HTML datasheet archive (search documentation on electronic components) Search datasheet (1.687.043 components)
Search field

Datasheet: LXT906 (Level One)

Ethernet Twisted-pair/coax Adapter

 

Download: PDF   ZIP
Level One

Document Outline

0$<
*HQHUDO 'HVFULSWLRQ
)HDWXUHV
L1
/;7 %ORFN 'LDJUDP
'$7$ 6+((7
/;7
(WKHUQHW 7ZLVWHG3DLU &RD[ $GDSWHU
5HYLVLRQ
7KH /;7 7ZLVWHG3DLU&RD[ $GDSWHU LV GHVLJQHG WR
DOORZ D FRVW HIIHFWLYH (WKHUQHW LPSOHPHQWDWLRQ LQ D PL[HG
PHGLD HQYLURQPHQW &RPELQHG ZLWK D FRD[ WUDQVFHLYHU
VXFK DV WKH '3 WKH /;7 RIIHUV D FRPSOHWH DGDSWHU
VROXWLRQ
/;7 IXQFWLRQV LQFOXGH OHYHOVKLIWHG GDWD SDVVWKURXJK
IURP RQH WUDQVPLVVLRQ PHGLD WR DQRWKHU FROOLVLRQ GHWHFWLRQ
DQG SURSDJDWLRQ DQG DXWRPDWLF FRUUHFWLRQ RI SRODULW\
UHYHUVDO RQ WKH WZLVWHG SDLU LQSXW ,W DOVR LQFOXGHV /('
GULYHUV IRU MDEEHU FRD[ UHFHLYH DQG FROOLVLRQ WZLVWHG SDLU
UHFHLYH DQG FROOLVLRQ UHYHUVHG SRODULW\ GHWHFW DQG OLQN LQGL
FDWLRQ IXQFWLRQV
7KH /;7 LV DQ DGYDQFHG &026 GHYLFH DQG UHTXLUHV
RQO\ D VLQJOH YROW SRZHU VXSSO\
$SSOLFDWLRQV
%$6(7 WR &RD[ %$6( RU %$6(
FRQYHUWHU
'LUHFW LQWHUIDFH WR &RD[ WUDQVFHLYHU DQG WR 5-
FRQQHFWRU
&ROOLVLRQ GHWHFWLRQ DQG SURSDJDWLRQ
,QWHUQDO SUHGLVWRUWLRQ JHQHUDWLRQ
,QWHUQDO FRPPRQ PRGH YROWDJH JHQHUDWLRQ
6HOHFWDEOH OLQN WHVW
7ZLVWHG3DLU UHFHLYH SRODULW\ UHYHUVH GHWHFWLRQ DQG
FRUUHFWLRQ
/(' GULYHUV IRU 73 DQG FRD[ UHFHLYH 73 DQG FRD[
FROOLVLRQ MDEEHU OLQN DFWLYH DQG UHYHUVHG SRODULW\
LQGLFDWRUV
6LQJOH 9 VXSSO\ &026 WHFKQRORJ\
$YDLODEOH LQ SLQ 3/&&
&RD[
5HFHLYHU
$,3
$,1
:DWFKGRJ
7LPHU
&RD[
'ULYHU
/LQN
,QWHJULW\
&ROOLVLRQ
5HFHLYHU
;7$/
2VF
$23
$21
/,
&,3
&,1
&/.,
&/.2
3XOVH
6KDSLQJ
3RODULW\
'HWHFW
73
5HFHLYHU
6TXHOFK
5HSHDWHU
/RJLF
/('
'ULYHU
7323
7321
73,3
73,1
/&;5
/&;&
/73&
/735
/3/5
//1.
/-$%
/;7 (WKHUQHW 7ZLVWHG3DLU &RD[ $GDSWHU
L1
3,1 $66,*10(176 $1' 6,*1$/ '(6&5,37,216
)LJXUH /;7 3LQ $VVLJQPHQWV
7DEOH /;7 6LJQDO 'HVFULSWLRQV
3LQ
6\P
,2
'HVFULSWLRQ
/735
2
7ZLVWHG3DLU 5HFHLYH /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH 73 5HFHLYH LQGLFDWRU /('
2XWSXW SXOOV /RZ ZKHQHYHU 73 UHFHLYHU LV DFWLYH
/3/5
2
7ZLVWHG3DLU 5HYHUVH 3RODULW\ /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH 73 5HYHUVHG 3RODU
LW\ LQGLFDWRU /(' 2XWSXW SXOOV /RZ ZKHQHYHU UHYHUVHG SRODULW\ LV GHWHFWHG
//1.
2
7ZLVWHG3DLU /LQN /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH 73 /LQN LQGLFDWRU /(' 2XWSXW
JRHV +LJK ZKHQHYHU OLQN LV DFWLYH
/-$%
2
-DEEHU /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH -DEEHU LQGLFDWRU /(' 2XWSXW SXOOV /RZ
ZKHQHYHU /;7 LV LQ D MDEEHU FRQGLWLRQ

