IOD300
No response is received from the System Monitor (NT8D22) after
sending a status request message.
ACTION: Check that the ribbon cable, from the master system
monitor connector is fully inserted into the proper socket of the SDI
paddleboard. Check that the SDI paddleboard switch settings
correspond to the configuration record. Refer to the administration
put/output guide. Use LD 22 PRT CFN to check the configuration
record and go to the Circuit Pack and Testing NTP to check for switch
settings. If the fault does not clear, replace the System Monitor or SDI
paddleboard, one at a time, following the steps in the Hardware
replacement guide. After replacing each device verify that the fault is
cleared.
seeing that it's muliple switch's after an upgrade I would check for a patch
It's only dialtone-VZ