Siemens SIMATIC NET SINAUT ST7 System Manual page 265

Station control system
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Installing and putting a SINAUT modem into operation
6.5 LTOP line transformer with overvoltage protection
Attachment to a 2-wire end point
2-wire end point over an LTOP 1
2-wire end point over an LTOP2
1
2
Attachment with a 4-wire end point or 2 x 2-wire end point
4-wire end point over an LTOP2
2 x 2-wire end point over an LTOP2
1
2
1
2
SINAUT ST7 Station control system - System Manual
265
System Manual, 05/2007, C79000-G8976-C178-06

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