参数资料
型号: IDT82V2608
厂商: Integrated Device Technology, Inc.
英文描述: INVERSE MULTIPLEXING FOR ATM
中文描述: 反向复用的ATM
文件页数: 19/98页
文件大小: 398K
代理商: IDT82V2608
INTERFACE
19
December 4, 2006
IDT82V2608
Inverse Multiplexing for ATM
3.2
LINE INTERFACE
3.2.1
LINE INTERFACE WORK MODES
For different framers, the line interface can be configured to different
Work Mode to adapt to different data format.
Figure-4
shows all the 16
Work Modes and
Table-2
lists IMA layer data rate for each mode.
In channelized mode, all the framng bits and signalling bits are set to
zero in transmt direction. And all the received signalling bits and framng
bits are discarded in receive direction. In unchannelized mode, all bits
are utilized for data transfer.
Work Mode is selected by
AddTxLink
or
AddRxLink
command
when a link is in an IMA group. The Work Mode is selected by
ConfigU-
NILink
command when a link is used as a UNI link.
Figure-4 Line Interface Work Modes
T1
E1
non-
multi-rate
multi-rate
T1 map
to E1
non-
multi-rate
multi-rate
2 Mb/s
G.802
mapping
Spaced
mapping
1.5 Mb/s
Interface
Mode
Unchannelized
Channelized
Channelized
2 Mb/s
Mode1
Mode2
Mode11
Mode12
1.5 Mb/s
Unchannelized
Mode0
ISDN
mode
Normal
mode
ISDN
mode
Data Rate
IMA o Framer
Interface Rate
Mode3
Mode4
Normal
mode
Mode5
Mode6
ISDN
mode
Normal
mode
8 Mb/s
four
channel
G.802
mapping
Spaced
mapping
Mode7
Mode8
ISDN
mode
Normal
mode
ISDN
mode
Mode9
Mode10
Normal
mode
2 Mb/s
Signalling
mode
Normal
mode
8 Mb/s
Signalling
mode
Normal
mode
Mode13
Mode14
Mode15
Mode Name
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