Alaxala AX6300S Series Instruction Manual page 196

5. Adding and Replacing Optional Modules
Figure 5-30 Removing a network interface unit (1)
(1) Screws
CAUTION
Step 4
Open the right and left levers of the network interface unit at the same time (the unit
comes out toward you about 15 mm).
Figure 5-31 Removing a network interface unit (2)
(1) Lever
NOTE
172
Loosen the screws completely. If the screws are not loose enough, the
network interface unit might be damaged when the levers are opened.
Use the levers so that the connectors on the optional module and the
Switch can be disengaged correctly. When moving a lever, move the
right and left levers slowly and at the same time without exerting
excessive force.