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C141-E035-02EN 4 - 27
Figure 4.27 SCSI cable termination
(2) Power cable
IDDs must be star-connected to the DC power supply (one to one connection) to reduce the
influence of load variations.
(3) DC ground
The DC ground cable must always be connected to the IDD because no fasten terminal
dedicated to SG is provided with the IDD. Therefore, when SG and FG are connected in the
system, it is necessary to connect SG and FG at the power supply or to connect SG of the
power supply to FG of the system.
(4) External operator panel
The external operator panel is installed only when required for the system. When connection
is not required, leave open the following pins in the external operator panel connector of the
IDD : Pins 15, 16 and 01 pins 10 through 08 in CN7 and pins A1 through A12 in CN1.