JUMO variTRON 300 Installation Instructions Manual page 55

2 Mounting
Installation of the central processing unit 705003
(A) (A1)
(A2)
Process:
1. Mount the central processing unit (A) on the DIN rail from above (A1).
2. Pivot the central processing unit (A) downwards until it snaps into place (A2).
NOTE!
If necessary, activate the terminating resistors of the RS485 interface before installation (see chapter
"Electrical connection")!
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