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MPCMM0002 CMM—Front Panel
Intel NetStructure
®
MPCMM0002 Chassis Management Module
Hardware TPS July 2007
50 Order Number: 309247-004US
Telco alarm inputs from multiple connectors are wired parallel to each other. The
absence or failure of one connection will not affect the ability to recognize an input from
the other connection.
Note: The CMM input signals use optocouplers on the reset signals to provide full electrical
isolation from the input signals.
Figure 25. Failure Scenario with Dual Telco Alarm Connectors
CMM 2CMM 1
Input Input
Input Input
MxxReset+
No Real Effect
MxxReset-
Failure or Removal
MxxReset+
MxxReset-
Note: MxxReset=
MajReset or MinReset
CMM 2CMM 1
Input Input
Input Input
MxxReset+
No Real Effect
MxxReset-
Failure or Removal
MxxReset+
MxxReset-
CMM 2CMM 1
Input Input
Input Input
MxxReset+
No Real Effect
MxxReset-
Failure or Removal
MxxReset+
MxxReset-
Note: MxxReset=
MajReset or MinReset
Figure 26. Parallel Inputs to Telco Alarm Connectors
CMM 2CMM 1
Input Input
Input Input
MxxReset+
No Real Effect
MxxReset-
Failure or Removal
MxxReset+
MxxReset-
CMM 2CMM 1
Input Input
Input Input
MxxReset+
No Real Effect
MxxReset-
Failure or Removal
MxxReset+
MxxReset-