参数资料
型号: PM7351-BI
厂商: PMC-SIERRA INC
元件分类: 数字传输电路
英文描述: OCTAL SERIAL LINK MULTIPLEXER
中文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PBGA304
封装: 31 X 31 MM, 1.51 MM HEIGHT, 1.27 MM PITCH, SBGA-304
文件页数: 17/174页
文件大小: 1790K
代理商: PM7351-BI
RELEASED
PM7351 S/UNI-VORTEX
DATA SHEET
PMC-1980582
ISSUE 5
OCTAL SERIAL LINK MULTIPLEXER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
7
Fig. 2 Three Stage Multiplex Architecture
Buffering
Discard
Scheduling
Modem
Modem
Modem
WAN
up-link
S/UNI-
DUPLEX
S/UNI-
VORTEX
Line Card #1
Line Card #2
WAN Card
Policing
OA&M
OA&M
Modem
Modem
Modem
S/UNI-
DUPLEX
Line Card #N
Modem
Modem
Modem
S/UNI-
DUPLEX
S/UNI-
VORTEX
Stage 1
Stage 2
Stage 3
The first stage resides on the line card and spans only those ports physically
terminated by that card. Since it is confined to a single card, this first stage of
multiplexing readily lends itself to a simple parallel bus based multiplex topology.
The second stage of concentration occurs between the core card(s) and the line
cards, including line cards that are on a separate shelf. This second stage is
best served by a redundant serial point-to-point technology. The third stage of
multiplexing is optional and resides on the core card. This third stage is used in
systems with a large number of line cards that require several S/UNI-VORTEX
devices to terminate the second stage of aggregation. Since the third stage of
aggregation is confined to the core card, it lends itself readily to a parallel bus
implementation. This three stage approach is implemented directly by the
S/UNI-VORTEX and its sister device, the S/UNI-DUPLEX.
The S/UNI-DUPLEX acts as the line card’s bus master. It implements the first
stage of multiplexing by routing traffic from the PHYs and transmitting the traffic
simultaneously over two high speed (up to 200 Mbps) serial 4-wire LVDS links.
One serial link attaches to the active core card, the other to the standby core
相关PDF资料
PDF描述
PM7364 Frame Engine and Datalink Manager
PM7364-BI FRAME ENGINE AND DATA LINK MANAGER
PM7366 FRAME ENGINE AND DATA LINK MANAGER
PM7366-BI TVS BI-DIR 30V 1500W DO-201
PM7366-PI FRAME ENGINE AND DATA LINK MANAGER
相关代理商/技术参数
参数描述
PM-736 制造商:Eclipse Tools 功能描述:
PM7364 制造商:PMC 制造商全称:PMC 功能描述:FRAME ENGINE AND DATA LINK MANAGER
PM7364-BI 制造商:PMC-Sierra 功能描述:PROTOCOL CONTROLLER, 256 Pin, BGA
PM7366 制造商:PMC 制造商全称:PMC 功能描述:FRAME ENGINE AND DATA LINK MANAGER