O.172 ITU-T (SDH) ITU-T O.172 (2005/04)

(ITU-T)... (WTSA).. 1.(IEC) (ISO). " ".( ). " ".. ""....(TSB) ITU 2005.. (2005/04) ITU-T O.172 ii

1 1 1 2 2 3 3 4 5 5 5 5 6 6 6 6 6 7 9 10 11 11 12 14 16 19 19 19 19 19 20 21 23 24......... 1.2... 2.2.................. 1.7... 2.7... 3.7... 4.7... /... 1.8... 2.8... 3.8... 4.8.../ 5.8... 6.8...... 1.9... 2.9... 3.9... 4.9... 5.9... 6.9...... 1.10...(TIE) 2.10... ( ) TIE 3.10... (MTIE) 4.10... (TDEV) 5.10... 6.10 1 2 3 4 5 6 7 8 9 10 iii (2005/04) ITU-T O.172

25 27 27 27 28 28 28 29 30 31 33 34 34 35 36 37 37 37 38 39 39 39 40 40 44 44 44 46 48 48 48 51 52... 7.10...(TDEV) 11... 12... 13... - A... 1.A... (STM-N) N 2.A 3.A...(STM-N) N... - B... - C... (SDH) - I... (SDH) - II... 1.II... 2.II... - III... - IV... 1.IV... 2.IV... 3.IV... (TDEV) (MTIE) - V...(TIE) 1.V...(TIE) 2.V... (TIE) 3.V...(MTIE) - VI... - VII... 1.VII... 2.VII... 3.VII... - VIII... 1.VIII... 2.VIII... 3.VIII... 4.VIII (2005/04) ITU-T O.172 iv

(SDH) (ITU-T). /. (SDH) [18] O.171 (PDH). v (2005/04) ITU-T O.172

(SDH) ITU-T O.172.(SDH) 1.(PDH)./ /.(SDH). (ITU-T) [18] O.171.(PDH) [15] G.798 [13] G.825 [10] G.813 [9] G.812 [6] G.783. 2..... STM-252 STM-64 (2003) ITU-T G.691... /.. (2005) ITU-T G.693 (2001) ITU-T G.703 (2003) ITU-T G.707/Y.1322. (2004).. (1997) (1993) ITU-T G.772 ITU-T G.783 (1996) ITU-T G.810 ITU-T G.811 1.2 [1] [2] [3] [4] [5] [6] [7] [8] 1 (2005/04) ITU-T O.172

.. (2004)...STM-N (2004) ITU-T G.812.. (2003) ITU-T G.813 (2000) ITU-T G.823.kbit/s 2048 (2000) ITU-T G.824.kbit/s 1544 (2000) ITU-T G.825 (1999) ITU-T G.957 ITU-T G.798 (1992) ITU-T O.3 (1996) ITU-T O.150 (1997).(PDH). ITU-T O.171 (2002) ITU-T O.181 (2000) ITU-T F.750-4. [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] (ANSI) (ANSI) 2.2 [21] T1.105.03-2003. (SONET) T1.105.06-2002 [22]. (SONET) [7] G.810 ) : ( :() 1.3.( Hz 10 " " ) ) : 2.3.(Hz 10 " " 3.2003 (ATIS) T1 (2005/04) ITU-T O.172 2

:() 3.3. [7] G.810.. : n AU-n CMI MTIE NRZ PDH PJE PLL ppm PRBS RMS SDH N STM-N TDEV TIE TSS m TU-m UI UIpp : (.kbit/s 139 264 (STM-1) 1. (PDH) (.(7 ) STM-1e "e" 4 5 3 (2005/04) ITU-T O.172

. (STM-N) N.(PDH) (. 1. 6 / External reference clock input Measurement filter Phase detector Reference timing signal MTIE (MTIE) calculation TDEV calculation MTIE result TDEV result Wander measurem function O.172_F01 O.172/1 (2005/04) ITU-T O.172 4

7 [1] G.691 [14] G.957 ) (ANSI) T1.105.06 [22].(kbit/s 51 840 kbit/s 51 840 (STM-0) 0 - kbit/s 155 520 (STM-1) 1 - kbit/s 622 080 (STM-4) 4 - kbit/s 2 488 320 (STM-16) 16 - kbit/s 9 953 280 (STM-64) 64 - kbit/s 39 813 120 (STM-256) 256 - [20] F.750-4 [3] G.703.(kbit/s 51 840 ). / - -. kbit/s 1544 - kbit/s 2048 - kbit/s 6312 - kbit/s 34 368 - kbit/s 44 736 - STM-0e kbit/s 51 840 - kbit/s 139 264 - STM-1e kbit/s 155 520 - / /. [3] G.703 / /.. kbit/s 2048 1544. khz 2048 kbit/s 2048. [3] G.703 1.7 2.7 3.7 5 (2005/04) ITU-T O.172

