..
..
2012
1.
(, , , ) | |||
- | 01.07.2012 | 13.07.2012 |
___________________
2.
1. Asus AM604g,D-Link 500T, ZTE, Zyxel LAN prestige 660, HUAWEI. 2. Asus AM604g,D-Link 500T, ZTE, Zyxel LAN prestige 660, HUAWEI. 3. . |
____________________
3.
, | ||
01.07.12 01.07.12 02.07.12 02.07.12 03.07.12 03.07.12 04.07.12 04.07.12 05.07.12 05.07.13 06.07.12 06.07.12 07.07.12 07.07.12 08.07.12 09.07.12 10.07.12 11.07.12 12.07.12 13.07.12 | FTTB . 50 , 34 ., 27 ., 18 . 50 , 30 , 22 , 63 , 28 . 50 , 26 ., 37 , 61 ., 29 , 34 . 50 , 24 , 55 , 36 ., 33 , 30 ., 23 , 22 |
|
|
4., ,
, | , , | ||
06.08.10 | .. | ||
.. |
____________________
5.
__________________________________________________________________________
__________________________________
____________________
6.
__________________________________________________________________________
__________________
___________________________ .
. ..
2 -. ( 1 13 2012 ) , , .
, , . , , . , , .
, .
. -
.. __ ___________2012.
. ..
:
-
..
..
____________
2012
. . . Ш
:
1.: -컻
2. () 28. 12. 2012
3. :
3.1 PON.
3.2 PON.
3.3 FTTH PON.
|
|
__________________ ..
___________________________
,
Ethernet.
: ( Ethernet).
: .
: , .
: , .
PON.
PON (Passive optical network) .
, , .
PON , OLT (optical line terminal) ONT (optical network terminal) , . () , . OLT ONT. ONT, OLT, , .
, , . (downstream) 1490 1550 . (upstream) 1310 (TDMA).
PON . - ( -), . - PON 32 20 EPON / BPON 128 60 GPON. . , .
PON ATM, SDH (STM-1), Gigabit Ethernet . 10/100Base-TX, FXS (2, 4, 8 16 ), E1, , ATM (E3, DS3, STM-1c).
PON.
1. . 128 , 60
2.
3. 2,488 / 1,244 /
4. . , .
5. . .
6. ,
7. . ATM , .
|
|
8. ATM
9.
PON.
APON | BPON | EPON (GEPON) | GPON | |
G.983 | ITU G.983 | IEEE 802.3ah | ITU G.984.6 | |
155 / | 622 / | 1,244 / | 2,488 / | |
155 / | 155 / | 1,244 / | 1,244 / | |
, | ||||
PON | 26 | 22 |
FTTH PON.
PON-
, , . , . , PON, , . - , .
.
, , , . .
, , , , , .
. PON , , .
, , . . . PON , .
|
|
Ethernet FTTH
- .
, , . Ethernet FTTH . .
- .
Ethernet FTTH , 100BX 1000BX, 10 . , , , Ethernet- . Ethernet FTTH, Ethernet.
- .
Ethernet FTTH , -. Ethernet . , PON OLT, PON ONT.
- .
Ethernet FTTH Gigabit Ethernet, 30-40 . , . , Ethernet FTTH, Ethernet- .
- .
, , . , , , Fast Ethernet, Gigabit Ethernet Ethernet- . Ethernet FTTH.
- .
, Ethernet FTTH. - PON. FTTH , , .
- .
( ), . , Ethernet, , , .
- .
(PON) CPE (ONT) PON, . Ethernet CPE ( / , VoIP, ), PON :
* PON
* (burst-mode lasers), ONT , OLT
|
|
* ( 20,4 , Ethernet)
*
*
ONT PON, Ethernet FTTH CPE, -. GPON , OLT ONT . ADSL .
ONT , , . , Ethernet FTTH CPE . , , . Ethernet CPE, (, ). CPE .
ONT PON , ONT . CPE, Ethernet CPE PON ONT. CPE. Ethernet FTTH, . , CPE (Residential Gateway), .
- .
, FTTH, . , , Ethernet FTTH - , PON FTTH.