&/.2
&/.,
2
,
&U\VWDO 2VFLOODWRU 7KH /;7 UHTXLUHV HLWKHU D 0+] FU\VWDO RU FHUDPLF UHVRQDWRU
FRQQHFWHG DFURVV WKHVH SLQV RU D 0+] H[WHUQDO FORFN DSSOLHG DW &/., ZLWK &/.2 OHIW
XQFRQQHFWHG
*1'
*URXQG *URXQG
5%,$6
,
5HVLVWRU %LDV &RQWURO %LDV FRQWURO SLQ IRU WKH RSHUDWLQJ FLUFXLW %LDV VHW IURP H[WHUQDO
UHVLVWRU WR JURXQG ([WHUQDO UHVLVWRU YDOXH N
`
/,
,
/LQN ,QWHJULW\ (QDEOHV /LQN ,QWHJULW\ WHVWLQJ ZKHQ WLHG +LJK

73,3
73,1
,
,
7ZLVWHG3DLU 5HFHLYH ,QSXWV 'LIIHUHQWLDO UHFHLYH LQSXWV IURP WKH WZLVWHGSDLU LQSXW ILOWHU

7321
7323
2
2
7ZLVWHG3DLU 7UDQVPLW 2XWSXWV 7UDQVPLW GULYHUV WR WKH WZLVWHGSDLU RXWSXW ILOWHU 2XWSXW
GDWD LV 0DQFKHVWHU HQFRGHG DQG SUHGLVWRUWHG WR PHHW WKH %$6(7 WHPSODWH
*1'
*URXQG *URXQG
9&&
3RZHU 6XSSO\ 9 SRZHU VXSSO\
&/.2
&/.,
*1'
5%,$6
/,
73,3
73,1
767
767
9&&
&,3
&,1
$,3
$,1
/-$
%
//1
.
/3/5 /735 /73& /&
;&
/&
;5
73
2
3
*1' 9&& 73
2
1
$2
1
$2
3
76
7
/;73&
L1
L1
/;7 3LQ $VVLJQPHQWV $QG 6LJQDO 'HVFULSWLRQV

$21
$23
2
2
$8, 2XW 1HJDWLYH DQG $8, 2XW 3RVLWLYH 'LIIHUHQWLDO GULYHU RXWSXW SDLU FRQQHFWHG WR WKH
&RD[ $8,
767
7HVW 3LQ 7HVW SLQ IRU IDFWRU\ XVH 7KLV SLQ PXVW EH OHIW XQFRQQHFWHG

$,1
$,3
,
,
$8, ,Q 1HJDWLYH DQG $8, ,Q 3RVLWLYH 'DWD LQSXW SDLU IURP WKH &RD[ $8,

&,1
&,3
,
,
&ROOLVLRQ ,QSXW 1HJDWLYH DQG &ROOLVLRQ ,QSXW 3RVLWLYH 'LIIHUHQWLDO LQSXW SDLU WLHG WR WKH
FROOLVLRQ SUHVHQFH SDLU RI WKH (WKHUQHW &RD[ WUDQVFHLYHU
9&&
3RZHU 6XSSO\ 9 SRZHU VXSSO\

