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When using the CCU-78F/25M distribution unit
The CCU-78F/25M is available as a separately-sold accessory.
This unit is a terminal block that enables the COM-8(PCI) or COM-
4(PCI) installed on your computer to connect to an external device.
This unit offers the following features:
- Easy connection between the interface board and the external
device.
- The unit can be installed on the DIN rail. (The DIN rail adapter
is additionally required)
- Connection of an external power source enables power to be
output from the 25-pin D-SUB connector.
Figure 4.13. Connection Procedure
1. Use the special-purpose cable (purchased separately) to connect
the interface board to the distribution unit.
2. Check the connections on the distribution unit and use RS-232C
cables to connect the external devices.
Figure 4.14. Interface Connector Pin Assignment
COM-2(PCI), COM-4(PCI), COM-8(PCI)
External Connection
45
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