1、 G Y /T 153 2000 Specifications and methods of measurement on access - controller used in CATV subscriber addressable management systems 2000-05-25 2000-08-01 1999429 GY/T 153 2000 1 1 2 GY/T 124 1995 GY/T 121 1995 GB/T 11318 1996 GB 8898 1997 GY/T 106 1999 GY/T 143 2000 3 3.1 passive transmission 3
2、.2 active transmission 3.3 DC controlled access-controller 3.4 AC controlled access-controller 3.5 two-way transmission access-controller 3.6 attenuation control ratio dB G Y /T 153 2000 Specifications and methods of measurement on access- controller used in CATV subscriber addressable management sy
3、stems 2000-05-25 2000-08-01 GY/T 153 2000 2 3.7 amplitude disturbance ratio dB 4 4.1 5 1 1 A 2 / B 3 C 4 D 5 E 6 4.2 4.2.1 4.2.2 4.3 4.3.1 4.1 4.3.2 FM Z1 0.3MHz -60dBc 4.4 UHF GY/T 153 2000 3 2 A 87 750 1 MHz 5 750 2 dB 1.0 5.1 3 12 5.3 4 dB 12 5 dB 12 5.4 6 75 7 dB 46 5.7 30 5 550MHz 8 dB 22 550 7
4、50MHz 5.9 9 % 3 5.6 -10 fc 0.25MHz 10 ( / ) dB 26 fc 0.25MHz 5.10 11 KV 5 10/700 s GB/T11318.14 1996 6.2.2 AC40 65 (50Hz) 12 V AC150 250 (50Hz) 13 VA 5 14 -25+55 1 12 16 20 16 20 24 18 22 20 24 dB 1.5 dB 5 750MHz 3.5 2.5 2 3.5 2.5 2 3.5 2.5 3.5 2.5 2 4 6 8 10 12 14 16 18 21 24 dB 13 15 17 18 19 20 2
5、1 22 23 24 GY/T 153 2000 4 3 B 1 MHz 87750 2 dB 1.5 5.1 3 dB 6880 4 dB -2 5.3 5 dBv 722 6 dB 8 5.2 7 C/CSO dB 60 8 C/CTB dB 60 79 PAL-D Vo=72 dB 5.5 9 dB 12 10 dB 12 5.4 11 75 12 dB 46 5.7 30 87 550MHz 13 dB 22 550 750MHz 5.9 14 % 3 5.6 15 KV 5 10/700 s GB/T11318.14-1996 6.2.2 -10 fn 0.25MHz 16 ( /
6、) dB 26 fn 0.25MHz 5.10 AC40 65 50Hz 17 V AC150 250 50Hz 18 VA 14 19 -25+55 GY/T 153 2000 5 4 C 1 MHz 87750 2 dB 1.0 5.1 3 12 5.3 4 dB 12 5 dB 12 5.4 6 75 7 dB 15 30 87 550MHz 8 dB 22 550 750MHz 5.9 9 % 3 5.6 10 KV 5 10/700 s GB/T11318.14 - 1996 6.2.2 -10 fc 0.25MHz 11 ( / ) dB 26 fc 0.25MHz 5.10 AC
7、40 65 50Hz 12 V AC150 250 50Hz 13 VA 5 14 -25+55 GY/T 153 2000 6 5 D 1 MHz 87750 2 dB 1.5 5.1 3 dB 6880 4 dB -2 5.3 5 dB 722 6 dB 8 5.2 7 C/CSO dB 60 8 C/CTB dB 60 79 PAL-D Vo=72 dB v 5.5 9 dB 12 10 dB 12 5.4 11 75 12 dB 15 30 87 550MHz 13 dB 22 550 750MHz 5.9 14 % 3 5.6 15 KV 5 10/700 s GB/T11318.1
8、4 -1996 6.2.2 -10 fc 0.25MHz 16 ( / ) dB 26 fc 0.25MHz 5.10 AC40 65 50Hz 17 V AC150 250 50Hz 18 VA 14 19 -25+55 GY/T 153 2000 7 6 E 1 MHz 87 750 565 2 dB 1.8 1.5 3 dBv 6880 1035 4 dB -2 0 5.3 5 dBv 722 1035 6 dB 10 5.2 7 C/CSO dB 60 8 C/CTB dB 60 79 PAL-D Vo=72 dB 5.5 9 dB 12 5.4 10 75 11 dB 46 52 5
9、.7 30 5 550MHz 12 dB 22 550 750MHz 5.9 13 % 3 5.6 14 KV 5 10/700 s GB/T11318.14 -1996 6.2.2 -10 fc 0.25MHz 15 ( / ) dB 26 fc 0.25MHz 5.10 AC40 65 50Hz 16 V AC150 250 50Hz 17 VA 18 18 -25+55 GY/T 153 2000 8 5 5.1 5.1.1 1 1 5.1.2 1 75 87 750MHz 5 65MHz( ) 87 750MHz A1 A2 (A1-A2)/2 c 5.2 5.2.1 2 2 a 2
10、b 5.2.2 0 A1 1GHz GY/T 153 2000 9 75 A+3dB Nf 3dB A1 Nf 5.3 5.3.1 1 5.3.2 75 5.4 5.4.1 3 3 5.4.2 75 c 5.5 C/CTB C/CSO 5.5.1 4 4 C/CTB C/CSO 1GHz 75 PAL-D GY/T 153 2000 10 5.5.2 87 750MHz 79 (1 5ch ) 72dB 75 C/CTB C/CSO 5.5.3 87 750M 6 9 A CTB CSO 5.6 5.6.1 5 5 5.6.2 HM= / 100% 5.6.3 0.1V/div(AC ) :
11、5ms/div ) HM 5.7 5.7.1 6 6 5.7.2 75 72dB PAL-D GY/T 153 2000 11 A1 b A2 c A1-A2 5.7.3 87 750MHz 4 6 5.8 5.8.1 6 5.8.2 75 72dB A1 A2 A1-A2 5.8.3 87 750MHz 4 6 5.9 5.9.1 7 7 5.9.2 72dB A1 75 A2 A1-A2 5.10 PAL-D GY/T 153 2000 12 5.10.1 8 fc A1 fn A2 8 5.10.2 fc A1 76dB fn=fc 30ms 0.25MHz A2 A2 =54 dB 1
12、dB A2 1dB 10 A2 A2-A1 fn=fc fn=fc 0.5MHz A2= A1 10dB A2-A1 fn=fc 0.5MHz fn=fc-0.5MHz A2= A1 10dB A2-A1 fn=fc-0.5MHz g e f fc 0.25MHz 2 1GY/T 153 2000 13 A C/CTB C/CSO MHz C/CTB MHz C/CSO MHz Z2 120.25 120.25 120.50 Z16 288.25 288.25 288.50 Z21 328.25 328.25 328.50 Z36 448.25 448.25 448.50 DS13 471.25 471.25 472.50 DS20 527.25 527.25 528.50 DS22 543.25 543.25 544.50 Z38 567.25 567.25 568.50 DS42 743.25 743.25 743.50
