VEGA Phoenix PSI Data Fax Modem - Manual (Page 24)

PSI-DATA/FAX-MODEM/RS232
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2.1.2 Mounting
• Mount the modem on a 35 mm (1.378 in.) EN DIN rail (see Figure 2-1).
Figure 2-1 Mounting
Only mount and remove modules when the power supply is disconnected.
The DIN rail must be connected to PE to ensure reliable operation.
6 9 2 3 A 0 3 1