82V2082PF IDT, Integrated Device Technology Inc, 82V2082PF Datasheet - Page 34
82V2082PF
Manufacturer Part Number
82V2082PF
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82V2082PF.pdf
(88 pages)
Specifications of 82V2082PF
Number Of Transceivers
1
Screening Level
Industrial
Mounting
Surface Mount
Package Type
TQFP
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Not Compliant
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3.6.2
the Clock & Data Recovery unit is enabled. The status of AIS detection is
reflected in the AIS_S bit (STAT0, 16H...). In T1/J1 applications, the criteria
for declaring/clearing AIS detection are in compliance with the ANSI
Table-19 AIS Condition
FUNCTIONAL DESCRIPTION
IDT82V2082
detected
cleared
The Alarm Indication Signal can be detected by the IDT82V2082 when
AIS
AIS
AIS DETECTION
Less than 3 zeros contained in each of two consecutive
512-bit streams are received
3 or more zeros contained in each of two consecutive
512-bit streams are received
(LAC bit is set to ‘0’ by default)
ITU G.775 for E1
DUAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
Less than 3 zeros contained in a 512-bit
stream are received
3 or more zeros contained in a 512-bit
stream are received
(LAC bit is set to ‘1’)
ETSI 300233 for E1
34
T1.231. In E1 applications, the criteria for declaring/clearing AIS detection
comply with the ITU G.775 or the ETSI 300233, as selected by the LAC bit
(MAINT0, 0CH...).
Declaring/Clearing.
Table-19
Less than 9 zeros contained in an 8192-bit stream
(a ones density of 99.9% over a period of 5.3ms)
9 or more zeros contained in an 8192-bit stream
are received
summarizes different criteria for AIS detection
ANSI T1.231 for T1/J1
May 4, 2009
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