AT&T Classic Mail Design Package 1.6 Manual de usuario Pagina 32

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Equipment Physical Design Standards ATT-TP-76200, Issue 19
AT&T Services, Inc. June 2014
Minimum Operating Voltage
Specify the minimum voltage at which the equipment remains fully operational and verify
the equipment will recover to a fully operational state after losing power.
Current Drains
7.4.1 List 1 Current Drain
The List 1 current drain, for a maximum configuration of cards and shelves, shall be
provided in amperes on the appropriate ESP form. List 1 drain is the average busy-
hour current at normal voltage and operating conditions.
7.4.2 List 2 Current Drain
The List 2 current drain, for a maximum configuration of cards and shelves, shall be
provided in amperes on the appropriate ESP form. List 2 drain is the peak current during
emergency operating limits of the EUT and with normal operating conditions (no short
circuits or other malfunctions).
Overvoltage Requirements
Telecommunications load equipment shall not be permanently damaged or permanently
have its performance degraded when an input voltage of correct polarity, with a value
between 0 V and the maximum voltage level for each nominal voltage plant specified in
Tables 1 of ATIS-0600315. is applied for any period of time.
Equipment shall operate properly when exposed to steady state overvoltage conditions,
shall comply with the conformance and test results shall be recorded in a test report as
described in ATIS-0600315.
Overvoltage Transient Requirement
Equipment shall operate properly when exposed to an overvoltage transient condition ,
shall comply with the conformance criteria and test results shall be recorded in a test
report as described in ATIS-0600315.
Protective Device Operation Transient
Equipment shall operate properly when exposed to transient conditions, shall comply with
the conformance criteria and test results shall be recorded in a test report as described
in ATIS-0600315. Testing methods shall be utilized to ensure prevention of malfunction
or damage.
Electrical Noise Requirements
7.8.1 Noise immunity
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