[1] : / G.691 [14] G.957 [3] G.703.[5] G.722 4.7 ( ( ( /. /.1 8 /.... /.3 3 0,25 (Ω) 75 1 / (Ω) 50..(ppm) 4,6 ± 1.8 2.8 1.2.8 (ppm) 100± 10±. [10] G.813 [3] G.703.3.7. / 3.8 (2005/04) ITU-T O.172 6

: (STM-N) N ITU-T G.707/Y.1322 [4] (SDH) ( ITU-T O.181 [19] (.A ( [17] [17] [17] O.150 (SDH) /3.5 O.150 /5.5 O.150 /6.5 1.3.8 2.3.8 : 1 15 2.kbit/s 44 736 6312 2048 1 20 2.kbit/s 44 736 6 312 1 544 1 23 2.kbit/s 139 264 34 368. 10001000 : ) 8 ( (Hz 100 10. 16 ( (PJEs) [6] G.783. (PJE).. III.[6] G.783 /10 1 "X" (SDH) (TU-m) m (AU-n) n..1.[6] G.783 4.8 1.4.8 /15 7 (2005/04) ITU-T O.172

139 264 AU-4 X X X X X X X (SDH) 44 736 AU-3 X X X X X X X X X G.783 (kbit/s) 34 368 TU-3 X X X X 6312 TU-2 () 2048 TU-12 X X X O.172/1 1544 TU-11 X X X X X X X. TU-2 kbit/s 6312 G.783 ID a + b + c d e f 87-3 g1 87-3 g2 87-3 g3 h1 h2 h3 i 26-1 j1 26-1 j2 26-1 j3 (PJEs) ITU-T G.783 [6]. 2. T1. 2.2 T2 G.783 - O.172/2 139 264 s 10 () () (SDH) (kbit/s) 44 736 34 368 6312 2048 1544 s 30 s 10 ms 34 ms 0,5 () () () () () s 10 s 30 ms 750 s 1 ( ) T1 ( ) T2 ms 2 s 2 T3.ITU-T G.783 [6] : G.783 - O.172/2 1 (2005/04) ITU-T O.172 8

/ / /.SDH a3 3 3 / - O.172/3 / 5.8 [Hz] / / [UIpp] f 4 k 400 M 1,3 M 5 M 20 M 80 f 3 k 20 k 65 k 250 M 1 M 4 f 2 k 2 k 6,5 k 25 k 100 f 1 300 500 k 1 k 5 k 400 k 20 f 8 30 19,3 9,65 12,1 12,1 f 9 10 m 125 m 125 m 125 m 125 f 10 m 15,6 m 15,6 m 15,6 m 15,6 f 11 m 1,6 m 1,6 m 1,6 m 1,6 f 12 µ 178 µ 178 µ 178 µ 178 f 0 µ 12 µ 12 µ 12 µ 12 A 4 0,2 0,2 0,2 0,2 0,2 A 3 2 2 2 2 2 A 2 20 50 200 800 3200 A 1 400 1600 6400 25600 A 0 3600 14400 57600 230400 STM-0e STM-0 STM-1e STM-1 STM-4 STM-16 STM-64 FFS FFS FFS FFS FFS FFS FFS FFS FFS FFS FFS FFS FFS FFS FFS STM-256. "" - 1.ITU-T G.825[13] - 2 T1.105.03 [21] (STM-0) 0 3.(ANSI). FFS - 4 k / - O.172/a3 (SDH) / [Hz] / / [UIpp] [kbit/s] f 4 f 3 f 2 f 1 f 8 f 9 f 10 f 11 f 12 f 0 A 4 A 3 A 2 A 1 A 0 40 k 8 400 10 5 m 100 50 m µ 12 0,5 10 20 40 1544 k 100 k 60 k 800 k 400 k 3500 k 18 k 32 k 20 k 100 k 10 900 1600 1 000 5000 500 10 2 100 21,9 100 3,3 0,4 20 2,19 5 m 20 m 10 m 200 m 110 m 130 12 m 3 m 50 m 11 m 33 m. [12] µ 12 µ 12 m 10 µ 12 m 10 G.824 [11] 0,5 0,5 0,5 0,5 0,5 10 10 10 10 10 30 50 50 100 200 50 150 200 1000 800 2048 6312 34 368 44 736 139 264. "" - 1 G.823-2 9 (2005/04) ITU-T O.172

/ ( ) A 0 A 1 A 2 A 3 A 4 ( ) / - O.172/3 / O.172_F03 / /../ /.. 6.8 1.6.8 : / UIpp 0,02 ± %Q a4 (SDH) 4 Q.a4 4 f9 f4 f1 f0 a3 3.(SDH). / - : (UI/s) / ( ± 2.5 Q% of setting ± 0.05 UIpp) 2πf 1 + ( f / f m ) 2 3dB m 2.6.8 : 10 Hz f m 2 f 3 f 3dB = 2 f 3 ±10% f m 3 f 3 Q (SDH) a3 (SDH) a4 (SDH) 4.a4 4 f9 f4 f1 f0 a3 3.(SDH) (2005/04) ITU-T O.172 10

