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2、formation technology Galvanic isolation of balanced interchange circuits 1. 1.1 (NRZ) . KS X 3107 ITU T V. 11 . 1. . 2. A ITU T V. 11 . 1.2 . . KS X 3107 ITU T V. 11: 1988 Electrical characteristics for balanced double current interchange circuits for general use with integrated circuit equipment in
3、 the field of data communications 1.3 . (twisted pair) 2 4 1 000 m 2 Mbit/s 1 Mbit/s 500 m . 20 kbit/s . 1.4 . a) b) c) 1.5 , , . 2. 2.1 X 3111: 2006 2 A, B F C 0 FC D, D G E 1 2.2 A, B E A, B B F C 0 R D, D 2 3. 3.1 KS X 3107 7.( ) ITU T V. 11 4. . 1 VA VB 0.3 V VA VB 0.3 V , 1 , 0 OFF ON 3.2 . X 3
4、111: 2006 3 4. 4.1 KS X 3107 , . . (floating) . . KS X 3107 | V | |V | . 4.1.1 , V0KS X 3107 8.1( ) . 4.1.2 , VtKS X 3107 8.3( ) . 4.1.3 (offset) , VOSKS X 3107 8.2( ) . 4.1.4 (rise time) (imbalance) , VeKS X 3107 8.4( tr) . 4.2 4.2.1 C 50 , A B Vh (lead) 4 mV . C 6 6 V , Ixa Ixb 150 A . . 4.2.2 A B
5、 100 10 s 10 90 % . 4.3 . 5. 5.1 KS X 3107 9.( ) ( ). . , . . 5.1.1 KS X 3107 9.1( ) . 5.1.2 KS X 3107 9.2( ) . 5.2 120 . 5.3 . ITU T V. 11 9. , . 1 : 1 . OFF . 2 : 0 . ON . 5.4 . 6. KS X 3107 10.( ) . . 6.1 KS X 3107 10.1( ) . X 3111: 2006 4 6.2 KS X 3107 . 6.3 KS X 3107 10.2( ) . 6.4 KS X 3107 . 7
6、. 0.4 0.6 mm (twisted pair) . ITU T V. 11 3 KS X 3107 2 3 . 8. , 500 V(a.c.) 106 . 3 1 2.5 kV(rms) . . 3 9. 3 ( ), Mark/ Space 10 % . 10. . 8. , . X 3111: 2006 5 A A.1 A.2 V.11 V. 11 V. 11 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKorean Agency for Technology and Standards http:/www.kats.go.kr KS X 3111: 2006 Information technologyGalvanic isolation of balanced interchange circuits ICS 35.100.10