767
767

7HVW 3LQ DQG 7HVW 3LQ 7HVW SLQV UHVHUYHG IRU IDFWRU\ XVH 7KHVH SLQV PXVW EH OHIW
XQFRQQHFWHG
/&;5
2
&RD[ $8, 5HFHLYH /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH &RD[ 5HFHLYH LQGLFDWRU /('
3XOOV /RZ ZKHQHYHU FRD[ UHFHLYHU LV DFWLYH
/&;&
2
&RD[ &ROOLVLRQ /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH &RD[ &ROOLVLRQ LQGLFDWRU /('
3XOOV /RZ ZKHQHYHU D FROOLVLRQ LV GHWHFWHG RQ WKH FRD[ FLUFXLW
/73&
2
73 &ROOLVLRQ /(' 'ULYHU 2SHQ GUDLQ GULYHU IRU WKH 73 &ROOLVLRQ LQGLFDWRU /(' 3XOOV
/RZ ZKHQHYHU D FROOLVLRQ LV GHWHFWHG RQ WKH 73 OLQHV
7DEOH /;7 6LJQDO 'HVFULSWLRQV
FRQWLQXHG
3LQ
6\P
,2
'HVFULSWLRQ
/;7 (WKHUQHW 7ZLVWHG3DLU &RD[ $GDSWHU
L1
)81&7,21$/ '(6&5,37,21
7KH /;7 LQWHUIDFHV WKH FRD[LDO WUDQVFHLYHU $8, WR WKH
XQVKLHOGHG WZLVWHGSDLU FDEOHV DOORZLQJ GDWD WUDQVIHU LQ
ERWK GLUHFWLRQV 7KH $8, VLGH RI WKH LQWHUIDFH LV FRPSULVHG
RI WKUHH FLUFXLWV 'DWD ,QSXW $,3 DQG $,1 WR WKH FRD[
UHFHLYHU 'DWD 2XWSXW $23 DQG $21 IURP WKH FRD[
GULYHU DQG &ROOLVLRQ ,QWHUIDFH &,3 DQG &,1 WR WKH FROOL
VLRQ UHFHLYHU 7KH WZLVWHGSDLU 73 QHWZRUN VLGH RI WKH
LQWHUIDFH LV FRPSULVHG RI WZR FLUFXLWV 73 2XWSXW 7323
DQG 7321 IURP WKH SXOVH VKDSHU DQG 73 ,QSXW 73,3 DQG
73,1 WR WKH 73 UHFHLYHU ,Q DGGLWLRQ WR WKHVH ILYH EDVLF FLU
FXLWV WKH /;7 FRQWDLQV FU\VWDO RVFLOODWRU FLUFXLWU\ YDU
LRXV ORJLF FRQWUROV DQG VHYHQ /(' GULYHUV IRU VWDWXV
LQGLFDWLRQV
&RD[ WR 73 )XQFWLRQ
7KH /;7 UHFHLYHV GDWD IURP WKH FRD[ WUDQVFHLYHU YLD
$,3 DQG $,1 DQG UHWUDQVPLWV LW WR WKH WZLVWHGSDLU 73
QHWZRUN RQ WKH 73 2XWSXW FLUFXLW 7KH 73 2XWSXW VLJQDO
RQ 7321 DQG 7323 LV SUHGLVWRUWHG WR PHHW WKH
%$6(7 MLWWHU WHPSODWH 7KH RXWSXW ZDYHIRUP DIWHU WKH
WUDQVPLW ILOWHU LV VKRZQ LQ )LJXUH ,I WKH GLIIHUHQWLDO
LQSXWV $,3 DQG $,1 IDOO EHORZ RI WKH WKUHVKROG OHYHO
IRU ELW WLPHV W\SLFDO WKH /;7 73 WUDQVPLW IXQFWLRQ
ZLOO HQWHU WKH LGOH VWDWH 'XULQJ LGOH SHULRGV WKH /;7
WUDQVPLWV OLQN LQWHJULW\ WHVW SXOVHV RQ 7323 DQG 7321
