Version 7.0 41 Mediant 3000
Hardware Installation Manual 3. Physical Description
Item
#
Label Description
6 CRT, MJR, MNR, IN Alarm Terminal Block Closures: Contains four groups of
terminals for connecting external Telco alarm devices
according to Critical, Major, and Minor severities. Devices
can be controlled using Common, Normally Open method.
The IN connector is for Shelf (User-Defined) connections,
which are to be implemented in a future version.
7
SWAP RDY
N/A.
3.8.1.2 AC Power Supply Modules
The PS/AC/3K Power Supply module is an advanced-design, multi-output switching power
supply, providing AC primary input power configurations. The Power Supply modules are
located on the front panel and connect to the PEM modules (located on the rear panel)
through the chassis' backplane. The unit has a handle for easy removal and re-insertion,
under power (hot-swap capable).
Figure 3-20: AC Power Supply (PS/AC/3K) Module
Power for the device is typically supplied from redundant AC power feeds, whose input
voltage ranges from 100-240 VAC. The Power Supply modules function in an output
current, load-sharing configuration to provide necessary voltages and fail-safe operation to
the blades in the chassis.
Table 3-18: AC Power Supply (PS/AC/3K) Module Technical Specifications
Function Specification
Output
Output Power
300 watts maximum, continuous
Outputs (V1-V4)
+3.3 V at 40 A; +5 V at 40 A; +12 V at 5.5 A; -12 V at
1.5A
Controls and Signaling
TTL
General Characteristics
Efficiency
75% at full load
Dimensions
4 x 12.7 x 28 cm (1.6 x 5 x 11 inch) for a 6.8 watt/inch3
power density output
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