader with
9 mm threaded standoffs
8 mm through hole standoff (SMT)
Carrier Board ~ 2 mm
COM Express Module ~ 2 mm
M2.5 : 14 mm
with spring / washer
2 mm heatspreader with
9 mm threaded standoffs
5 mm through hole standoff (SMT)
Carrier Board ~ 2 mm
Bottom Mounting
with 8 mm connectors
Bottom Mounting
with 5 mm connectors
Ø27
Ø50
M2.5
Ø55
Ø38
M2.5
Ø50
Ø27
Ø55
Ø27
Ø38
Figure 5: COM Express Mounting Methods