Cisco UBR7246VXR 설치 매뉴얼 - 페이지 26
{카테고리_이름} Cisco UBR7246VXR에 대한 설치 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Cisco UBR7246VXR 28 페이지. Universal broadband router
Cisco UBR7246VXR에 대해서도 마찬가지입니다: 빠른 시작 매뉴얼 (27 페이지), 사용자 설명서 (7 페이지), 하드웨어 설치 (25 페이지)
페이지 인쇄
Figure A-2
PA
PRI
SRC
PA
SEC
SRC
Figure A-3
PA
PRI
SRC
PA
SEC
SRC
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband Router
A-2
Secondary External Clock Source
Port adapters w/
internal clocking
PA
PA
Midplane
clk mux
Clock card primary source to midplane 8 kHz
Secondary External Clock Source Driving Midplane
Port adapters w/
internal clocking
PA
PA
Midplane
clk mux
Clock card primary source to midplane 8 kHz
External SRCs
PRI SEC
Clock card
clk mux
PRI clk
PRI LOS
SEC clk
SEC LOS
No cable clock
force secondary
source-midplane
External SRCs
PRI SEC
Clock card
clk mux
PRI clk
PRI LOS
SEC clk
SEC LOS
No cable clock
force secondary
source-midplane
Appendix A
Clock Source Paths
Clock recovery
and filter chips
20.48
MHz
To line
cards
Cable clock
Clock recovery
and filter chips
20.48
MHz
To line
cards
Cable clock
OL-26705-01