ZL30226/GA ZARLINK [Zarlink Semiconductor Inc], ZL30226/GA Datasheet - Page 136
ZL30226/GA
Manufacturer Part Number
ZL30226/GA
Description
4/8/16 Port IMA/TC PHY Device for xDSL
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.ZL30226GA.pdf
(141 pages)
- Current page: 136 of 141
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QoS
RAI
RDI
RFI
SAR
SCCI
SOC
TC
TRL
TRLCR
UTOPIA
UNI
10.0
Asynchronous Transfer Mode Adaptation Layer (AAL) - Standardized protocols used to translate higher layer
services from multiple applications into the size and format of an ATM cell. Individual protocols are indexed as per
the examples below:
Active - This is a link state indicating the link is capable of passing ATM Layer cells in the specified direction.
Aligned - IMA Frames are said to be aligned if they are transmitted simultaneously.
Asynchronous
1. Not synchronous; not periodic.
2. The temporal property of being sourced from independent timing references, having different frequencies and
3. In telecommunications, data which is not synchronized to the public network clock.
4. The condition or state of being unable to determine exactly when an event will transpire prior to its occurrence.
Asynchronous Transfer Mode (ATM) - A method of organizing information to be transferred into fixed-length cells;
asynchronous in the sense that the recurrence of cells containing information from an individual user is not neces-
sarily periodic.
Note: Although ATM cells are transmitted synchronously to maintain the clock between sender and receiver, the sender transmits data
cells on an as available basis and transmits empty cells when idle. The sender is not limited to transmitting data every Nth cell.
Blocked - The Blocked State is a Group State indicating that the Group has been inhibited.
Blocking - Blocking is a transitional state that allows graceful transition into the Unusable State without loss of ATM
layer cells.
no fixed phase relationship
AAL0 - Native ATM cell transmission proprietary protocol featuring 5-byte header and 48-byte user pay-
load.
AAL1 - Used for the transport of constant bit rate, time-dependent traffic (e.g., voice, video); requires trans-
fer of timing information between source and destination; maximum of 47-bytes of user data permitted in
payload as an additional header byte is required to provide sequencing information.
AAL5 - Usually used for the transport of variable bit rate, delay-tolerant data traffic and signalling which
requires little sequencing or error-detection support.
ATM Glossary
Quality of Service
Remote Alarm Indication
Remote Defect Indication
Remote Failure Indication
Segmentation and Reassembly
Status and Control Change Indication
Start of Cell
Transmission Convergence
Timing Reference Link
Timing Reference Link Cell Rate
Universal Test and Operations Physical Interface for ATM
User Network Interface
Zarlink Semiconductor Inc.
ZL30226/7/8
136
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