)LJXUH /;7 732 2XWSXW :DYHIRUP.
73 WR &RD[ )XQFWLRQ
7KH /;7 UHFHLYHV GDWD IURP WKH WZLVWHGSDLU 73 QHW
ZRUN RQ WKH 73 ,QSXW FLUFXLW DQG UHWUDQVPLWV LW WR WKH FRD[
WUDQVFHLYHU RQ WKH $2 FLUFXLW $Q LQWHUQDO VTXHOFK IXQFWLRQ
GLVFULPLQDWHV QRLVH IURP OLQN WHVW SXOVHV DQG YDOLG GDWD
VWUHDPV 2QO\ YDOLG GDWD VWUHDPV DFWLYDWH WKH 73 UHFHLYH
IXQFWLRQ ,I WKH GLIIHUHQWLDO LQSXWV DW WKH 73 ,QSXW FLUFXLW IDOO
EHORZ RI WKH WKUHVKROG OHYHO XQVTXHOFKHG IRU ELW
WLPHV W\SLFDO WKH /;7 73 UHFHLYH IXQFWLRQ ZLOO HQWHU
WKH LGOH VWDWH 7KH &RD[WR73 GDWD SDWK LV GLVDEOHG ZKHQ
WKH 73WR&RD[ SDWK LV DFWLYH The Coax-to-TP path is
enabled 9 bit times after the end of TP-to-Coax transmission.
3RODULW\ 5HYHUVH )XQFWLRQ
7KH /;7 SRODULW\ UHYHUVH IXQFWLRQ XVHV ERWK OLQN SXOVHV
DQG HQGRIIUDPH GDWD WR GHWHUPLQH WKH SRODULW\ RI WKH
UHFHLYHG VLJQDO $ UHYHUVHG SRODULW\ FRQGLWLRQ LV GHWHFWHG
ZKHQ HLJKW OLQN SXOVHV RI WKH RSSRVLWH XQH[SHFWHG SRODU
LW\ DUH UHFHLYHG ZLWKRXW UHFHLSW RI D OLQN SXOVH ZLWK WKH
H[SHFWHG SRODULW\ 5HYHUVHG SRODULW\ LV DOVR GHWHFWHG LI IRXU
IUDPHV DUH UHFHLYHG ZLWK D UHYHUVHG VWDUWRILGOH ,I WKH
/;7 HQWHUV WKH OLQN IDLO VWDWH DQG QR GDWD RU OLQN SXOVHV
DUH UHFHLYHG ZLWKLQ WR PV WKH SRODULW\ LV UHVHW WR WKH
GHIDXOW QRQIOLSSHG FRQGLWLRQ 1RWH WKDW LI WKH /LQN ,QWHJ
ULW\ IXQFWLRQ LV GLVDEOHG SRODULW\ GHWHFWLRQ LV EDVHG RQO\
XSRQ UHFHLYHG GDWD SXOVHV 7KH /;7 DXWRPDWLFDOO\ FRU
UHFWV IRU UHYHUVHG SRODULW\
-DEEHU )XQFWLRQ
$ -DEEHU FRQGLWLRQ LV GHWHFWHG ZKHQ WKH /;7 KDV WUDQV
PLWWHG FRQWLQXRXVO\ IRU ORQJHU WKDW PV RQ 73237321
RU $23$21 ,I WKLV RFFXUV WKH UHSHDWHU VWDWH PDFKLQH
DQG RXWSXW GDWD WUDQVPLVVLRQ DUH GLVDEOHG DQG WKH -DEEHU
/(' VLJQDO /-$% JRHV /RZ 7UDQVPLVVLRQ LV UHHQDEOHG
ZKHQ QR DFWLYLW\ KDV EHHQ GHWHFWHG RQ 73,373,1 RU $,3
$,1 IRU "V
/LQN ,QWHJULW\ 7HVW )XQFWLRQ
)LJXUH LV D VWDWH GLDJUDP RI WKH /;7 /LQN ,QWHJULW\
7HVW )XQFWLRQ 7KH /LQN ,QWHJULW\ 7HVW LV XVHG WR GHWHUPLQH
