09/03
2-342
DC 3535/2240/1632, WC M24
16-399, 16-450
Initial issue
Status Indicator RAPs
16-399 DFE Not Detected
External controller is not connected or is not functioning.
Procedure
Switch the power off, then on. If the problem continues, check the connections at the MCU
PWB and the I/F PWB. Check that the DDI cables from the Network Controller (NC) to the IOT
are secured and are free from damage. Reinstall DFE software.
If this does not resolve the problem, perform the following checks in the sequence presented,
until the problem is resolved:
• Ensure that a live network cable is connected to the NC. Verify that the AC power connec-
tor is connected to the NC and that AC line voltage is present. If the voltage is not present,
go to the OF 1-4 RAP.
• Verify that the NC is functioning correctly. Refer to the NC service documentation.
• Switch the DDI cables from the NC to the IOT (switch both ends). If the problem changes,
replace the cables.
• Replace the VSEL PWB (PL 13.1).
• Replace the ESS PWB (PL 13.1).
• Replace the MCU PWB (PL 13.1).
If the problem persists, replace the Network Controller.
16-450 SMB Host Name
PC of the same host name is duplicated on a network.
Procedure
Switch power off then on. The problem continues.
YN
Return to service call procedures.
Change the host name.
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