Toa SX-2000 Series Installation - Manual (Page 55)

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2.2.3. Changing the type of control outputs (SX-2100AI only)
All the contact outputs are of normally open type when shipped from the factory.
Each output can be converted into normally closed type by changing the jumper setting on the cIo circuit
board.
Notes
• Turn off the power before starting this work.
• To avoid damage from static electricity, never touch the terminals themselves or any of the parts on the circuit
board.
Step 1. Detach the SX-2100AI's top panel.
Note
Note the specific shapes of the different screws.
top panel: m3 x 6 flat head machine screw (2 pieces)
Side panel: m3 x 6 binding head machine screw (4 pieces)
Top panel
CIO circuit board
SX-2100AI
this change should only be performed by a qualified professional
electrician. If users open the unit case or modify the unit, this may
cause fire or electric shock.
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