AudioCodes IPmedia 3000, Руководство по установке

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Installation Manual 34 Document #: LTRT-94704
Mediant 3000 & IPmedia 3000
2.7 Alarm, Status and Synchronization Blade
The Alarm, Status and Synchronization (SA/M3K) blade is a 6U blade, which is housed in
Slot 2 on the chassis' front panel. This blade performs the following functions:
„ Monitors all midplane voltages (3.3V, 5V, +12V, -12V).
„ Monitors proper operation of all power supplies.
„ Monitors and controls chassis temperature by changing the fans’ speed according to
the chassis' temperature.
„ Controls the state of alarm closures.
„ Controls the front-panel chassis LEDs.
„ Detects the state of the front chassis' push-button.
„
Detects the availability of the power at the inlet leads.
„ Provides the clock synchronization for the I/O blades
„ Interfaces with the Building Integrated Timing Source (BITS)/SETS
The blade interconnects with all chassis elements. Alarms detected are transmitted through
the midplane to the various LED indicators on the chassis and blades, as well as to the
Alarm Terminal Closures on the PEM module.
Notes:
•
BITS/SETS functionality is applicable only to Mediant 3000.
•
The SA/M3K blade is not cPCI compliant. However, the blade is
protected using code keys on the midplane.
The SA/M3K blade provides LEDs on its front panel, as displayed in the following figure.
Figure 2-17: Alarm, Status and Synchronization Blade (SA/M3K)