3.1 Mounting and Connections
249
7UM61 Manual
C53000-G1176-C127-3
3.1.2.4 Interface Modules
Replacing Inter-
face Modules
The interface modules are located on the B–CPU processor board ((1) in Figure 3-1
and 3-2). The following figure shows the PCB with location of the modules.
Figure 3-7 Processor board CPU with interface modules
Please note the following:
• Exchange of interface modules is possible only with panel flush mounting and
cubicle mounting devices as well as of mounting devices with detached or with no
operator panel.
Devices in surface mounting housings with double-level terminals can be changed
only in our manufacturing centre.
• Only interface modules can be used with which the device can be ordered from the
factory also in accordance with the order number (see also Appendix A.1).
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