Siemens S7-300 Installation And Operating Manual page 111

Step
2. b
3.
4.
Result: The cable guide is safely installed in the front connector in compliance with safety
requirements of explosion protection.
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
Graphic
2
3
Description
Cage-clamp terminals:
Use the special key included instead of the screwdriver to
install the cable guide.
②
Cable guide cage-clamp terminals
③
Auxiliary wedge cage-clamp terminal
Wire the process lines and route these to the bottom.
Do not forget to install the enclosed strain-relief for the wire
harnesses.
Digital modules
8.4 SM 326; DI 8 x NAMUR
111