Siemens PC 870 Specifications download pdf (Page 13)

Unpacking and connecting the device

2.7 Description decentralized design

Panel PC 870 V2

QuickStart, Edition 03/2004, A5E00299738

2-7

2.7 Description decentralized design

In the decentralized design, the control unit and computer unit are supplied as two separate

devices. The control unit and the computer unit are installed in separate locations.

USB cable

Interconnecting

cable

Receiver

Computing unit

Direct key module

(optional)

Transmitter

(fitted)

Power supply

cable

Operating Unit

Figure 2-3 Decentralized design overview

2.8 Connecting a decentralized design

Principle

In the decentralized design, the control unit and computer unit are in separate locations.

Components

The following illustration shows as an example of a 15" control unit on which a mounting

plate is attached to the back side. The remote module, also called receiver, and the optional

direct key module are attached to the mounting plate. The remote module has a AC

120/230V power supply. The remote module is also available with a DC 24 V power supply.

Note

Make sure that the cable strain reliefs for the connection cable at the operating unit and

computer unit are mounted properly, especially if the devices are installed at a slant.

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Siemens PC 870 Specifications Page 13