. B ( ) -. / (SDH) / (Q) - O.172/4 Q f 9 f 1 FFS %8± STM-0 STM-0e (SDH) f 4 f 1 f 0 f 1 f 1 FFS khz 500 %8± khz 500 %12± f 4 f 0 f 1 FFS khz 500 f 1 %8± MHz 2 khz 500 %12± MHz 2 %15± f 4 FFS STM-1 STM-1e STM-64 STM-16 STM-4 FFS STM-256. FFS / (Q) - O.172/a4 Q 7 f 4 f 1 %8± 44 736 6312 2048 1544 khz 500 f 1 %8± 34 368 f 4 khz 500 %12± khz 500 f 1 %8± 139 264 MHz 2 khz 500 %12± MHz 2 %15± f 4 f 4 -f 1 3.6.8 / : A. (UIpp) (UIpp) 0,02 0,04.... 9 1.9 11 (2005/04) ITU-T O.172

2.9 1.2.9. / a5 5 4 f 4 f 6.SDH. f 1. f 4 f 6 - - O.172/5 [Hz] [UIpp] f 4 k 400 M 1,3 M 1,3 M 5 M 20 M 80 FFS.(ANSI) f 3 k 20 k 65 k 65 k 250 M 1 M 4 FFS f 2 k 2 k 3,25 k 6,5 k 25 k 100 k 400 FFS f 1 300 500 500 k 1 k 5 k 20 FFS f 7 30 19,3 19,3 10 12,1 12,1 FFS f 6 10 10 10 10 10 FFS A 4 0,2 0,1 0,2 0,2 0,2 0,2 FFS A 3 2 2 2 2 2 2 FFS A 2 20 50 50 200 800 3200 FFS STM-0e, STM-0 STM-1e STM-1 STM-4 STM-16 STM-64 STM-256. "" 1.f 4 f 1 2 T1.105.03 [21] STM-0 3 - O.172/a5 [Hz] [UIpp] [kbit/s] f 4 f 3 f 2 f 1 f 7 f 6 A 4 A 3 A 2 k 40 k 8 400 10 0,5 10 1544 k 100 k 18 900 20 0,5 10 2048 k 60 k 32 1600 10 0,5 10 6312 k 800 k 20 1000 100 0,5 10 34 368 k 400 k 100 5000 10 0,5 10 44 736 k 3500 k 10 500 200 0,5 10 139 264. "" -.f 4 - f 1 1 2 (2005/04) ITU-T O.172 12

/ ( ) - O.172/4... (SDH) ( ) (RMS) (RMS) 2.2.9 3.2.9.1.5.9 /. 6 /. [6] G.783 (SDH) O.172/6 4.2.9 [Hz] [UIpp] [kbit/s] 3,0 0,5 FFS 5,0 1,5 1,5 17 1544 30 2048 FFS 6312 22 34 368 60 44 736 75 139 264. FFS - 13 (2005/04) ITU-T O.172

" ". f 4 -f 3 f 4 -f 1.. a7 (SDH) 7 - O.172/7 (SDH) 3.9 [Hz] f 4 (db 3 ) [Hz] f 3 [Hz] f 12 [Hz] f 1 k 400 k 20 100 STM-0 STM-0e M 1,3 k 65 500 STM-1e M 1,3 k 65 k 12 500 STM-1 M 5 k 250 k 12 k 1 STM-4 M 20 M 1 k 12 k 5 STM-16 M 80 M 4 k 20 STM-64 M 320 M 16 k 80 STM-256.(ANSI) T1.105.03 [21] STM-0 -.[13] G.852 STM-256 -. f 12-1 2 3 - O.172/a7 (SDH) [Hz] f 4 (db 3 ) [Hz] f 3 [Hz] f 1 [kbit/s] k 40 k 8 10 1544 k 100 (k 0,7) k 18 20 2048 k 60 k 3 10 6312 k 800 k 10 100 34 368 k 400 k 30 10 44 736 M 3,5 k 10 200 139 264.kbit/s 2048 f 3 -. (2005/04) ITU-T O.172 14

(SDH).(4.9 ) (SDH) : f 4 f 3 f 1. /db 20 f 3 f 1 ( db 3 f 3 f 1 7 (. f 3 ±10% f 1 ±10% (Butterworth) f 4 (. /db 60 db 3 f 4 7 (.%10 ± f 4. /db 60 ( (SDH).ITU-T G.825 [13] 1.3.9.(4.9 ) : f 4 f 3 f 1 /db 20 f 3 f 1 (. f 3 f 1 a7 (. %10 ± f 3 %10 ± f 1 db 3 (Butterworth) f 4 ( kbit/s 139 264 34 368 2048 /db 60.kbit/s 44 736 6312 1544 /db 20 db 3 f 4 a7 (.%10 ± f 4. /db 60 (.f 1 (.f 1 A10 f 1. /db 40 Hz 0,1 [12] G.824 [11] G.823 [6] G.783 2.3.9. 15 (2005/04) ITU-T O.172

