IDT82P2816BB IDT, Integrated Device Technology Inc, IDT82P2816BB Datasheet - Page 49

• Manufacturer Part Number: IDT82P2816BB
• Description: IC LIU T1/J1/E1 16+1CH 416-PBGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82P2816BB

• Function: Line Interface Unit (LIU)
• Interface: E1, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 1.8V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: *
• Includes: Defect and Alarm Detection, Driver Over-Current Detection and Protection, LLOS Detection, PRBSARB / IB Detection and Generation
• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Power (watts): -
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant
• Other names: 82P2816BB

3.5.8
3.5.8.1 Analog Loopback
stream to be transmitted on the TTIPn/TRINGn pins is internally looped
to the RTIPn/RRINGn pins.
Functional Description
IDT82P2816
There are four kinds of loopback:
• Analog Loopback
• Remote Loopback
• Digital Loopback
• Dual Loopback
Refer to Figure-1 for loopback location.
Analog Loopback is enabled by the ALP bit (b0, LOOP,...). The data
LOOPBACK
Loopback
Analog
LLOS detection
Figure-28 Priority Of Diagnostic Facilities During Analog Loopback
AIS generation
AIS generation
X
X
16(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
49
Pattern generation
output to the line side, while the data stream received from the line side
is covered by the Analog Loopback data.
Digital Loopback and Remote Loopback) are disabled.
receive path is: pattern generation > looped data. AIS generation is
disabled in both the receive path and the transmit path. Refer to Figure-
28.
BPV/CV, EXZ,
AIS, pattern
In Analog Loopback mode, the data stream to be transmitted is still
Anytime when Analog Loopback is set, the other loopbacks (i.e.,
In Analog Loopback, the priority of the diagnostic facilities in the
detection
SLOS, AIS, pattern
Pattern generation
BPV/CV, EXZ,
detection
February 6, 2009
Rx path
Tx path