WKH VWDWXV RI WKH WZLVWHGSDLU FDEOH /LQN LQWHJULW\ WHVWLQJ LV
HQDEOHG ZKHQ WKH /, SLQ LV WLHG +LJK :KHQ HQDEOHG WKH
UHFHLYHU UHFRJQL]HV OLQN LQWHJULW\ SXOVHV ZKLFK DUH WUDQV
PLWWHG LQ WKH DEVHQFH RI UHFHLYH WUDIILF ,I QR VHULDO GDWD
VWUHDP RU OLQN LQWHJULW\ SXOVHV DUH GHWHFWHG ZLWKLQ
PV WKH FKLS HQWHUV D OLQNIDLO VWDWH DQG GLVDEOHV WKH WUDQVPLW
IXQFWLRQ DQG WKH UHSHDWHU VWDWH PDFKLQH 7KH /;7
LJQRUHV DQ\ OLQN LQWHJULW\ SXOVH ZLWK DQ LQWHUYDO RI OHVV WKDQ
PV 7KH /;7 ZLOO UHPDLQ LQ WKH OLQN IDLO VWDWH XQWLO
LW GHWHFWV HLWKHU D VHULDO GDWD SDFNHW RU WZR RU PRUH OLQN
LQWHJULW\ SXOVHV
&ROOLVLRQ 3URSDJDWLRQ
)XQFWLRQ
$ 73 FROOLVLRQ LV GHILQHG DV WKH VLPXOWDQHRXV SUHVHQFH RI
YDOLG VLJQDOV RQ ERWK WKH 73 ,QSXW FLUFXLW DQG WKH 73 2XWSXW
FLUFXLW $ &RD[ FROOLVLRQ LV GHWHFWHG ZKHQ D YDOLG FROOLVLRQ
VLJQDO LV SUHVHQW DW &,3&,1 ,I D FROOLVLRQ LV GHWHFWHG WKH
DSSURSULDWH FROOLVLRQ /(' 73 RU FRD[ LV DFWLYDWHG DQG D
-DP IUDPH LV WUDQVPLWWHG DV GHVFULEHG LQ )LJXUH 7KH -DP
OHQJWK LV DOZD\V D PLQLPXP RI ELWV ELWV RI DOWHUQDW
LQJ V DQG V IROORZHG E\ DQ DOO V SDWWHUQ
L1
/;7 )XQFWLRQDO 'HVFULSWLRQ
)LJXUH /;7 /LQN ,QWHJULW\ 7HVW )XQFWLRQ
,GOH 7HVW
6WDUWB/LQNB/RVVB7LPHU
6WDUWB/LQNB7HVWB0LQB7LPHU
3RZHU 2Q
/LQN 7HVW )DLO 5HVHW
/LQNB&RXQW
;0,7 'LVDEOH
5&95 'LVDEOH
/LQNB/RVVB7LPHUB'RQH
73, ,GOH
/LQNB7HVWB5FYG )DOVH
73, $FWLYH
/LQNB7HVWB5FYG 7UXH
/LQNB7HVWB0LQB7LPHUB'RQH
/LQN 7HVW )DLO :DLW
;0,7 'LVDEOH
5&95 'LVDEOH
/LQNB&RXQW /LQNB&RXQW
/LQN 7HVW )DLO
6WDUWB/LQNB7HVWB0LQB7LPHU
6WDUWB/LQNB7HVWB0D[B7LPHU
;0,7 'LVDEOH
5&95 'LVDEOH
/LQNB7HVWB5FYG )DOVH
73, ,GOH
73, $FWLYH
73, $FWLYH
/LQNB7HVWB5FYG ,GOH
73, ,GOH
/LQN 7HVW )DLO ([WHQGHG
;0,7 'LVDEOH
5&95 'LVDEOH
73, $FWLYH
/LQNB&RXQW /&B0D[
/LQNB7HVWB0LQB7LPHUB'RQH
/LQNB7HVWB5FYG 7UXH
73, ,GOH
/LQNB7HVWB0D[B7LPHUB'RQH
/LQNB7HVWB0LQB7LPHUB1RWB'RQH
/LQNB7HVWB5FYG 7UXH
73, ,GOH
'2 ,GOH
© 2018 • ICSheet
Contact form
Main page