IV. 1.4.9... [15] G.798 [10] G.813 [6] G.783 [3] G.703 A : 2.3.8 ITU-T G.703 [3] ( [1] G.691 [14] G.957 (.dbm 12 dbm 10 (STM-256) 256 (STM-64) 64.ITU-T G.693 [2] W± %R± 4.9 : 8 W a10 10 R. 9 (SDH) (STM-N) N f 4 f 3 f 1 7. f 4 -f 3 f 4 -f 1 8.8 2.4.9 (2005/04) ITU-T O.172 16

-f 3 f 4 (SDH) [(UIpp) (W) - O.172/8 ] f 4 -f 12 f 4 -f 1 f 4 -f 3 f 4 -f 12 f 4 -f 1 FFS FFS FFS FFS STM-0e 0,03 0,05 0,035 0,07 STM-0 0,02 0,05 0,025 0,07 STM-1e 0,03 0,03 0,05 0,035 0,035 0,07 STM-1 0,03 0,03 0,05 0,035 0,035 0,1 STM-4 0,03 0,03 0,05 0,035 0,035 0,1 STM-16 0,03 0,05 0,035 0,1 STM-64 0,03 0,05 0,05 0,15 STM-256. FFS - 1. A - 2. - 3 f 4 -f 1 W (STM-256) 256-4.(UIpp) 0,035 0,1 f 4 -f 3. f 12-5 (STM-16) 16-6. (STM-64) 64 (SDH) 3.4.9 f 4 f 3 f 1 a7. f 4 -f 3 f 4 -f 1 9.9 (SDH) (W) - O.172/9 ] [(UIpp) [kbit/s] f 4 -f 3 f 4 -f 1 f 4 -f 3 f 4 -f 1 0,01 0,015 0,025 0,04 1544 0,01 0,015 0,025 0,04 2048 0,01 0,015 0,025 0,04 6312 0,02 0,03 0,025 0,04 34 368 0,02 0,03 0,025 0,04 44 736 0,02 0,03 0,025 0,04 139 264. 2.3.8 1. 2.(SDH) (SDH) 10 R.10 4.4.9 f 1 7 f 4 f 3 17 (2005/04) ITU-T O.172

(SDH) (R) - O.172/10 R f 1 f 4 FFS khz 300 f 1 %7± MHz 1 khz 300 %8± f 4 MHz 1 %10± khz 300 f 1 %7± MHz 1 khz 300 %8± MHz 3 MHz 1 %10± f 4 MHz 3 %15± khz 300 f 1 %7± MHz 1 khz 300 %8± MHz 3 MHz 1 %10± MHz 10 MHz 3 %15± MHz 10 %20± f 4 STM-0 STM-0e STM-1 STM-1e STM-4 STM-64 STM-16 STM-256 (SDH) a10.a10 f 4 f 1 a7 (SDH) (R) f 1 R [kbit/s] R.f 4 - O.172/a10 f 4 khz 1 %9± 544 f 4 khz 1 %7± f 1 %7± 2048 khz 1 f 1 %9± 6312 f 4 khz 1 %7± khz 300 f 1 %7± 34 368 f 4 khz 300 %8± 200 Hz f 1 %9± 44 763 khz 300 Hz 200 %7± f 4 khz 300 %8± khz 300 f 1 %7± 139 264 MHz 1 khz 300 %8± MHz 3 MHz 1 %10± f 4 MHz 3 %15± 5.4.9 f 1 6.4.9 A.. (2005/04) ITU-T O.172 18

( ) " " " ". (SDH) ITU-T G.783[6].(f C ) (P) :.f H f L f C f m. f C f m. (P).f C f 4 f 4 f C. 100 = f H f C. 0,01 = f L : f C.100 (g) ± 0,05 db ± 0,12 g.db.db 45 5.9 f m g (g). db 45 6.9 1.6.9. (RMS). II 10 1.10.3.7 (TIE) [7] G.810 (TIE) (TIE)..((TDEV) (MTIE) ). (TIE). ( ). 2.10 1.2.10.(ITU-T G.810 [7] ) 19 (2005/04) ITU-T O.172

: (TIE) τ 0 1/30s. [9] G.812 [10] G.813 2.2.10 Hz 10 : [9] G.812 [10] G.813. /db 20 (.%10 ± Hz 10 db 3 ) db 0,2± Hz 10 1 (. db 30 (Hz 0,1.( 55 200 000 3.2.10 : ±1 10 9 ns (ppm) 4,6 ± ) 4.2.10. τ : (TIE).11 (TIE) Z 0 (τ)± 5% ± [8] G.811 Z 0 (τ) (Z 0 ) - O.172/11 [s] τ [ns] Z 0 (τ) 0,05 τ 1000 2,5 + 0,0275 τ τ > 1000 29 + 0,001 τ Hz 1 -.(2.2.10 ) ( ) TIE. Hz 100. [10] G.813 [6] G.783 ITU-T G.783 [6]. [10] G.813 [9] G.812 3.10 (2005/04) ITU-T O.172 20

