National Instruments Fieldpoint CFP-2220 - Manual (Page 16)

cFP-2200/2210/2220 16 ni.com
Figure 21. Installing a Connector Block on the Backplane
4. Using a number 2 Phillips screwdriver with a shank of at least 64 mm
(2.5 in.) length, tighten the captive screws to 1.1 N · m (10 lb · in.) of
torque.
5. Repeat this procedure to install additional connector blocks on the
backplane.