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Attaching The Front Connector - Siemens S7-400 Installation Manual

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To plug in the front connector, follow the steps outlined below:
1. Hold the front connector horizontally and engage the front connector with the
coding key. After an audible click, the front connector will engage with the mount
and can be swung upwards.
2. Swing the front connector upwards. The two parts of the coding key will then be
separated.
3. Screw the front connector on.
Coding key
Figure 4-21

Attaching the Front Connector

S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
2
1
Wiring the S7-400
4-37

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