1.3.10 : τ 0 1/1000 s. [9] G.812 [6] G.783 2.3.10.Hz 100. /db 20 (.10% ± Hz 100 db 3 ) db 0,2 ± Hz 100 10 (. db 30 (Hz 1 3.3.10 : ±1 10 6 ns 4.3.10. τ :.12 Z 9 (τ)± (TIE) %5 [8] G.811 (TIE) (Z 9 ) ± Z 9 (τ) - O.172/12 [s] τ [ns] Z 9 (τ) 0,001 τ 100 2,5 + 0,0275 τ Hz 10 -.(2.3.10 ).ITU-T G.810 [7] (MTIE) 4.10 (MTIE) τ. MTIE(τ)..τ 21 (2005/04) ITU-T O.172

1.4.10 (MTIE) : 2.10 100 000 0,05 -.3.10 100 0,001 - :.(ITU-T G.813 [10].(τ =T 50 000 ns 10 ) ) MTIE(τ) (T) - 2.4.10. (MTIE).[7] G.810 /5.II : Z 1 (τ) ± (MTIE) %2±. τ Z 1 (τ) 13 (Z 1 ) - O.172/13 [s] τ 0,001 τ 1000 τ > 1000 [ns] Z 1 (τ) 0,5 + 0,0055 τ 5,8 + 0,0002 τ.itu-t G.811 [8] -.V 3.4.10 ) : ( Z 3 (τ) ± %7 ±. τ Z 3 (τ) 14 (2005/04) ITU-T O.172 22

(Z 3 ) - O.172/14 [s] τ 0,001 τ 1000 τ > 1000.ITU-T G.811 [7] [ns] Z 3 (τ) 3 + 0,033 τ 35 + 0,0012 τ.itu-t G.811 [8] - (TDEV) 5.10 (TDEV). τ. (MTIE) (RMS) TDEV(τ).0,42/τ 1.5.10 (ITU-T) : (TDEV) (12τ = 10 000 0,05 : (TDEV).(ITU-T G.813 [10] T 10 000 ns 10 ) ) TDEV(τ) T -. [8] G.811 [9] G.812 [10] G.813 2.5.10. (TDEV) Z 2 (τ) ±.[7] G.810 /3.II : TDEV %2. τ Z 2 (τ) 15 (Z 2 ) - O.172/15 [s] τ 0,05 τ 100 100 < τ 1000 1000 < τ 10 000 ± [ns] Z 2 (τ) 0,06 0,0006 τ 0,6.ITU-T G.811 [8] - 23 (2005/04) ITU-T O.172

.V 3.5.10 ) : ( Z 4 (τ) ± TDEV %7 ±. τ Z 4 (τ) (Z 4 ) - O.172/16 [s] τ 0,05 τ 100 100 < τ 1000 1000 < τ 10 000 [ns] Z 4 (τ) 0,36 0,0036 τ 16 3,6.ITU-T G.811 [8] - 6.10..... x i.0,55/t 6 y( nτ0) = Nτ N 0 i= 1 2i 1 xn+ i 2 N 1 N 1. τ 0 N Nτ 0 = T nτ 0 = t x i : -. = T 1.6.10 : 0,05 s T 10 000 s :.(ITU-T G.813 [10] 75000 ns/s Nτ 0 10 ) (2005/04) ITU-T O.172 24

2.6.10..6.10 : Z 5 (τ) ± %2 ±. T Z 5 (τ) 17 (Z 5 ) - O.172/17 [s] T 0,05 T 1000 T > 1000 [ns/s] Z 5 (T) 0,0055 0,0002.ITU-T G.811 [8] - 3.6.10 ) : ( Z 6 (T) ± %7 ±. T Z 6 (τ) (Z 6 ) - O.172/18 18 [s] T [ns/s] Z 6 (T) 0,05 T 1000 0,033 T > 1000 0,0012.ITU-T G.811 [8] -.....x i : T 7.10 ( / ) D( nτ ) = 0 60 Nτ N 2 0 i= 1 x n+ i N 4 6i 2 5N 2 + 4 N 3 6i + 2 N 4N + 4 N 2 1 3N + 2 25 (2005/04) ITU-T O.172

.0,8/T. τ 0 N Nτ 0 = T nτ 0 = t x i : -. = T 1.7.10 : 0,05 s T 10 000 s : Nτ 0.(ITU-T G.813 [10] 0,06 ns/n 2 10 ) 2.7.10. Z 7 (T) ±.7.10 : %2±. T Z 7 (τ) 19 (Z 7 ) - O.172/19 [s] T 0,05 < T < 2500 T > 2500 [ns/s 2 ] Z 7 (T) 0,5 T 2 8 10 8.ITU-T G.812 [9] - 3.7.10 ) : ( Z 8 (T) ± %7±. T Z 8 (τ) 20 (2005/04) ITU-T O.172 26

