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PX20ÓëPX20+¹âÄ£¿é²ÎÊý±ÈÕÕ
Description
PX20ÓëPX20+¹âÄ£¿é²ÎÊý±ÈÕÕ
Ò»£® ¹âÄ£¿éÖ¸±êÒªÇó
ÔÚ¡¶ÖйúµçÐÅ EPON É豸¼¼ÊõÒªÇó V2.1¡·ÖÐ £¬Ôö¼ÓÁË 1000BASE-PX20+¹âÄ£¿éµÄ¼¼Êõ¹æ·¶ £¬½ÓÄÉ 1000BASE PX20+¹âÄ£¿é £¬¿ÉÌṩ¸ü´óµÄ·Ö¹â±ÈºÍ´«Êä¾àÀë¡£ÏÂÃæ¶Ô PX20 ºÍ PX20+¹âÄ£¿éµÄÖ¸ ±êÒªÇó½øÐÐÒ»¸ö±ÈÕÕ¡£1000BASE-PX20 ºÍ PX20+¹âÄ£¿éµÄ¹æ·¶ÒªÇóÈçÏ£º
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ÃèÊö |
PX20OLT |
PX20ONU 4dBm |
PX20+OLT |
PX20+ONU |
|
ƽ¾ù·¢Éä¹â¹¦ÂÊ£¨MAX£© |
7dBm |
4dBm |
7dBm |
4dBm |
|
ƽ¾ù·¢Éä¹â¹¦ÂÊ£¨MIN£© |
2dBm |
-1dBm |
2.5dBm |
0dBm |
|
½ÓÊÕÁéÃô¶È£¨MAX£© |
-27dBm |
-24dBm |
-30dBm |
-27dBm |
|
¹ýÔع⹦ÂÊ |
-6dBm |
-3dBm |
-6dBm |
-3dBm |
¶þ£® ¹â·×î´ó²åËðºÍ×îС²åËðÒªÇó
¹â·×î´ó²åËðÅÌËã½ÓÄÉ×îСƽ¾ù·¢¹â¹¦ÂʼõÈ¥½ÓÊÕÁéÃô¶È £¬Ïß·×îС²åËðÅÌËãΪ×î´ó·¢¹â¹â¹¦Âʼõ È¥¹ýÔع⹦ÂÊ¡£¶ÔÓ¦ PX20 ºÍ PX20+¹âÄ£¿é¹â·×î´ó²åËðºÍ×îС²åËðÒªÇó¼ûÏÂ±í£º
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¹âÄ£¿éÀàÐÍ |
ÏÂÐÐ×î´ó²åËð |
ÉÏÐÐ×î´ó²åËð |
ÏÂÐÐ×îС²åËð |
ÉÏÐÐ×îС²åËð |
|
PX20 |
26dB |
26dB |
10dB |
10dB |
|
PX20+ |
29.5dB |
30dB |
10dB |
10dB |
ÔÚʵ¼ÊÓ¦ÓÃÖÐÐèÒª¿¼ÂÇÊʵ±µÄÓàÁ¿£¨½¨Òé3dBµÄÓàÁ¿£©¡£
Èý£® ¹â·ÖÅÉÍøÂçË¥ºÄ²ÎÊý
ODN ÍøÂç¹â¹¦ÂÊËðºÄ¿É²Î¿¼ÏÂÃæµÄ±í¸ñ½øÐйÀË㣺
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ÏÂÐÐ |
²¨³¤ |
1490nm |
|
¹âÏËË¥¼õϵÊý |
0.36db/km |
|
|
Splitter ²åËð£¨1£ºn£© |
10lg(1/n) |
|
|
·¨À¼ÒýÈëµÄ²åËð |
0.5db/¸ö |
|
|
ÈÛ½ÓÍ·ÒýÈëµÄ²åËð |
0.1db/¸ö |
|
|
ÉÏÐÐ |
²¨³¤ |
1310nm |
|
¹âÏËË¥¼õϵÊý |
0.42db/km |
|
|
Splitter ²åËð£¨1£ºn£© |
10lg(1/n) |
|
|
·¨À¼ÒýÈëµÄ²åËð |
0.5db/¸ö |
|
|
ÈÛ½ÓÍ·ÒýÈëµÄ²åËð |
0.1db/¸ö |
ÉϱíÖзֹâÆ÷²åËðÊÇƾ¾Ý·Ö¹â±ÈÀíÂÛÅÌËãÖµ £¬Êµ¼ÊÒª±ÈÕâ¸ö´óһЩ £¬½¨Ò鿼ÂÇ20%µÄÐÞ ÕýÁ¿¡£Ï±í¿É¹©²Î¿¼£º
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·Ö¹âÆ÷¹æ¸ñ |
²åËðµä·¶Öµ |
¶Ë¿Ú¼ä×î´óÆ«²î¹æÄ£ |
²âÊÔÒÇÆ÷ |
|
1 ·Ö 2 50£¥-50£¥ |
3.4dB |
0.4 dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 2 5£¥-95£¥ |
11.8 dB:0.6dB |
0.4 dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 2 10£¥-90£¥ |
10.4:0.9 |
0.4 dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 2 20£¥-80£¥ |
7.4:1.3 |
0.4 dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 2 30£¥-70£¥ |
5.6:1.9 |
0.4 dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 2 40£¥-60£¥ |
4.4:2.6 |
0.4 dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 4 ¾ù·Ö |
7.2dB |
0.8dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 8 ¾ù·Ö |
10.7dB |
1.7dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 16 ¾ù·Ö |
14.8dB |
2.0dB |
¹â¹¦ÂÊ¼Æ |
|
1 ·Ö 32 ¾ù·Ö |
17.8dB |
2.5dB |
¹â¹¦ÂÊ¼Æ |
ËÄ£® ¹âÂþÑÜÍøÂç¹âÏ˾àÀëºÍ·Ö¹â±ÈÏÞÖÆ
EPON×îС·Ö¹â±È1:8(·Ö¹â±ÈÔÙСʧȥPONÍøÂçÓÅÊÆ),×î´ó·Ö¹â±È°´1£º64£¨ÔÙ´óÔò»á ÓÐÆäËü×ÊÔ´ÏÞÖÆ £¬Ò»Ð©ÐÔÄÜÖ¸±êÒ²ºÜÄÑ°ü¹Ü£©£»×î´ó¹âÏ˾àÀë20km(ËäȻҲÄÜÖ§³Ö ¸ü´óµÄ¹âÏ˾àÀë £¬¿ÉÊǶÔʱÑÓÓ°Ïì±È½Ï´ó £¬Ò»°ã²»½¨ÒéʹÓÃ)£» OLTµ½ONUÖÁÉÙ4¸ö »î½ÓÍ·£¨OLT £¬ONU¸÷Ò»¸ö £¬·Ö¹âÆ÷Ö÷¸ÉºÍ·ÖÖ§¸÷һϣ© £¬Ë¥¼õ2db¡£²î±ð·Ö¹â±ÈµÄ ×î´ó¹âÏ˳¤¶È¿ÉÒԲο¼ÏÂÃæ±í¸ñ£º
|
¹âÄ£¿éÀàÐÍ |
1:8 |
1:16 |
1:32 |
1:64 |
|
PX20 |
20km |
20km |
10km |
£ |
|
PX20+ |
20km |
20km |
20km |
10km |
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