RELEASED
PM7351 S/UNI-VORTEX
DATA SHEET
PMC-1980582
ISSUE 5
OCTAL SERIAL LINK MULTIPLEXER
card.1 In the downstream direction the S/UNI-DUPLEX demultiplexes traffic from
the active core card’s LVDS serial link and routes this traffic to the appropriate
PHYs. If the active core card (or its LVDS link) should fail, protection switching
commands embedded in the spare LVDS link will direct the S/UNI-DUPLEX to
start receiving its traffic from this spare link.
The S/UNI-VORTEX resides on the core card and terminates up to 8 LVDS links
connected to 8 S/UNI-DUPLEX devices. The S/UNI-VORTEX implements the
second stage of multiplexing. More than one S/UNI-VORTEX will be required if
more than 8 links are required – as will be the case for a system with more than
8 line cards. The S/UNI-VORTEX device(s) share a high speed parallel bus with
the core card’s traffic management and OA&M layers, as implemented by
devices such as PMC-Sierra’s S/UNI-APEX and the S/UNI-ATLAS. This is the
third stage of multiplexing.
1
A single core card implementation is also supported, of course.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
8
PMC [ PMC-SIERRA, INC ]