(Z 8 ) - O.172/20 [s] T 0,05 < T < 2500 T > 2500 (ns/s 2 ) Z 8 (T) T 2 1,6 10 7.ITU-T G.812 [9] - (TDEV). [10] G.813 [9] G.812 : %20± ( T 12τ max.. τ τ max.c ( (.. [9]. [9] G.812 G.812 11 /2.II /1.II. -.. [10] G.813 [9] G.812 : (. %5± (. - VI.%1..[16] O.3 /1.2 12 13 27 (2005/04) ITU-T O.172

A. / [4] G.707/Y.1322.. (STM-N) N. /. 1.A 1.1.A N 1 23 2 (PRBS).(STM-N) 30.( 30 ) / VC-4. 2.1.A Z0 J0 (STM-N) N."0" "1". 11001100 (CC H ) "10101010" (AA H ) (STM-N) N 1.A (STM-1) ITU-T.[19] O.181 1 O.150 [17] 2.A 1 1.2.A 1 23 2 (PRBS) (STM-1) /C (TSS1) 1.C-4 - (2005/04) ITU-T O.172 28

RSOH AU-PTRs MSOH POH (PRBS) C-4 O.172_FA.1 - O.172/1.A (STM-1) 1 (N 4) (STM-N).1.2.A (TSS1) N 1 2.2.A (N-1) C-4 VC-4 "1" "0".ITU-T G.783 [6] 2.A (STM-0) ITU-T O.150 [17] (STM-0) 0 3.2.A 1 23 2 (PRBS).C-3 0 RSOH AU-PTRs POH (PRBS) MSOH C-3 (STM-N) O.172_FA.2 - O.172/2.A (STM-0) 0 N (N 4) (STM-N) N 3.A 1.3.A 3.A (STM-N) N (N 64) (STM-N) N 1 31 2 1 23 2 (PRBS).C-4-Xc ITU-T O.150 [17].[19] O.181 /C (TSS9) 9-29 (2005/04) ITU-T O.172

RSOH AU-PTRs MSOH POH Fixed stuff (PRBS) C-4-nc (n 1) O.172_FA.3 - O.172/3.A (STM-N) N B (PLL).. 2.6.8..1.B f 3 3 %10 ± f 3. 2 = f 3dB f 3dB. a3 O.172_FB.1 - O.172/1.B ) / f m " " ((UIpp) : (setting) 2πf 1+ ( f m / f m 2 3dB ) = f m.. (2005/04) ITU-T O.172 30

C. G.813 G.812. MTIE () τ 7 4K K / τ 2 1 K / τ 2 min max (MTIE (τ)) K TDEV f 2 : 2 sin f ( πτf ) df τ max τ min. T τ T 12τ max τ min τ τ max 0,42 = K 2 0,84 = K 1 (TDEV(τ)).(TDEV). (TDEV(K2/f)) (TDEV) 2.C 1.C.. 31 (2005/04) ITU-T O.172

G.812/3 ) ( ( ) (T 120 000 s) G.812/4 τ(s) ( ) (T 120 000 s) ( ) G.812/3 ) ( G.812/4 τ(s) ( ) O.172_FC.1 - O.172/1.C G.812 (2005/04) ITU-T O.172 32

( ) G.813/5 (T 12 000 s) G.813/6 τ(s) ( ) ) ( ( ) (T 12 000 s) G.813/8 τ(s) ( ) - O.172/2.C G.813 I (SDH) " " [18] O.171 /I. 33 (2005/04) ITU-T O.172

II (SDH) 1.II 1.1.II (3 ). (PLL) -. (PLL).. 3.1.II 2.1.II.ITU-T G.810 [7] 2.1.II. 1.II - O.172/1.II. -... 3.1.II. 2.II (2005/04) ITU-T O.172 34

1 2 - O.172/2.II.( ). /.. 2.II 3.II. 3.1.II. - O.172/3.II..3.1.II 35 (2005/04) ITU-T O.172

III 1.III..1.4.8 ITU-T G.783 [6] AU-4 G.783 G.783 SDH NE SDH (PDH). (PRBS) - O.172/1.III ITU-T G.783 [6] : / (. (PRBS) (.ITU-T G.703 [3] (PDH). ( (.[6] G.783/1.3.2.15.. ( (2005/04) ITU-T O.172 36

(AU-n) n.(tu-m) m " " " ". ( ( IV. 2.3.9 db 3.... 1.IV.1.IV 1.IV 2.IV - O.172/1.IV.( 3= n 1 = n).db 3. :.(±). 0 :..(c 2.3.9.0 :.db (±). :.db n f x a f p g r c 37 (2005/04) ITU-T O.172

