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Module LEDs
Once the PS-4 is installed, any power source to the left of the
Expansion Module is automatically disconnected.
Figure 3-8. Power Plug Cover & LEDs on Port Module
Each Port Module contains an ON-LINE LED and Power LED
indicator (see Figure 3-8). The ON-LINE LED is not functional until
the driver software is installed.
In addition to the ON-LINE and Power LEDs, the MIM-1 also
contains a LINK LED. The LINK LED is not lit until the software
driver is installed, a CMX is connected and power is present.
The Power LED is lit when power is present in the Expansion
Modules. Refer to the appropriate driver software manual for details
concerning all other LEDs.
3-8
IBM Serial I/O 128P Expandable Subsystem Hardware Installation Manual
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