Installing the extension module
CX2550-0020
12
Version: 1.1
4
Installing the extension module
Note
Electrical voltage
Having the power supply switched on during the installation may damage the device.
Switch off the power supply during the installation.
This section contains information on:
• installing the extension module for the basic CX20x0 CPU module;
• interlocking the individual modules with the aid of bar clips and
• installing the extension module on the mounting rail, together with the basic CPU module.
4.1
Installing the extension module at the CX20x0 system
Note
Damage to the contacts
Incorrect installation may result in damage to the contacts of the extension modules.
The extension modules may only be attached on the right-hand side of the basic CPU mod-
ule.
A maximum of two extension modules can be attached to the basic CPU module via the internal PCI
Express bus. In delivery state the extension module is equipped with a protective cap for the bus connector.
Before continuing, connect the extension module to the basic CPU module.
Prerequisites for this step:
• Exit the software and shut down the CX20x0 hardware configuration.
• Switch off the power supply.
Install the extension module as follows:
1. Put a screwdriver into the recess on the short side of the protective cap and lever it off.
2. Remove the protective cap to expose the bus connector.
3. If a power supply unit is already connected, remove it from the basic CPU module.
Summary of Contents for CX2550-0020
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