. 3.IV. f < 10 f x Lowe(f) Upper(f) U U ( f ) + r, f > f x = c, U ( f ) < c U ( f ), : (1-IV) U ( f ) = 20 log f 2n (1 g) f + n ( ) 2n (1 + a) f x L( f ) r, f > f x Lower( f ) =, L( f ) < c L( f ), : (2-IV) L( f ) = 20 log f 2n (1 g) f + n f ( ) 2n 2 2 (1 + a) f f + f x p (SDH) 1.3.IV 1= n kbit/s 2048 1.IV.dB 60 = c 0 = r 0,07 = g Hz 0,1 = fp 0,1 = a Hz 20 = fx. [db] [Hz] - O.172/1.VI Hz 20 kbit/s 2048 (2005/04) ITU-T O.172 38

) ((rms) 0,10 = a 0,07+ = g 0,10+ = a 0,07 = g. %10± = a db 3.dB 3.dB 3 V (MTIE) (TDEV) (TIE) 1.V.(2.5.10 2.4.10 ) (2.5.10 2.4.10 ).. ) 1/f 2.(C (TIE) 2.V (PRBS). 1.V.s 0 s 1 (PRBS). 31 (ns) f s x i.(hz 30 ) f s f s x i Hz 6,4 z i. 671 000 (TIE). 1.V.99 123 (LSB). 50 000 39 (2005/04) ITU-T O.172

) 13 10 (31 24 1 1 0 1 17 z i x i khz 6,4 2 ( 30 Hz) - O.172/1.V f s O.172_FV.1 (TIE) (TIE) 2.V 1.V. (MTIE) : 2,884 2,884 w(n) n 256 + 0.5 1 w( n) = 2π 64 167 z i 335 500 x i (LSB) 2.V.. 50 000 x i Map ) 10 (31 24 11 8 0 w(0)... 255 w(255) e 2 0.5t dt z i 3.V x i khz 6,4 8 800 Hz ( > 30 Hz) (TIE) - O.172/2.V F s O.172_FV.2 VI (MTIE)..Hz 10.Hz 500 %1 (2005/04) ITU-T O.172 40

.(G.812 /10 ) (MTIE) 2.VI Hz 10 1.VI Hz 500 3.VI. (MTIE) %1 Hz 500. (MTIE) 4.VI.%50 Hz 10 (MTIE) 6.VI. 5.VI. τ > 0,1 Hz 10 %1. (MTIE) Hz 10 (MTIE). Hz 500.G.812 /10 x(t) ( -1.IV ( -1.VI.w 3 (t) w 2 (t) w 1 (t) 1.VI. 10 000=τ 3 280=τ 2 0,05=τ 1 µs 0,097=A 3 0,7=A 2 0,3=A 1 u(t).hz 10 u(t) ( -1.VI x(t) w 1 (t) ( -1.VI. s 10 000 0 = t ( s 1 0 = t ( G.812/10 - O.172/1.IV (Hz 10 ) 41 (2005/04) ITU-T O.172

.1.VI.MTIE (MTIE) u(t) x(t) u(t) MTIE MTIE 2.VI. x(t).u(t) x(t) (MTIE ) x(t) MTIE u(t) MTIE O.172_FVI.2 u(t) x(t) (MTIE) 1.VI - O.172/2.VI Hz 500 x(t) 3.VI Hz 500 MTIE. 4.VI. %1 G.812/10 - O.172/3.VI (Hz 500 ) (2005/04) ITU-T O.172 42

(%1 MTIE ) (MTIE ) x(t) MTIE u(t) MTIE O.172_FVI.4 3.VI u(t) x(t) - O.172/4.VI. x(t) 5.VI.Hz 10 u(t) x(t) w 1 (t) 1 0 = t (Hz 10 ) ( -1.VI - O.172/5.VI.u(t) x(t) 5.VI. τ > 0,1 %0,1 10 1 0.1 (s 0,1 < τ MTIE ) 0.1 1 10 100 1000 10 000 [s] x(t) MTIE (MTIE ) 5.VI u(t) x(t) (MTIE) u(t) MTIE O.172_FVI.6 O.172/6.VI 43 (2005/04) ITU-T O.172

VII 1.VII 1.4.9.... mui 10...f 4 -f 1 VIII... 2.VII. 1.VII.. mui 100.f 4 f 1 - O.172/1.VII DUT () O.172_FVII.1 (2005/04) ITU-T O.172 44

.1.VII 4.VII 3.VII 2.VII. 2 1. 2.VII. 2 1.. - ( ) mui 100.(FM). 2.. / 0,342 t f (RF)... VIII τ 4 Precision clock and modulation generation Fc = 9,95328 GHz f = 20 khz to 80 MHz = Oscillator 2 2 Fc+ f PM 1 F c GHz 13 O.172_FVII.2 - O.172/2.VII. 3.VII.. (AND)..(NRZ) ( ) 45 (2005/04) ITU-T O.172

.(RZ) -. (NRZ) (RZ) NRZ RZ NRZ - O.172/3.VII O.172_FVII.3. 4.VII (STM-16) 16 (STM-64) 64.. NRZ D-FF LN MZ NRZ - O.172/4.VII O.172_FVII.4 3.VII... 5.VII. (2005/04) ITU-T O.172 46

(mui ) mui 100 50 40 30 20 10 0 10 20 40-50 30-40 20-30 10-20 0-10 10-0 20-10 30-20 30 40 50 1 2 3 4 5 S1 S5 S3 - O.172/5.VII O.172_FVII.5. 1.VII. - O.172/1.VII ms 1 ms 1 t min < µs 100 µs 100 t min ms 2 µs 31 µs 6,7 f m ( khz 1 ( khz 65 khz 300 1 (TM-1) ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 ms 1 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 100 µs 10 µs 10 µs 10 µs 10 µs 10 µs 10 µs 10 µs 10 µs 10 1 µs 1 µs 1 µs ns 100 µs 1,5 µs 200 µs 8 µs 2 ns 400 µs 40 µs 2 ns 400 ns 100 µs 10 ns 667 ns 100 ns 25 MHz 1.3 ( khz 10 ( khz 250 MHz 1 MHz 5 ( khz 50 ( MHz 1 MHz 5 MHz 20 ( khz 200 ( MHz 3 MHz 20 MHz 80 4 (STM-4) 16 (STM-16) 64 (STM-64) 47 (2005/04) ITU-T O.172

.khz 10 Hz 10 (. f 1-1. 60-2 Hz 10-3. (PRBS). khz 1 10 ms 1 µs 100-4 W %20 (STM-64) ) mui 55± R.W± %R±. 4.9 64 mui 35 (f 4 -f 3 ) mui 100.MHz 10.(. -1.A VII -2.VIII VII VIII (SDH) -3.1.4.9 VIII 1.VIII.....VII.. 2.VIII (rms)..3.viii 1.2.VIII (1 (2005/04) ITU-T O.172 48

(Bessel-Thomson) -. 0,75 db 3.G.691 /A G.957 /B. -1. 64 ). ((UI) ) (..((UI) 0,5 ± ). xi.1.iiiv x i.0= x i i [x 1.. x N ]. f N = 125 10 6 0 f 0 : (2 (3 (4 x' 24 n= 1 i = 24 n= 1 x i n p i n (SDH) 1= p i. p i.2.viii. 0= p i.(sdh) x i x' i. -2 y i x i..y i (PDF y ) σ PD.(PDF y ) y i (rms). (rms) (5 (6 (7 49 (2005/04) ITU-T O.172

SDH x i - O.172/1.VIII p i - O.172/2.VIII x' i x i - O.172/3.VIII (2005/04) ITU-T O.172 50

(. ).1010 (PSD RP ).(O/E) ). (SSB) (UI 2 /Hz) Hz/ (SSB) (.(UI 2).(PSD RJ ) (PSD RP ) f (PSD RJ ).(rms σr) (PDF).σ T = [σ 2 PD + σ 2 R ] 0,5 (rms) σ R.(PDF R ) (PDF R ) (PDF Y ).(PDF T ) (PDF T ). 4.VIII. 2.2.VIII (1 (2 (3 (4 3.2.VIII (1 (2 (3 (4.(SDH) 5.VIII 4.VIII (STM-64) 64.(STM-16) 16. (STM-256) 256 (PRBS). 3 N bytes A1 3 N bytes A2 3/2 N bytes J0/Z0 3/2 N bytes J/Z0 3.VIII (1 (2 (3 F6 F6 F6 F6 28 28 28 28 AA AA AA AA AA AA CC CC CC CC CC CC CC ( 9 N) SOH 00 H :SDH ( 1 7 2) 1 - O.172/4.VIII O.172_FVIII.4 51 (2005/04) ITU-T O.172

3 N bytes A1 F6 F6 F6 3 N bytes A2 3/4 N bytes J0/Z0 28 28 28 AA AA AA CC CC 3/4 N bytes J0/Z0 CC F0 F0 3/4 N bytes J0/Z0 3/4 N bytes J0/Z0 F0 FF 00 FF 00 ( 9 N) SOH 00 H :SDH ( 1 7 2) 2 - O.172/5.VIII O.172_FVIII.5 4.VIII x x p(x) x.t.(bw).t T BW 2 = N (BW) x N T x c(x) c(x) x. x.c max (x) = c(x) N N x. p(x) c max (x) x ( ).c max (x) c max (x)..x p max (x).x. c(x) (rms).c max (x) p(x) 6.VIII 60= T MHz 80= BW x p max (x).6 c max (x).p max (x) 6,43.N = 9.6 10 9 6,43. x.12,86 (2005/04) ITU-T O.172 52

x - O.172/6.VIII x (PDF) 53 (2005/04) ITU-T O.172

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